2022年全国计算机等级考试二级公共基础最新题库

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1、management systems and measures establishe d by, and a number of pragmatic, combined part-time workforce education i nformation, the protection of the digital campus construction and sustainable development. Six Bureau attaches great importance to information technology security, infor mation techno

2、logy security, entrust XX City Center for educational information and equi pment dedicated to the work. Network security leading group was set up, chaire d by the Education Bureau Chief, head, for XX education Metro-network and information security emergency response leadership. Deputy group leader

3、for XX educational metropolitan area network and information security emergency response coordination, command. The team assist leader and deputy leader, responsible for network XX network security and i nformation . eam. Information security work Conference held each semester, a nd deployment ofnfo

4、rmation security of documents issued on a regular basis. Information security assessment is incl uded in the annual index. Strictly implement the information security budget to ensure information security of investment. By XX, education information and equipment Centre XX network network security an

5、d information security. According to the information technology security requirements, issued a document requires schools (units) implement, defined the information security guidelines, specific work practices, procedures, and requirements. Clear industry information security incidents (accidents) t

6、o detect, report a nd disposal processes. A ccording to self-examination, the school (units) basic established has network security management system; the school (units) according to this units actual, established has units personnel management, information system room management, and equipment mana

7、gement, and media management, and network security construction management, and shipped dimensi on management, and service outsourcing, management system; developed has computer and the network of network security responsibility held system, signed has network security responsibility; website of inf

8、ormation management personnel is responsible for confidential management, password management, on computer enjoys independent right, User name and passwor d of the computer for its proprietary, and release of provisions is prohi bited, such as leaks, investigated for responsibility. According to who

9、 is in charge of whos in charge, who i s running and who is responsible for, who uses principles of who is in c harge of management schools (units) defined the roles and responsibilities of information security, assurance responsibilities to schools. XX city schools (units) total site 20, 19 of whic

10、h were not classified security protection assessment, of which 1 (XX education and resource network) for classified security protection levels, without third-level information systems. otal education i nformation systems 1 (XX education cloud platform), contains features with e-Government, resource

11、library, test database, mail services, such as e-book s, all intranet services. No for grade protection grading record and evaluation of school (units), requirements the school (units) according to information securi ty grade protection about policy and standard, organization carried out information

12、 security grade prote ction security management system construction, and technology measures construction and grade evaluation, implementation grade protection system of the requirements, makes information system security management level obviouslyfacility up to 160 million Yuan, according to the st

13、andard, high quality planning XX educational metropolitan area network realizes Wan Zha okuan to schools, hundreds of megabytes of broadba nd to the table, wire (ie: Web, vi deo, audi o) to the target, electronic whiteboards, multimedia classr ooms, remote interactive video teachi ng system of moder

14、n educationalequipment in the cla ssroom. . Wit h Intel company on XX E ducation City domain network of topic case de sign, relies on Cisco company thought Shu aid chuan project staff free provides has three years technology support, from 2009 began, according to high st andards, and high of work th

15、ought, and manpower planning, and points step implementation, using school earthquake Hou reconstruction of opportunities, again planning elementary and middle schools campus network and education city domain network, and l ocal broadcasting network company cooperation, using broadcast TV network, w

16、ill physi cal fiber laying to each school, to minimum of cost achieved has physical fiber school school pass; Each school construction standards of campus network and network access to all rooms; XX education metropolitan area network center machine room equipment in the Ministry of education standa

17、rdization management platform, the Central Library of audio-visual e ducation resources, set up a Chinese teacher education cloud platform, implemented links the two platforms. At present, the citys primary and middle school students to computer 3198, vitality than 10:1; 809 equipment classes throug

18、h the classroom (primary and secondary); 36 of the campus network. The establishment of an advance d, practical Gigabit educational metropolitan area network, the citys schools have access to educational metropolitan area network, schools have computer networks, closed-circuit television network, br

19、oadcast networks into the classrooms, realize the triple play. Schools share Internet bandwidth, can me et the needs of teaching of the school office and at any time. According to Ministry of education on full started implementation teachi ng points digital education resources full cover project of

20、notification (taught technical letter (2012) 74th,) and XX Province Department of education on issued XX province teachi ng points digital education resources full cover project implementation views of notification (chuan taught letter (2013) 18th,) requirements, I city 6 a teachi ng points implemen

21、tation teaching points digital education resources full cover project, combined I city specific situation, developed issued has XX City Burea u on teaching points digital resources full cover project of implementation programme, Established XX, full coverage of digital resources in modern di stance

22、education teachi ng pr oject leading group, XX, chaired the Se cretary for education. E stablished, digital resources in modern distance education teaching, XX full coverage proje ct group, XX, Direct or of the Center for educational information and equipment chaired Zhu Guiyan, responsible for dist

23、ance education digital resources covering project work. Projects in XX city school digital resources in modern distance education teaching full-coverage proje ct leading group, digital resources in modern distance education teaching, and XX full coverage project group leadership and organization, in

24、 accordance with the unified arrangement of the whole province, responsible for university education digital resources covering proje ct management and implementation. According to provinces arrangements, I Center has arrangements Gongimprove, security prevention capacity obviously enhanced, securit

25、y hidden and security accident obviously reduced, effective guarantees information health development. XX E ducation Centre regularly carry out day-to-day network security monitoring information and equipment. By the appropriate technical staff, XX network engine room maintenance staff on site manag

26、ement and maintenance on a regular basis, scheduled viewing of networks, systems, databases and associated equi pment operating conditions, and make a record. Computer lab maintenance managers regularly run a variety of devices in the school information system parameters, server systems and various

27、data backup, so t hat there was a hardware failure in a system crash can resume qui ckly and efficiently. Computer lab maintenance managers establish a network antivirus system, Avira Virus system on a regular basis, and anti-virus software security a ssessment, time to upgrade. Computer lab mainten

28、ance management for all equipment in the room a regular dust, replace the old label. Regularly host servers, network switches, core routing, firewalls, hardware maintenance, such as equi pment failure, should be proce sse d in a timely manner in order to ensure safe and reliable operation of the sys

29、tem. In XX city information and equipment was established within the Centre, educational metropolitan area network center machine room XX. Servers and data stores and applications to set up in XX City metropolitan area network center machine room. WindowsServer2003, windowsServer2008, windowsServer2

30、012, Linux, the operating system, the database for SQL Server2008, Office software, such as Micr osoft Office software. Schools (units) of computer, information system security products for domestic products, incl udi ng the use of 360 and kingsoft Internet security software. XX education metropolit

31、an area network used by the server for HP, firewall and information security product for Huaweiand Cisco products. In their daily work, to publicize related knowledge and information security considerations. Enhanced global awareness of network and information security, and strive to achieve network

32、 everyone knows security and virus before the guard, to improve network and information security, ensure that the XX education system network and i nformation system security. Tracking reporting system requires all parties to strengthen collaboration, work closely with emergency safety plan develope

33、d XX education metropolitan area network, regularly carry out emergency drills, and carried out special funds every year to protect the security of information. Annual 2-3 professional training for network managers in the cit y, forming technology with a strong professional and technical team, schoo

34、l network managers on common network failures and be ca pable of solving security issues. Issues that cannot be resolve d, timely forms of meetings, such as meetings, analysis, and solutions through a meeting, without rolling up the ability to solve problems, and feedba ck to superiors in writing de

35、partments to resolve. Through self-examination, we are well aware, relative lack of investment in education, facilities and equi pment for further updates, education development is still uneven, new education concepts need to be further enhanced to some extent and restricting the development of city

36、 education. We will take the opportunity of government supervision, to strive for the province education demonstration counties as a driving force, further increase input in education, efforts to promote thelong wing, and Li Wanfu, and Michael Jenkins, and Che n Jian, and Song and xiaochuanyun, 7 bi

37、t comrade participate in province backbone face-to-face or network learning, do each tea chi ng points are has teachers participate in training, October 17, 2013, issued XX city education information and equipment Center on requirements the teachi ng points schoolfor good satellite ground station in

38、stallation prepared of notification, requirements school related management personnel familiar XX pr ovince teaching poi nts digital education resources full cover proje ct constructi on management manual, Particularly with regard to installation preparation parts according to the point of XX provin

39、ce full coverage of digital educational resources in the project construction management manual . Devices are able to receive TV signals and IP data, the schools have school training and school-based application to use good. Actively organize implementation of a division of a class, a teacher in one

40、 class activity. XX in XX city first to complete full registration of teachers working in this city, XX, S un class rate of 54 per cent respectively, the forefront. In XX, a division of a class, a class a total ranked first in Division activities, was awarded the national ministerial one, 2 pr ovinc

41、ial second prize, third prize at the provincial level 3. Actively organize implementation of the e-learning space the work of everyone. At present, in the open spa ce of public service platform of provincial educational resources teachers number 2444, 83 to the total number of teachers, student numb

42、er is 6569 of the open space, the citys total stude nts 18.31 to (junior hig h school students in 30 above, students not require d), registration number to meet the requirements of teachers and students, in XX in first place. Five, information technol ogy application capability as a means to boost t

43、eaching of teachers to use information, Education Bureau of XX title and modern educational technol ogy teacher assessment levels linked to the examination; launched a provinci al model school of modern education technology selecti on, a dvanced unit in education a year (individual) award. o expedit

44、e education informatization work, the city established the school running level of supervision and assessment system. Information education in school performance evaluation, e ducation assessment information work more than to cut weight 10. Practice is a regular room supervision, e ducation informat

45、ion steering, steering, steering with the end, principals of education i nformation into performance assessment and school level monitoring and evaluation, to develop a scientific, operational education information steering assessment methods, tracking management of education information and applica

46、tions. By March 2016, 100 of the teachers, I participate d in a national educational technology training for primary and secondary school teachers, the teachers have made to cut 80 primary and middle school teachers educational technology proficiency test certificate. At present , all schools have a

47、cce ss to broadband networks. Training classification training of teachers, school teachers, academic leaders, information technology, teacher training and net work management personnel from the County, within the school back to school training once training is complete. Through this mode of classif

48、ication training, i nformation technol ogy application capability training of teachers in our city reached 100. XX series of effective information 全国计算机等级考试二级公共基础最新题库( 一) 第一章数据结构与算法一. 选择题1. 算法的时间复杂度是指( c ) A.执行算法程序所需要的时间 B.算法程序的长度C.算法执行过程中所需要的基本运算次数 D. 算法程序中的指令条数2. 算法的空间复杂度是指( d ) A.算法程序的长度 B.算法程序中的

49、指令条数C.算法程序所占的存储空间 D.算法执行过程中所需要的存储空间3. 下列叙述中正确的是( a ) A.线性表是线性结构 B.栈与队列是非线性结构C.线性链表是非线性结构 D.二叉树是线性结构4. 数据的存储结构是指( b ) A.数据所占的存储空间量 B.数据的逻辑结构在计算机中的表示C.数据在计算机中的顺序存储方式 D.存储在外存中的数据5. 下列关于队列的叙述中正确的是( c ) A.在队列中只能插入数据 B.在队列中只能删除数据C.队列是先进先出的线性表 D.队列是先进后出的线性表6. 下列关于栈的叙述中正确的是( d ) A.在栈中只能插入数据 B.在栈中只能删除数据C.栈是先

50、进先出的线性表 D.栈是先进后出的线性表7. 设有下列二叉树: 对此二叉树中序遍历的结果为( b ) A. ABCDEF B.DBEAFC C.ABDECF D. DEBFCA 8. 在深度为5 的满二叉树中, 叶子结点的个数为( b ) A. 32 B. 31 C. 16 D. 15 9. 对长度为N的线性表进行顺序查找, 在最坏情况下所需要的比较次数为( b ) A. N+1 B. N C .(N+1)/2 D. N/2 10. 设树 T的度为 4, 其中度为1,2,3,4的结点个数分别为4,2,1,1 .则 T的叶子结点数为 a A. 8 B. 7 C . 6 D. 5 二. 填空题1.

51、 对长度为n 的有序线性表中进行二分查找, 需要的比较次数为( log2n ) *：二分法查找只适用于顺序存储的线性表，且表中元素必须按关键字有序（升序）排列。对于无序线性表和线性表的链式存储结构只能用顺序查找。在长度为 n 的有序线性表中进行二分法查找，其时间复杂度为O （log2n ）。2. 设一棵完全二叉树共有700 个结点 ,则在该二叉树中有( 350 ) 个叶子结点3. 设一棵二叉树的中序遍历结果为DBEAFC, 前序遍历结果为ABDECF, 则后序遍历结果为( debfca ) 4. 在最坏情况下, 冒泡排序的时间复杂度为( n(n-1)/2 ) 补充：精选学习资料 - - - -

52、 - - - - - 名师归纳总结 - - - - - - -第 1 页，共 10 页management systems and measures establishe d by, and a number of pragmatic, combined part-time workforce education i nformation, the protection of the digital campus construction and sustainable development. Six Bureau attaches great importance to informati

53、on technology security, infor mation technology security, entrust XX City Center for educational information and equi pment dedicated to the work. Network security leading group was set up, chaire d by the Education Burea u Chief, head, for XX education Metro-netw ork and information security emerge

54、ncy response leadership. Deputy group leader for XX educational metropolitan area network and information security emergency response coordination, command. The team assist leader and deputy leader, responsible for network XX network security and i nformation . eam. Information security work Confere

55、nce held each semester, and deployment of information security of documents issued on a regular basis. Information security assessment is incl uded in the annual index. Strictly implement the information security budget to ensure information security of investment. By XX, education information and e

56、quipment Centre XX network network security and information security. According to the information technology security requirements, issued a document requires schools (units) implement, defined the information security guidelines, specific work practices, procedures, and requirements. Clear industr

57、y information security incidents (accidents) to detect, report a nd disposal processes. A ccording to self -examination, the school (units) basic established has network security management system; the school (units) according to this units actual, established has units personnel management, informa

58、tion system room management, and equipment management, and media management, and network security construction management, and shipped dimensi on management, and service outsourcing, management system; developed has computer and the network of network security responsibility held system, signed has

59、network security responsibility; website of information management personnel is responsible for confidential management, password management, on computer enjoys independent right, User name and passwor d of the computer for its proprietary, and release of provisions is prohi bited, such as leaks, in

60、vestigated for responsibility. According to who is in charge of whos in charge, who i s running and who is responsible for, who uses principles of who is in charge of management schools (units) defined the roles and responsibilities of information security, assurance responsibilities to schools. XX

61、city schools (units) total site 20, 19 of which were not classified security protection assessment, of which 1 (XX education and resource network) for classified security protection levels, without third-level information systems. otal education i nformation systems 1 (XX education cloud platform),

62、contains features with e-Government, resource library, test database, mail services, such as e-book s, all intranet services. No for grade protection grading record and evaluation of school (units), requirements the school (units) according to information securi ty grade protection about policy and

63、standard, organization carried out information security grade protection security management system construction, and technology measures constructi on and grade evaluation, implementation grade protection system of the requirements, makes information system security management level obviouslyfacili

64、ty up to 160 million Yuan, according to the standard, high quality planning XX educational metropolitan area network realizes Wan Zha okuan to schools, hundreds of megabytes of broadba nd to the table, wire (ie: Web, vi deo, audi o) to the target, electronic whiteboards, multimedia classr ooms, remo

65、te interactive video teachi ng system of modern educationalequipment in the cla ssroom. . Wit h Intel company on XX E ducation City domain network of topic case de sign, relies on Cisco company thought Shu aid chuan project staff free provides has three years technology support, from 2009 began, acc

66、ording to high standards, and high of work thought, and manpower planning, and points step implementation, using school earthquake Hou reconstruction of opportunities, again planning elementary and middle schools campus network and education city domain network, and local broadcasting network compan

67、y cooperation, using broadcast TV network, will physi cal fiber laying to each school, to minimum of cost achieved has physical fiber school school pass; Each school construction standards of campus network and network access to all rooms; XX education metropolitan area network center machine room e

68、quipment in the Ministry of education standardization management platform, the Central Library of audio-visual e ducation resources, set up a Chinese teacher education cloud platform, implemented links the two platforms. At present, the citys primary and middle school students to computer 3198, vita

69、lity than 10:1; 809 equipment classes through the classroom (primary and secondary); 36 of the campus network. The establishment of an advance d, practical Gigabit educational metropolitan area network, the citys schools have access to educational metropolitan area network, schools have computer net

70、works, closed-cir cuit television network, broadcast networks into the classrooms, realize the triple play. Schools share Internet bandwidth, can me et the needs of teaching of the school office and at any time. According to Ministry of education on full started implementation teachi ng points digit

71、al education resources full cover project of notification (taught technical letter (2012) 74th,) and XX Province Department of education on issued XX province teachi ng points digital education resources full cover project implementation views of notification (chuan taught letter (2013) 18th,) requi

72、rements, I city 6 a teachi ng points implementation teaching points digital education resources full cover project, combined I city specific situation, developed issued has XX City Burea u on teaching points digital resources full cover project of implementation programme, Established XX, full cover

73、age of digital resources in modern di stance education teachi ng pr oject leading group, XX, chaired the Se cretary for education. E stablished, digital resources in modern distance education teaching, XX full coverage proje ct group, XX, Direct or of the Center for educational information and equip

74、ment chaired Zhu Guiyan, responsible for distance education digital resources covering project work. Projects in XX city school digital resources in modern distance education teaching full-coverage proje ct leading group, digital resources in modern distance education teaching, and XX full coverage

75、project group leadership and organization, in accordance with the unified arrangement of the whole province, responsible for university education digital resources covering proje ct management and implementation. According to provinces arrangements, I Center has arrangements Gongimprove, security pr

76、evention capacity obviously enhanced, security hidden and security accident obviously reduced, effective guarantees information health development. XX E ducation Centre regularly carry out day-to-day network security monitoring information and equipment. By the appropriate technical staff, XX networ

77、k engine room maintenance staff on site management and maintenance on a regular basis, scheduled viewing of networks, systems, databases and associated equi pment operating conditions, and make a record. Computer lab maintenance managers regularly run a variety of devices in the school information s

78、ystem parameters, server systems and various data backup, so t hat there was a hardware failure in a system crash can resume qui ckly and efficiently. Computer lab maintenance managers establish a network antivirus system, Avira Virus system on a regular basis, and anti-virus software security a sse

79、ssment, time to upgrade. Computer lab maintenance management for all equipment in the room a regular dust, replace the old label. Regularly host servers, network switches, core routing, firewalls, hardware maintenance, such as equi pment failure, should be proce sse d in a timely manner in order to

80、ensure safe and reliable operation of the system. In XX city information and equipment was established within the Centre, educational metropolitan area network center machine room XX. Servers and data stores and applications to set up in XX City metropolitan area network center machine room. Windows

81、Server2003, windowsServer2008, windowsServer2012, Linux, the operating system, the database for SQL Server2008, Office software, such as Micr osoft Office software. Schools (units) of computer, information system security products for domestic products, incl udi ng the use of 360 and kingsoft Intern

82、et security software. XX education metropolitan area network used by the server for HP, firewall and information security product for Huaweiand Cisco products. In their daily work, to publicize related knowledge and information security considerations. Enhanced global awareness of network and inform

83、ation security, and strive to achieve network everyone knows security and virus before the guard, to improve network and information security, ensure that the XX education system network and i nformation system security. Tracking reporting system requires all parties to strengthen collaboration, wor

84、k closely with emergency safety plan developed XX education metropolitan area network, regularly carry out emergency drills, and carried out special funds every year to protect the security of information. Annual 2-3 professional training for network managers in the cit y, forming technology with a

85、strong professional and technical team, school network managers on common network failures and be ca pable of solving security issues. Issues that cannot be resolve d, timely forms of meetings, such as meetings, analysis, and solutions through a meeting, without rolling up the ability to solve probl

86、ems, and feedba ck to superiors in writing departments to resolve. Through self-examination, we are well aware, relative lack of investment in education, facilities and equi pment for further updates, education development is still uneven, new education concepts need to be further enhanced to some e

87、xtent and restricting the development of city education. We will take the opportunity of government supervision, to strive for the province education demonstration counties as a drivng force, further increase input in education, efforts to promote thelong wing, and Li Wanfu, and Michael Jenkins, and

88、 Che n Jian, and Song and xiaochuanyun, 7 bit comrade participate in province backbone face-to-face or network learning, do each tea chi ng points are has teachers participate in training, October 17, 2013, issued XX city education information and equipment Center on requirements the teachi ng point

89、s schoolfor good satellite ground station installation prepared of notification, requirements school related management personnel familiar XX pr ovince teaching poi nts digital education resources full cover proje ct constructi on management manual, Particularly with regard to installation preparati

90、on parts according to the point of XX province full coverage of digital educational resources in the project construction management manual . Devices are able to receive TV signals and IP data, the schools have school training and school-based application to use good. Actively organize implementatio

91、n of a division of a class, a teacher in one class activity. XX in XX city first to complete full registration of teachers working in this city, XX, S un class rate of 54 per cent respectively, the forefront. In XX, a division of a class, a class a total ranked first in Division activities, was awar

92、ded the national ministerial one, 2 provincial second prize, third prize at the provincial level 3. Actively organize implementation of the e-learning space the work of everyone. At present, in the open spa ce of public service platform of provincial educational resources teachers number 2444, 83 to

93、 the total number of teachers, student number is 6569 of the open space, the citys total stude nts 18.31 to (junior hig h school students in 30 above, students not require d), registration number to meet the requirements of teachers and students, in XX in first place. Five, information technol ogy a

94、pplication capability as a means to boost teaching of teachers to use information, Education Bureau of XX title and modern educational technol ogy teacher assessment levels linked to the examination; launched a provinci al model school of modern education technology selecti on, a dvanced unit in edu

95、cation a year (individual) award. o expedite education informatization work, the city established the school running level of supervi sion and assessment system. Information education in school performance evaluation, e ducation assessment information work more than to cut weight 10. Practice is a r

96、egular room supervision, e ducation information steering, steering, steering with the end, principals of education i nformation into performance assessment and school level monitoring and evaluation, to develop a scientific, operational education information steering assessment methods, tracking man

97、agement of education information and applications. By March 2016, 100 of the teachers, I participate d in a national educational technology training for primary and secondary school teachers, the teachers have made to cut 80 primary and middle school teachers educational technology proficiency test

98、certificate. At present , all schools have acce ss to broadband networks. Training classification training of teachers, school teachers, academic leaders, information technology, teacher training and net work management personnel from the County, within the school back to school training once traini

99、ng is complete. Through this mode of classification training, i nformation technol ogy application capability training of teachers in our city reached 100. XX series of effective information 5. 在一个容量为15 的循环队列中, 若头指针front=6,尾指针 rear=9, 则该循环队列中共有( 3) 个元素 . 队列是指允许在一端（队尾）进入插入，而在另一端（队头）进行删除的线性表。尾指针（ Rear

100、）指向队尾元素，头指针（front）指向排头元素的前一个位置（队头）。队列是“先进先出”或“后进后出”的线性表。队列运算包括：1）入队运算：从队尾插入一个元素；2）退队运算：从队头删除一个元素。循环队列及其运算：所谓循环队列，就是将队列存储空间的最后一个位置绕到第一个位置，形成逻辑上的环状空间，供队列循环使用。在循环队列中，用队尾指针rear 指向队列中的队尾元素， 用排头指针front指向排头元素的前一个位置，因此， 从头指针 front指向的后一个位置直到队尾指针rear 指向的位置之间，所有的元素均为队列中的元素。*：循环队列中元素的个数=rear-front。第二章程序设计基础一. 选

101、择题1. 结构化程序设计主要强调的是( b ) A.程序的规模B. 程序的易读性C.程序的执行效率D.程序的可移植性2对建立良好的程序设计风格，下面描述正确的是( a ) A程序应简单、清晰、可读性好B符号名的命名只要符合语法C充分考虑程序的执行效率D程序的注释可有可无3在面向对象方法中，一个对象请求另一对象为其服务的方式是通过发送( d ) A调用语句B命令 C口令 D 消息4信息隐蔽的概念与下述哪一种概念直接相关？( b ) A软件结构定义B模块独立性C模块类型划分D模块耦合度5下面对对象概念描述错误的是( a ) A任何对象都必须有继承性B对象是属性和方法的封装体C对象间的通过消息传递D

102、操作是对象的动态属性二填空题1结构化程序设计的三种基本逻辑结构为顺序、选择和（重复或循环）2源程序文档化要求程序应加注释。注释一般分为序言性注释和（功能性注释）3在面向对象方法中，信息隐蔽是通过对象的（封装）性来实现的4类是一个支持集成的抽象数据类型，而对象是类的（实例）类是指具有共同属性、共同方法的对象的集合。所以类是对象的抽象，对象是对应类的一个实例。精选学习资料 - - - - - - - - - 名师归纳总结 - - - - - - -第 2 页，共 10 页management systems and measures establishe d by, and a number of

103、 pragmatic, combined part-time workforce education i nformation, the protection of the digital campus construction and sustainable development. Six Bureau attaches great importance to information technology security, infor mation technology security, entrust XX City Center for educational informatio

104、n and equi pment dedicated to the work. Network security leading group was set up, chaire d by the Education Bureau Chief, head, for XX education Metro-network and information security emergency response leadership. Deputy group leader for XX educational metropolitan area network and information sec

105、urity emergency response coordination, command. The team assist leader and deputy leader, responsible for network XX network security and i nformation . eam. Information security work Conference held each semester, and deployment of information security of documents issued on a regular basis. Inform

106、ation security assessment is incl uded in the annual index. Strictly implement the information security budget to ensure information security of investment. By XX, education information and equipment Centre XX network network security and information security. According to the information technology

107、 security requirements, issued a document requires schools (units) implement, defined the information security guidelines, specific work practices, procedures, and requirements. Clear industry information security incidents (accidents) to detect, report a nd disposal processes. A ccording to self -e

108、xamination, the school (units) basic established has network security management system; the school (units) according to this units actual, established has units personnel management, information system room management, and equipment management, and media management, and network security constructio

109、n management, and shipped dimensi on management, and service outsourcing, management system; developed has computer and the network of network security responsibility held system, signed has network security responsibility; website of information management personnel is responsible for confidential

110、management, password management, on computer enjoys independent right, User name and passwor d of the computer for its proprietary, and release of provisions is prohi bited, such as leaks, investigated for responsibility. According to who is in charge of whos in charge, who i s running and who is re

111、sponsible for, who uses principles of who is in charge of management schools (units) defined the roles and responsibilities of information security, assurance responsibilities to schools. XX city schools (units) total site 20, 19 of which were not classified security protection assessment, of which

112、1 (XX education and resource network) for classified security protection levels, without third-level information systems. otal education i nformation systems 1 (XX education cloud platform), contains features with e-Government, resource library, test database, mail services, such as e-book s, all in

113、tranet services. No for grade protection grading record and evaluation of school (units), requirements the school (units) according to information securi ty grade protection about policy and standard, organization carried out information security grade prote ction security management system construc

114、tion, and technology measures construction and grade evaluation, implementation grade protection system of the requirements, makes information system security management level obviouslyfacility up to 160 million Yuan, according to the standard, high quality planning XX educational metropolitan area

115、network realizes Wan Zha okuan to schools, hundreds of megabytes of broadba nd to the table, wire (ie: Web, vi deo, audi o) to the target, electronic whiteboards, multimedia classr ooms, remote interactive video teachi ng system of modern educationalequipment in the cla ssroom. . Wit h Intel company

116、 on XX E ducation City domain network of topic case de sign, relies on Cisco company thought Shu aid chuan project staff free provides has three years technology support, from 2009 began, according to high st andards, and high of work thought, and manpower planning, and points step implementation, u

117、sing school earthquake Hou reconstruction of opportunities, again planning elementary and middle schools campus network and education city domain network, and l ocal broadcasting network company cooperation, using broadcast TV network, will physi cal fiber laying to each school, to minimum of cost a

118、chieved has physical fiber school school pass; Each school construction standards of campus network and network access to all rooms; XX education metropolitan area network center machine room equipment in the Ministry of education standardization management platform, the Central Library of audio-vis

119、ual e ducation resources, set up a Chinese teacher education cloud platform, implemented links the two platforms. At present, the citys primary and middle school students to computer 3198, vitality than 10:1; 809 equipment classes through the classroom (primary and secondary); 36 of the campus netwo

120、rk. The establishment of an advance d, practical Gigabit educational metropolitan area network, the citys schools have access to educational metropolitan area network, schools have computer networks, closed-circuit television network, broadcast networks into the classrooms, realize the triple play.

121、Schools share Internet bandwidth, can me et the needs of teaching of the school office and at any time. According to Ministry of education on full started implementation teachi ng points digital education resources full cover project of notification (taught technical letter (2012) 74th,) and XX Prov

122、ince Department of education on issued XX province teachi ng points digital education resources full cover project implementation views of notification (chuan taught letter (2013) 18th,) requirements, I city 6 a teachi ng points implementation teaching points digital education resources full cover p

123、roject, combined I city specific situation, developed issued has XX City Burea u on teaching points digital resources full cover project of implementation programme, Established XX, full coverage of digital resources in modern di stance education teachi ng pr oject leading group, XX, chaired the Se

124、cretary for education. E stablished, digital resources in modern distance education teaching, XX full coverage proje ct group, XX, Direct or of the Center for educational information and equipment chaired Zhu Guiyan, responsible for distance education digital resources covering project work. Project

125、s in XX city school digital resources in modern distance education teaching full-coverage proje ct leading group, digital resources in modern distance education teaching, and XX full coverage project group leadership and organization, in accordance with the unified arrangement of the whole province,

126、 responsible for university education digital resources covering proje ct management and implementation. According to provinces arrangements, I Center has arrangements Gongimprove, security prevention capacity obviously enhanced, security hidden and security accident obviously reduced, effective gua

127、rantees information health development. XX E ducation Centre regularly carry out day-to-day network security monitoring information and equipment. By the appropriate technical staff, XX network engine room maintenance staff on site management and maintenance on a regular basis, scheduled viewing of

128、networks, systems, databases and associated equi pment operating conditions, and make a record. Computer lab maintenance managers regularly run a variety of devices in the school information system parameters, server systems and various data ba ckup, so that there was a hardware failure in a system

129、crash can resume qui ckly and efficiently. Computer lab maintenance managers establish a network antivirus system, Avira Virus system on a regular basis, and anti-virus software security a ssessment, time to upgrade. Computer lab maintenance management for all equipment in the room a regular dust, r

130、eplace the old label. Regularly host servers, network switches, core routing, firewalls, hardware maintenance, such as equi pment failure, should be proce sse d in a timely manner in order to ensure safe and reliable operation of the system. In XX city information and equipment was established withi

131、n the Centre, educational metropolitan area network center machine room XX. Servers and data stores and applications to set up in XX City metropolitan area network center machine room. WindowsServer2003, windowsServer2008, windowsServer2012, Linux, the operating system, the database for SQL Server20

132、08, Office software, such as Micr osoft Office software. Schools (units) of computer, information system security products for domestic products, incl udi ng the use of 360 and kingsoft Internet security software. XX education metropolitan area network used by the server for HP, firewall and informa

133、tion security product for Huaweiand Cisco products. In their daily work, to publicize related knowledge and information security considerations. Enhanced global awareness of network and information security, and strive to achieve network everyone knows security and virus before the guard, to improve

134、 network and information security, ensure that the XX education system network and i nformation system security. Tracking reporting system requires all parties to strengthen collaboration, work closely with emergency safety plan developed XX education metropolitan area network, regularly carry out e

135、mergency drills, and carried out special funds every year to protect the security of information. Annual 2-3 professional training for network managers in the cit y, forming technology with a strong professional and technical team, school network managers on common network failures and be ca pable o

136、f solving security issues. Issues that cannot be resolve d, timely forms of meetings, such as meetings, analysis, and solutions through a meeting, without rolling up the ability to solve problems, and feedba ck to superiors in writing departments to resolve. Through self -examination, we are well aw

137、are, relative lack of investment in education, facilities and equi pment for further updates, education development is still uneven, new education concepts need to be further enhanced to some extent and restricting the development of city education. We will take the opportunity of government supervi

138、sion, to strive for the province education demonstration counties as a driving force, further increase input in education, efforts to promote thelong wing, and Li Wanfu, and Michael Jenkins, and Che n Jian, and Song and xiaochuanyun, 7 bit comrade participate in province backbone face-to-face or net

139、work learning, do each tea chi ng points are has teachers participate in training, October 17, 2013, issued XX city education information and equipmnt Ce nter on requirements the teachi ng points schoolfor good satellite ground station installation prepared of notification, requirements school relat

140、ed management personnel familiar XX pr ovince teaching poi nts digital education resources full cover project construction management manual, Particularly with regard to installation preparation parts according to the point of XX province full coverage of digital educational resources in the project

141、 construction management manual . Devices are able to receive TV signals and IP data, the schools have school training and school-based application to use good. Actively organize implementation of a division of a class, a teacher in one class activity. XX in XX city first to complete full registrati

142、on of teachers working in this city, XX, S un class rate of 54 per cent respectively, the forefront. In XX, a division of a class, a class a total ranked first in Division activities, was awarded the national ministerial one, 2 provincial second prize, third prize at the pr ovincial level 3. Activel

143、y organize implementation of the e-learning space the work of everyone. At present, in the open spa ce of public service platform of provincial educational resources teachers number 2444, 83 to the total number of teachers, student number is 6569 of the open space, the citys total stude nts 18.31 to

144、 (junior hig h school students in 30 above, students not require d), registration number to meet the requirements of teachers and students, in XX in first place. Five, information technol ogy application capability as a means to boost teaching of teachers to use information, Education Bureau of XX t

145、itle and modern educational technology teacher assessment levels linked to the examination; launched a provinci al model school of modern education technology selecti on, a dvanced unit in education a year (individual) award. o expedite education informatization work, the city established the school

146、 running level of supervision and assessment system. Information education in school performance evaluation, e ducation assessment information work more than to cut weight 10. Practice is a regular room supervision, e ducation information steering, steering, steering with the end, principals of educ

147、ation i nformation into performance assessment an d school level monitoring and evaluation, to develop a scientific, operational education information steering assessment methods, tracking management of education information and applications. By March 2016, 100 of the teachers, I participate d in a

148、national educational technology training for primary and secondary school teachers, the teachers have made to cut 80 primary and middle school teachers educational technology proficiency test certificate. At present , all schools have acce ss to broadband networks. Training cla ssification training

149、of teachers, school teachers, academic leaders, information technology, teacher training and net work management personnel from the County, within the school back to school training once training is complete. Through this mode of classification training, i nformation technol ogy application capabili

150、ty training of teachers in our city reached 100. XX series of effective information *：一个对象由对象名、属性和操作三部分组成。对象的基本特点：标识惟一性，分类性，多态性，封装性，模块独立性好。5在面向对象方法中，类之间共享属性和操作的机制称为（继承）第三章软件工程基础一. 选择题1. 在软件生命令周期中，能准确地确定软件系统必须做什么和必须具备哪些功能的阶段是（d）A.概要设计 B. 详细设计 C. 可行性研究 D. 需求分析2. 下面不属于软件工程的3 个要素的是（d ）A.工具 B. 过程 C. 方法 D

151、 环境软件工程的主要思想是将工程化原则运用到软件开发过程，它包括 3 个要素： 方法、 工具和过程。3. 检查软件产品是否符合需求定义的过程称为（ a ）A.确认测试 B. 集成测试 C. 验证测试 D. 验收测试4. 数据流图用于抽象描述一个软件的逻辑模型，数据流图由一些特定的图符构成。下列图符名标识的图符不属于数据流图合法图符的是( a ) A.控制流 B. 加工 C. 数据存储 D. 源和潭数据流图以图形的方式描绘数据在系统中流动和处理的过程，它反映了系统必须完成的逻辑功能，是结构化分析方法中用于表示系统逻辑模型的一种工具。上图是数据流图的基本图形元素：加工（转换） ：输入数据经加工变换

152、产生输出。数据流：沿箭头方向传送数据的通道，一般在旁边标注数据流名。存储文件（数据源） ：表示处理过程中存放各种数据的文件。源，潭：表示系统和环境的接口，属系统之外的实体。画数据流图的基本步骤：自外向内，自顶向下，逐层细化，完善求精。下图是一个数据流图的示例：加工数据流存储文件源、潭精选学习资料 - - - - - - - - - 名师归纳总结 - - - - - - -第 3 页，共 10 页management systems and measures establishe d by, and a number of pragmatic, combined part-time workfo

153、rce education i nformation, the protection of the digital campus construction and sustainable development. Six Bureau attaches great importance to information technology security, infor mation technology security, entrust XX City Center for educational information and equi pment dedicated to the wor

154、k. Network security leading group was set up, chaire d by the Education Burea u Chief, head, for XX education Metro-netw ork and information security emergency response leadership. Deputy group leader for XX educational metropolitan area network and information security emergency response coordinati

155、on, command. The team assist leader and deputy leader, responsible for network XX network security and i nformation . eam. Information security work Conference held each semester, and deployment of information security of documents issued on a regular basis. Information security assessment is incl u

156、ded in the annual index. Strictly implement the information security budget to ensure information security of investment. By XX, education information and equipment Centre XX network network security and information security. According to the information technology security requirements, issued a do

157、cument requires schools (units) implement, defined the information security guidelines, specific work practices, procedures, and requirements. Clear industry information security incidents (accidents) to detect, report a nd disposal processes. A ccording to self -examination, the school (units) basi

158、c established has network security management system; the school (units) according to this units actual, established has units personnel management, information system room management, and equipment management, and media management, and network security construction management, and shipped dimensi o

159、n management, and service outsourcing, management system; developed has computer and the network of network security responsibility held system, signed has network security responsibility; website of information management personnel is responsible for confidential management, password management, on

160、 computer enjoys independent right, User name and passwor d of the computer for its proprietary, and release of provisions is prohi bited, such as leaks, investigated for responsibility. According to who is in charge of whos in charge, who i s running and who is responsible for, who uses principles

161、of who is in charge of management schools (units) defined the roles and responsibilities of information security, assurance responsibilities to schools. XX city schools (units) total site 20, 19 of which were not classified security protection assessment, of which 1 (XX education and resource networ

162、k) for classified security protection levels, without third-level information systems. otal education i nformation systems 1 (XX education cloud platform), contains features with e-Government, resource library, test database, mail services, such as e-book s, all intranet services. No for grade prote

163、ction grading record and evaluation of school (units), requirements the school (units) according to information securi ty grade protection about policy and standard, organization carried out information security grade protection security management system construction, and technology measures constr

164、ucti on and grade evaluation, implementation grade protection system of the requirements, makes information system security management level obviouslyfacility up to 160 million Yuan, according to the standard, high quality planning XX educational metropolitan area network realizes Wan Zha okuan to s

165、chools, hundreds of megabytes of broadba nd to the table, wire (ie: Web, vi deo, audi o) to the target, electronic whiteboards, multimedia classr ooms, remote interactive video teachi ng system of modern educationalequipment in the cla ssroom. . Wit h Intel company on XX E ducation City domain netwo

166、rk of topic case de sign, relies on Cisco company thought Shu aid chuan project staff free provides has three years technology support, from 2009 began, according to high standards, and high of work thought, and manpower planning, and points step implementation, using school earthquake Hou reconstru

167、ction of opportunities, again planning elementary and middle schools campus network and education city domain network, and local broadcasting network company cooperation, using broadcast TV network, will physi cal fiber laying to each school, to minimum of cost achieved has physical fiber school sch

168、ool pass; Each school construction standards of campus network and network access to all rooms; XX education metropolitan area network center machine room equipment in the Ministry of education standardization management platform, the Central Library of audio-visual e ducation resources, set up a Ch

169、inese teacher education cloud platform, implemented links the two platforms. At present, the citys primary and middle school students to computer 3198, vitality than 10:1; 809 equipment classes through the classroom (primary and secondary); 36 of the campus network. The establishment of an advance d

170、, practical Gigabit educational metropolitan area network, the citys schools have access to educational metropolitan area network, schools have computer networks, closed-cir cuit television network, broadcast networks into the classrooms, realize the triple play. Schools share Internet bandwidth, ca

171、n me et the needs of teaching of the school office and at any time. According to Ministry of education on full started implementation teachi ng points digital education resources full cover project of notification (taught technical letter (2012) 74th,) and XX Province Department of education on issu

172、ed XX province teachi ng points digital education resources full cover project implementation views of notification (chuan taught letter (2013) 18th,) requirements, I city 6 a teachi ng points implementation teaching points digital education resources full cover project, combined I city specific sit

173、uation, developed issued has XX City Burea u on teaching points digital resources full cover project of implementation programme, Established XX, full coverage of digital resources in modern di stance education teachi ng pr oject leading group, XX, chaired the Se cretary for education. E stablished,

174、 digital resources in modern distance education teaching, XX full coverage proje ct group, XX, Direct or of the Center for educational information and equipment chaired Zhu Guiyan, responsible for distance education digital resources covering project work. Projects in XX city school digital resource

175、s in modern distance education teaching full-coverage proje ct leading group, digital resources in modern distance education teaching, and XX full coverage project group leadership and organization, in accordance with the unified arrangement of the whole province, responsible for university educatio

176、n digital resources covering proje ct management and implementation. According to provinces arrangements, I Center has arrangements Gongimprove, security prevention capacity obviously enhanced, security hidden and security accident obviously reduced, effective guarantees information health developme

177、nt. XX E ducation Centre regularly carry out day-to-day network security monitoring information and equipment. By the appropriate technical staff, XX network engine room maintenance staff on site management and maintenance on a regular basis, scheduled viewing of networks, systems, databases and ass

178、ociated equi pment operating conditions, and make a record. Computer lab maintenance managers regularly run a variety of devices in the school information system parameters, server systems and various data backup, so t hat there was a hardware failure in a system crash can resume qui ckly and effici

179、ently. Computer lab maintenance managers establish a network antivirus system, Avira Virus system on a regular basis, and anti-virus software security a ssessment, time to upgrade. Computer lab maintenance management for all equipment in the room a regular dust, replace the old label. Regularly host

180、 servers, network switches, core routing, firewalls, hardware maintenance, such as equi pment failure, should be proce sse d in a timely manner in order to ensure safe and reliable operation of the system. In XX city information and equipment was established within the Centre, educational metropolit

181、an area network center machine room XX. Servers and data stores and applications to set up in XX City metropolitan area network center machine room. WindowsServer2003, windowsServer2008, windowsServer2012, Linux, the operating system, the database for SQL Server2008, Office software, such as Micr os

182、oft Office software. Schools (units) of computer, information system security products for domestic products, incl udi ng the use of 360 and kingsoft Internet security software. XX education metropolitan area network used by the server for HP, firewall and information security product for Huaweiand

183、Cisco products. In their daily work, to publicize related knowledge and information security considerations. Enhanced global awareness of network and information security, and strive to achieve network everyone knows security and virus before the guard, to improve network and information security, e

184、nsure that the XX education system network and i nformation system security. Tracking reporting system requires all parties to strengthen collaboration, work closely with emergency safety plan developed XX education metropolitan area network, regularly carry out emergency drills, and carried out spe

185、cial funds every year to protect the security of information. Annual 2-3 professional training for network managers in the cit y, forming technology with a strong professional and technical team, school network managers on common network failures and be ca pable of solving security issues. Issues th

186、at cannot be resolve d, timely forms of meetings, such as meetings, analysis, and solutions through a meeting, without rolling up the ability to solve problems, and feedba ck to superiors in writing departments to resolve. Through self-examination, we are well aware, relative lack of investment in e

187、ducation, facilities and equi pment for further updates, education development is still uneven, new education concepts need to be further enhanced to some extent and restricting the development of city education. We will take the opportunity of government supervision, to strive for the province educ

188、ation demonstration counties as a drivng force, further increase input in education, efforts to promote thelong wing, and Li Wanfu, and Michael Jenkins, and Che n Jian, and Song and xiaochuanyun, 7 bit comrade participate in province backbone face-to-face or network learning, do each tea chi ng poin

189、ts are has teachers participate in training, October 17, 2013, issued XX city education information and equipment Center on requirements the teachi ng points schoolfor good satellite ground station installation prepared of notification, requirements school related management personnel familiar XX pr

190、 ovince teaching poi nts digital education resources full cover proje ct constructi on management manual, Particularly with regard to installation preparation parts according to the point of XX province full coverage of digital educational resources in the project construction management manual . De

191、vices are able to receive TV signals and IP data, the schools have school training and school-based application to use good. Actively organize implementation of a division of a class, a teacher in one class activity. XX in XX city first to complete full registration of teachers working in this city,

192、 XX, S un class rate of 54 per cent respectively, the forefront. In XX, a division of a class, a class a total ranked first in Division activities, was awarded the national ministerial one, 2 provincial second prize, third prize at the provincial level 3. Actively organize implementation of the e-le

193、arning space the work of everyone. At present, in the open spa ce of public service platform of provincial educational resources teachers number 2444, 83 to the total number of teachers, student number is 6569 of the open space, the citys total stude nts 18.31 to (junior hig h school students in 30

194、above, students not require d), registration number to meet the requirements of teachers and students, in XX in first place. Five, information technol ogy application capability as a means to boost teaching of teachers to use information, Education Bureau of XX title and modern educational technol o

195、gy teacher assessment levels linked to the examination; launched a provinci al model school of modern education technology selecti on, a dvanced unit in education a year (individual) award. o expedite education informatization work, the city established the school running level of supervi sion and a

196、ssessment system. Information education in school performance evaluation, e ducation assessment information work more than to cut weight 10. Practice is a regular room supervision, e ducation information steering, steering, steering with the end, principals of education i nformation into performance

197、 assessment and school level monitoring and evaluation, to develop a scientific, operational education information steering assessment methods, tracking management of education information and applications. By March 2016, 100 of the teachers, I participate d in a national educational technology trai

198、ning for primary and secondary school teachers, the teachers have made to cut 80 primary and middle school teachers educational technology proficiency test certificate. At present , all schools have acce ss to broadband networks. Training classification training of teachers, school teachers, academi

199、c leaders, information technology, teacher training and net work management personnel from the County, within the school back to school training once training is complete. Through this mode of classification training, i nformation technol ogy application capability training of teachers in our city r

200、eached 100. XX series of effective information 数据字典：对所有与系统相关的数据元素的一个有组织的列表，以及精确的、严格的定义，使得用户和系统分析员对于输入、输出、存储成分和中间计算结果有共同的理解。*：数据字典的作用是对数据流图中出现的被命名的图形元素的确切解释。*：数据字典是结构化分析方法的核心。5. 下面不属于软件设计原则的是 ( c ) A.抽象 B. 模块化 C. 自底向上 D. 信息隐蔽6. 程序流程图（PFD ）中的箭头代表的是（b ）A.数据流 B. 控制流 C. 调用关系 D. 组成关系7. 下列工具中为需求分析的常用工具的是(

201、d ) A. PAD B. PFD C. N-S D. DFD 8. 在结构化方法中,软件功能分解属于下列软件开发中的阶段是( c ) A.详细设计 B. 需求分析 C. 总体设计 D. 编程调试9. 软件调试的目的是( b ) A.发现错误 B. 改正错误 C. 改善软件的性能 D. 挖掘软件的潜能10. 软件需求分析阶段的工作, 可以分为四个方面: 需求获取，需求分析，编写需求规格说明书，以及（b ）A.阶段性报告 B. 需求评审 C. 总结 D. 都不正确需求分析方法有：1）结构化需求分析方法；2）面向对象的分析方法。*：需求分析的任务就是导出目标系统的逻辑模型，解决“做什么”的问题。*

202、：需求分析一般分为需求获取、需求分析、 编写需求规格说明书和需求评审四个步骤进行。二. 填空题1. 软件是程序、数据和（文档）的集合 . 2.Jackson方法是一种面向（数据流）的结构化方法3. 软件工程研究的内容主要包括（软件开发）技术和软件工程管理4. 数据流图的类型有（变换型）和事务型5. 软件开发环境是全面支持软件开发全过程的（软件工具）集合第四章参考答案一选择题1A 2. A 3. B 4. B 5. A 6. C 7. B 8. D 9. A 10. B 二 . 填 空 题1) 一 对 多 ( 或1:N) 2) 逻 辑 独 立 性3) 数据 库 管 理 系 统4) 参照完整性 5

203、) 关系第四章数据库设计基础一选择题1. 在数据管理技术的发展过程中，经历了人工管理阶段、文件系统阶段和数据库系统阶段。其中数据独立性最高的阶段是（a ）A.数据库系统 B. 文件系统 C. 人工管理 D. 数据项管理2. 下述关于数据库系统的叙述正确的是( a ) A.数据库系统减少了数据冗余 B. 数据库系统避免了一切冗余C.数据库系统中数据的一致性是指数据类型一致D.数据库系统比文件系统能管理更多的数据3. 数据库系统的核心是( b ) 精选学习资料 - - - - - - - - - 名师归纳总结 - - - - - - -第 4 页，共 10 页management systems

204、and measures establishe d by, and a number of pragmatic, combined part-time workforce education i nformation, the protection of the digital campus construction and sustainable development. Six Bureau attaches great importance to information technology security, infor mation technology security, entr

205、ust XX City Center for educational information and equi pment dedicated to the work. Network security leading group was set up, chaire d by the Education Bureau Chief, head, for XX education Metro-network and information security emergency response leadership. Deputy group leader for XX educational

206、metropolitan area network and information security emergency response coordination, command. The team assist leader and deputy leader, responsible for network XX network security and i nformation . eam. Information security work Conference held each semester, and deployment of information security o

207、f documents issued on a regular basis. Information security assessment is incl uded in the annual index. Strictly implement the information security budget to ensure information security of investment. By XX, education information and equipment Centre XX network network security and information secu

208、rity. According to the information technology security requirements, issued a document requires schools (units) implement, defined the information security guidelines, specific work practices, procedures, and requirements. Clear industry information security incidents (accidents) to detect, report a

209、 nd disposal processes. A ccording to self -examination, the school (units) basic established has network security management system; the school (units) according to this units actual, established has units personnel management, information system room management, and equipment management, and media

210、 management, and network security construction management, and shipped dimensi on management, and service outsourcing, management system; developed has computer and the network of network security responsibility held system, signed has network security responsibility; website of information manageme

211、nt personnel is responsible for confidential management, password management, on computer enjoys independent right, User name and passwor d of the computer for its proprietary, and release of provisions is prohi bited, such as leaks, investigated for responsibility. According to who is in charge of

212、whos in charge, who i s running and who is responsible for, who uses principles of who is in charge of management schools (units) defined the roles and responsibilities of information security, assurance responsibilities to schools. XX city schools (units) total site 20, 19 of which were not classif

213、ied security protection assessment, of which 1 (XX education and resource network) for classified security protection levels, without third-level information systems. otal education i nformation systems 1 (XX education cloud platform), contains features with e-Government, resource library, test data

214、base, mail services, such as e-book s, all intranet services. No for grade protection grading record and evaluation of school (units), requirements the school (units) according to information securi ty grade protection about policy and standard, organization carried out information security grade pr

215、ote ction security management system construction, and technology measures construction and grade evaluation, implementation grade protection system of the requirements, makes information system security management level obviouslyfacility up to 160 million Yuan, according to the standard, high quali

216、ty planning XX educational metropolitan area network realizes Wan Zha okuan to schools, hundreds of megabytes of broadba nd to the table, wire (ie: Web, vi deo, audi o) to the target, electronic whiteboards, multimedia classr ooms, remote interactive video teachi ng system of modern educationalequip

217、ment in the cla ssroom. . Wit h Intel company on XX E ducation City domain network of topic case de sign, relies on Cisco company thought Shu aid chuan project staff free provides has three years technology support, from 2009 began, according to high st andards, and high of work thought, and manpowe

218、r planning, and points step implementation, using school earthquake Hou reconstruction of opportunities, again planning elementary and middle schools campus network and education city domain network, and l ocal broadcasting network company cooperation, using broadcast TV network, will physi cal fibe

219、r laying to each school, to minimum of cost achieved has physical fiber school school pass; Each school construction standards of campus network and network access to all rooms; XX education metropolitan area network center machine room equipment in the Ministry of education standardization manageme

220、nt platform, the Central Library of audio-visual e ducation resources, set up a Chinese teacher education cloud platform, implemented links the two platforms. At present, the citys primary and middle school students to computer 3198, vitality than 10:1; 809 equipment classes through the classroom (p

221、rimary and secondary); 36 of the campus network. The establishment of an advance d, practical Gigabit educational metropolitan area network, the citys schools have access to educational metropolitan area network, schools have computer networks, closed-circuit television network, broadcast networks i

222、nto the classrooms, realize the triple play. Schools share Internet bandwidth, can me et the needs of teaching of the school office and at any time. According to Ministry of education on full started implementation teachi ng points digital education resources full cover project of notification (taug

223、ht technical letter (2012) 74th,) and XX Province Department of education on issued XX province teachi ng points digital education resources full cover project implementation views of notification (chuan taught letter (2013) 18th,) requirements, I city 6 a teachi ng points implementation teaching po

224、ints digital education resources full cover project, combined I city specific situation, developed issued has XX City Burea u on teaching points digital resources full cover project of implementation programme, Established XX, full coverage of digital resources in modern di stance education teachi n

225、g pr oject leading group, XX, chaired the Se cretary for education. E stablished, digital resources in modern distance education teaching, XX full coverage proje ct group, XX, Direct or of the Center for educational information and equipment chaired Zhu Guiyan, responsible for distance education dig

226、ital resources covering project work. Projects in XX city school digital resources in modern distance education teaching full-coverage proje ct leading group, digital resources in modern distance education teaching, and XX full coverage project group leadership and organization, in accordance with t

227、he unified arrangement of the whole province, responsible for university education digital resources covering proje ct management and implementation. According to provinces arrangements, I Center has arrangements Gongimprove, security prevention capacity obviously enhanced, security hidden and secur

228、ity accident obviously reduced, effective guarantees information health development. XX E ducation Centre regularly carry out day-to-day network security monitoring information and equipment. By the appropriate technical staff, XX network engine room maintenance staff on site management and maintena

229、nce on a regular basis, scheduled viewing of networks, systems, databases and associated equi pment operating conditions, and make a record. Computer lab maintenance managers regularly run a variety of devices in the school information system parameters, server systems and various data ba ckup, so t

230、hat there was a hardware failure in a system crash can resume qui ckly and efficiently. Computer lab maintenance managers establish a network antivirus system, Avira Virus system on a regular basis, and anti-virus software security a ssessment, time to upgrade. Computer lab maintenance management fo

231、r all equipment in the room a regular dust, replace the old label. Regularly host servers, network switches, core routing, firewalls, hardware maintenance, such as equi pment failure, should be proce sse d in a timely manner in order to ensure safe and reliable operation of the system. In XX city in

232、formation and equipment was established within the Centre, educational metropolitan area network center machine room XX. Servers and data stores and applications to set up in XX City metropolitan area network center machine room. WindowsServer2003, windowsServer2008, windowsServer2012, Linux, the op

233、erating system, the database for SQL Server2008, Office software, such as Micr osoft Office software. Schools (units) of computer, information system security products for domestic products, incl udi ng the use of 360 and kingsoft Internet security software. XX education metropolitan area network us

234、ed by the server for HP, firewall and information security product for Huaweiand Cisco products. In their daily work, to publicize related knowledge and information security considerations. Enhanced global awareness of network and information security, and strive to achieve network everyone knows se

235、curity and virus before the guard, to improve network and information security, ensure that the XX education system network and i nformation system security. Tracking reporting system requires all parties to strengthen collaboration, work closely with emergency safety plan developed XX education met

236、ropolitan area network, regularly carry out emergency drills, and carried out special funds every year to protect the security of information. Annual 2-3 professional training for network managers in the cit y, forming technology with a strong professional and technical team, school network managers

237、 on common network failures and be ca pable of solving security issues. Issues that cannot be resolve d, timely forms of meetings, such as meetings, analysis, and solutions through a meeting, without rolling up the ability to solve problems, and feedba ck to superiors in writing departments to resol

238、ve. Through self -examination, we are well aware, relative lack of investment in education, facilities and equi pment for further updates, education development is still uneven, new education concepts need to be further enhanced to some extent and restricting the development of city education. We wi

239、ll take the opportunity of government supervision, to strive for the province education demonstration counties as a driving force, further increase input in education, efforts to promote thelong wing, and Li Wanfu, and Michael Jenkins, and Che n Jian, and Song and xiaochuanyun, 7 bit comrade partici

240、pate in province backbone face-to-face or network learning, do each tea chi ng points are has teachers participate in training, October 17, 2013, issued XX city education information and equipmnt Ce nter on requirements the teachi ng points schoolfor good satellite ground station installation prepar

241、ed of notification, requirements school related management personnel familiar XX pr ovince teaching poi nts digital education resources full cover project construction management manual, Particularly with regard to installation preparation parts according to the point of XX province full coverage of

242、 digital educational resources in the project construction management manual . Devices are able to receive TV signals and IP data, the schools have school training and school-based application to use good. Actively organize implementation of a division of a class, a teacher in one class activity. XX

243、 in XX city first to complete full registration of teachers working in this city, XX, S un class rate of 54 per cent respectively, the forefront. In XX, a division of a class, a class a total ranked first in Division activities, was awarded the national ministerial one, 2 provincial second prize, th

244、ird prize at the pr ovincial level 3. Actively organize implementation of the e-learning space the work of everyone. At present, in the open spa ce of public service platform of provincial educational resources teachers number 2444, 83 to the total number of teachers, student number is 6569 of the o

245、pen space, the citys total stude nts 18.31 to (junior hig h school students in 30 above, students not require d), registration number to meet the requirements of teachers and students, in XX in first place. Five, information technol ogy application capability as a means to boost teaching of teachers

246、 to use information, Education Bureau of XX title and modern educational technology teacher assessment levels linked to the examination; launched a provinci al model school of modern education technology selecti on, a dvanced unit in education a year (individual) award. o expedite education informat

247、ization work, the city established the school running level of supervision and assessment system. Information education in school performance evaluation, e ducation assessment information work more than to cut weight 10. Practice is a regular room supervision, e ducation information steering, steeri

248、ng, steering with the end, principals of education i nformation into performance assessment an d school level monitoring and evaluation, to develop a scientific, operational education information steering assessment methods, tracking management of education information and applications. By March 201

249、6, 100 of the teachers, I participate d in a national educational technology training for primary and secondary school teachers, the teachers have made to cut 80 primary and middle school teachers educational technology proficiency test certificate. At present , all schools have acce ss to broadband

250、 networks. Training cla ssification training of teachers, school teachers, academic leaders, information technology, teacher training nd net work management personnel from the County, within the school back to school training once training is complete. Through this mode of classification training, i

251、 nformation technol ogy application capability training of teachers in our city reached 100. XX series of effective information A. 数据库 B. 数据库管理系统 C. 数据模型 D. 软件工具4. 用树形结构来表示实体之间联系的模型称为( b ) A.关系模型 B. 层次模型 C. 网状模型 D. 数据模型5. 关系表中的每一横行称为一个( a ) A.元组 B. 字段 C. 属性 D. 码6. 按条件 f 对关系 R进行选择 , 其关系代数表达式是( c ) A.

252、 R|RB. R| |RC. f(R)D. f （ R）f 7关系数据管理系统能实现的专门关系运包括( b ) A.排序、索引、统计 B. 选择、投影、连接 C. 关联、更新、排序 D. 显示、打印、制表8在关系数据库中，用来表示实体之间联系的是（d ）A.树结构 B. 网结构 C. 线性表 D. 二维表9数据库设计包括两个方面的设计内容，它们是（a ）A.概念设计和逻辑设计 B. 模式设计和内模式设计C.内模式设计和物理设计 D. 结构特性设计和行为特性设计10 将 E-R 图转换到关系模式时，实体与联系都可以表示成（b ）A.属性 B. 关系 C. 键 D. 域二填空题1. 一个项目具有一

253、个项目主管，一个项目主管可管理多个项目, 则实体”项目主管”与实体”项目”的联系属于( 一对多 ( 或 1:N) ) 的联系 . 2. 数据独立性分为逻辑独立性和物理独立性. 当数据的存储结构改变时，其逻辑结构可以不变。因此 ,基于逻辑结构的应用程序不必修改，称为( 逻辑独立性 ) 3. 数据库系统中实现各种数据管理功能的核心软件称为( 数据库管理系统 ) 4. 关系模型的完整性规则是对关系的某种约束条件, 包括实体完整性、 ( 参照完整性 )和自定义完整性. 关系中的数据约束：1）实体完整性约束：要求关系的主键中属性值不能为空值，因为主键是唯一决定元组的，如为空值则其唯一性就成为不可能的了。

254、2）参照完整性约束：关系之间相互关联的基本约束，不允许关系引用不存在的元组，即在关系中的外键要么是所关联关系中实际存在的元组，要么为空值。3）用户定义的完整性约束：反映某一具体应用所涉及的数据必须满足的语义要求。例如某个属性的取值范围在0 100 之间5. 在关系模型中，把数据看成一个二维表，每一个二维表称为一个（关系）习题参考答案第一章参考答案一选择题1C 2. D 3. A 4. B 5. C 6. D 7. B 8. B 9. B 10. A 二. 填空题1) log2n 2) 350 3) DEBFCA 4) N(N-1)/2 5) 3 第二章参考答案一选择题1B 2. A 3. D

255、4. B 5. A 二填空题 1) 重复（或循环） 2) 功能性 3) 封装 4) 实例 5) 继承第三章参考答案精选学习资料 - - - - - - - - - 名师归纳总结 - - - - - - -第 5 页，共 10 页management systems and measures establishe d by, and a number of pragmatic, combined part-time workforce education i nformation, the protection of the digital campus construction and sus

256、tainable development. Six Bureau attaches great importance to information technology security, infor mation technology security, entrust XX City Center for educational information and equi pment dedicated to the work. Network security leading group was set up, chaire d by the Education Burea u Chief

257、, head, for XX education Metro-netw ork and information security emergency response leadership. Deputy group leader for XX educational metropolitan area network and information security emergency response coordination, command. The team assist leader and deputy leader, responsible for network XX net

258、work security and i nformation . eam. Information security work Conference held each semester, and deployment of information security of documents issued on a regular basis. Information security assessment is incl uded in the annual index. Strictly implement the information security budget to ensure

259、 information security of investment. By XX, education information and equipment Centre XX network network security and information security. According to the information technology security requirements, issued a document requires schools (units) implement, defined the information security guideline

260、s, specific work practices, procedures, and requirements. Clear industry information security incidents (accidents) to detect, report a nd disposal processes. A ccording to self -examination, the school (units) basic established has network security management system; the school (units) according to

261、 this units actual, established has units personnel management, information system room management, and equipment management, and media management, and network security construction management, and shipped dimensi on management, and service outsourcing, management system; developed has computer and

262、the network of network security responsibility held system, signed has network security responsibility; website of information management personnel is responsible for confidential management, password management, on computer enjoys independent right, User name and passwor d of the computer for its p

263、roprietary, and release of provisions is prohi bited, such as leaks, investigated for responsibility. According to who is in charge of whos in charge, who i s running and who is responsible for, who uses principles of who is in charge of management schools (units) defined the roles and responsibilit

264、ies of information security, assurance responsibilities to schools. XX city schools (units) total site 20, 19 of which were not classified security protection assessment, of which 1 (XX education and resource network) for classified security protection levels, without third-level information systems

265、. otal education i nformation systems 1 (XX education cloud platform), contains features with e-Government, resource library, test database, mail services, such as e-book s, all intranet services. No for grade protection grading record and evaluation of school (units), requirements the school (units

266、) according to information securi ty grade protection about policy and standard, organization carried out information security grade protection security management system construction, and technology measures constructi on and grade evaluation, implementation grade protection system of the requireme

267、nts, makes information system security management level obviouslyfacility up to 160 million Yuan, according to the standard, high quality planning XX educational metropolitan area network realizes Wan Zha okuan to schools, hundreds of megabytes of broadba nd to the table, wire (ie: Web, vi deo, audi

268、 o) to the target, electronic whiteboards, multimedia classr ooms, remote interactive video teachi ng system of modern educationalequipment in the cla ssroom. . Wit h Intel company on XX E ducation City domain network of topic case de sign, relies on Cisco company thought Shu aid chuan project staff

269、 free provides has three years technology support, from 2009 began, according to high standards, and high of work thought, and manpower planning, and points step implementation, using school earthquake Hou reconstruction of opportunities, again planning elementary and middle schools campus network a

270、nd education city domain network, and local broadcasting network company cooperation, using broadcast TV network, will physi cal fiber laying to each school, to minimum of cost achieved has physical fiber school school pass; Each school construction standards of campus network and network access to

271、all rooms; XX education metropolitan area network center machine room equipment in the Ministry of education standardization management platform, the Central Library of audio-visual e ducation resources, set up a Chinese teacher education cloud platform, implemented links the two platforms. At prese

272、nt, the citys primary and middle school students to computer 3198, vitality than 10:1; 809 equipment classes through the classroom (primary and secondary); 36 of the campus network. The establishment of an advance d, practical Gigabit educational metropolitan area network, the citys schools have acc

273、ess to educational metropolitan area network, schools have computer networks, closed-cir cuit television network, broadcast networks into the classrooms, realize the triple play. Schools share Internet bandwidth, can me et the needs of teaching of the school office and at any time. According to Mini

274、stry of education on full started implementation teachi ng points digital education resources full cover project of notification (taught technical letter (2012) 74th,) and XX Province Department of education on issued XX province teachi ng points digital education resources full cover project implem

275、entation views of notification (chuan taught letter (2013) 18th,) requirements, I city 6 a teachi ng points implementation teaching points digital education resources full cover project, combined I city specific situation, developed issued has XX City Burea u on teaching points digital resources ful

276、l cover project of implementation programme, Established XX, full coverage of digital resources in modern di stance education teachi ng pr oject leading group, XX, chaired the Se cretary for education. E stablished, digital resources in modern distance education teaching, XX full coverage proje ct g

277、roup, XX, Direct or of the Center for educational information and equipment chaired Zhu Guiyan, responsible for distance education digital resources covering project work. Projects in XX city school digital resources in modern distance education teaching full-coverage proje ct leading group, digital

278、 resources in modern distance education teaching, and XX full coverage project group leadership and organization, in accordance with the unified arrangement of the whole province, responsible for university education digital resources covering proje ct management and implementation. According to pro

279、vinces arrangements, I Center has arrangements Gongimprove, security prevention capacity obviously enhanced, security hidden and security accident obviously reduced, effective guarantees information health development. XX E ducation Centre regularly carry out day-to-day network security monitoring i

280、nformation and equipment. By the appropriate technical staff, XX network engine room maintenance staff on site management and maintenance on a regular basis, scheduled viewing of networks, systems, databases and associated equi pment operating conditions, and make a record. Computer lab maintenance

281、managers regularly run a variety of devices in the school information system parameters, server systems and various data backup, so t hat there was a hardware failure in a system crash can resume qui ckly and efficiently. Computer lab maintenance managers establish a network antivirus system, Avira

282、Virus system on a regular basis, and anti-virus software security a ssessment, time to upgrade. Computer lab maintenance management for all equipment in the room a regular dust, replace the old label. Regularly host servers, network switches, core routing, firewalls, hardware maintenance, such as eq

283、ui pment failure, should be proce sse d in a timely manner in order to ensure safe and reliable operation of the system. In XX city information and equipment was established within the Centre, educational metropolitan area network center machine room XX. Servers and data stores and applications to s

284、et up in XX City metropolitan area network center machine room. WindowsServer2003, windowsServer2008, windowsServer2012, Linux, the operating system, the database for SQL Server2008, Office software, such as Micr osoft Office software. Schools (units) of computer, information system security product

285、s for domestic products, incl udi ng the use of 360 and kingsoft Internet security software. XX education metropolitan area network used by the server for HP, firewall and information security product for Huaweiand Cisco products. In their daily work, to publicize related knowledge and information s

286、ecurity considerations. Enhanced global awareness of network and information security, and strive to achieve network everyone knows security and virus before the guard, to improve network and information security, ensure that the XX education system network and i nformation system security. Tracking

287、 reporting system requires all parties to strengthen collaboration, work closely with emergency safety plan developed XX education metropolitan area network, regularly carry out emergency drills, and carried out special funds every year to protect the security of information. Annual 2-3 professional

288、 training for network managers in the cit y, forming technology with a strong professional and technical team, school network managers on common network failures and be ca pable of solving security issues. Issues that cannot be resolve d, timely forms of meetings, such as meetings, analysis, and sol

289、utions through a meeting, without rolling up the ability to solve problems, and feedba ck to superiors in writing departments to resolve. Through self-examination, we are well aware, relative lack of investment in education, facilities and equi pment for further updates, education development is sti

290、ll uneven, new education concepts need to be further enhanced to some extent and restricting the development of city education. We will take the opportunity of government supervision, to strive for the province education demonstration counties as a drivng force, further increase input in education,

291、efforts to promote thelong wing, and Li Wanfu, and Michael Jenkins, and Che n Jian, and Song and xiaochuanyun, 7 bit comrade participate in province backbone face-to-face or network learning, do each tea chi ng points are has teachers participate in training, October 17, 2013, issued XX city educati

292、on information and equipment Center on requirements the teachi ng points schoolfor good satellite ground station installation prepared of notification, requirements school related management personnel familiar XX pr ovince teaching poi nts digital education resources full cover proje ct constructi o

293、n management manual, Particularly with regard to installation preparation parts according to the point of XX province full coverage of digital educational resources in the project construction management manual . Devices are able to receive TV signals and IP data, the schools have school training an

294、d school-based application to use good. Actively organize implementation of a division of a class, a teacher in one class activity. XX in XX city first to complete full registration of teachers working in this city, XX, S un class rate of 54 per cent respectively, the forefront. In XX, a division of

295、 a class, a class a total ranked first in Division activities, was awarded the national ministerial one, 2 provincial second prize, third prize at the provincial level 3. Actively organize implementation of the e-learning space the work of everyone. At present, in the open spa ce of public service p

296、latform of provincial educational resources teachers number 2444, 83 to the total number of teachers, student number is 6569 of the open space, the citys total stude nts 18.31 to (junior hig h school students in 30 above, students not require d), registration number to meet the requirements of teach

297、ers and students, in XX in first place. Five, information technol ogy application capability as a means to boost teaching of teachers to use information, Education Bureau of XX title and modern educational technol ogy teacher assessment levels linked to the examination; launched a provinci al model

298、school of modern education technology selecti on, a dvanced unit in education a year (individual) award. o expedite education informatization work, the city established the school running level of supervi sion and assessment system. Information education in school performance evaluation, e ducation

299、assessment information work more than to cut weight 10. Practice is a regular room supervision, e ducation information steering, steering, steering with the end, principals of education i nformation into performance assessment and school level monitoring and evaluation, to develop a scientific, oper

300、ational education information steering assessment methods, tracking management of education information and applications. By March 2016, 100 of the teachers, I participate d in a national educational technology training for primary and secondary school teachers, the teachers have made to cut 80 prim

301、ary and middle school teachers educational technology proficiency test certificate. At present , all schools have acce ss to broadband networks. Training classification training of teachers, school teachers, academic leaders, information technology, teacher training and net work management personnel

302、 from the County, within the school back to school training once training is complete. Through this mode of classification training, i nformation technol ogy application capability training of teachers in our city reached 100. XX series of effective information 一选择题1D 2. D 3. A 4. A 5. C 6. B 7. D 8

303、. C 9. B 10. B 二 填空题 1) 文档 2) 数据流 3) 软件开发 4) 变换型 5) 软件工具第四章参考答案一选择题1A 2. A 3. B 4. B 5. A 6. C 7. B 8. D 9. A 10. B 二 . 填 空 题1) 一 对 多 ( 或1:N) 2) 逻 辑 独 立 性3) 数据 库 管 理 系 统4) 参照完整性 5) 关系全国计算机等级考试二级公共基础最新题库( 二) 一. 填空题1) 算法的复杂度主要包括_复杂度和空间复杂度。答：时间(2) 数据的逻辑结构在计算机存储空间中的存放形式称为数据的_。答：模式 #逻辑模式 #概念模式(3) 若按功能划分，

304、软件测试的方法通常分为白盒测试方法和_测试方法。答：黑盒(4) 如果一个工人可管理多个设施，而一个设施只被一个工人管理，则实体 工人 与实体 设备 之间存在 _联系。答：一对多#1：N#1:n (5) 关系数据库管理系统能实现的专门关系运算包括选择、连接和_。答：投影(6) 在先左后右的原则下，根据访问根结点的次序，二叉树的遍历可以分为三种：前序遍历、_遍历和后序遍历。答：中序(7) 结构化程序设计方法的主要原则可以概括为自顶向下、逐步求精、_和限制使用goto 语句。答：模块化(8) 软件的调试方法主要有：强行排错法、_和原因排除法。答：回溯法(9) 数据库系统的三级模式分别为_模式、内部级

305、模式与外部级模式。答：概念#概念级(10) 数据字典是各类数据描述的集合，它通常包括5 个部分，即数据项、数据结构、数据流、 _和处理过程。答：数据存储(11) 设一棵完全二叉树共有500 个结点，则在该二叉树中有_个叶子结点。答：250 (12) 在最坏 情况下，冒 泡排序的时间 复杂度为_ 。答：n(n-1)/2#n*(n-1)/2#O(n(n-1)/2)#O(n*(n-1)/2) (13) 面向对象的程序设计方法中涉及的对象是系统中用来描述客观事物的一个_。 答：实体(14) 软件的需求分析阶段的工作，可以概括为四个方面：_、需求分析、编写需求规格说明书和需求评审。答：需求获取(15)

306、_是数据库应用的核心。答：数据库设计(16) 数据结构包括数据的_结构和数据的存储结构。答：逻辑(17) 软件工程研究的内容主要包括：_技术和软件工程管理。答：软件开发(18) 与结构化需求分析方法相对应的是_方法。答：结构化设计(19) 关系模型的完整性规则是对关系的某种约束条件，包括实体完整性、_和自定义完整性。答：参照完整性(20) 数据模型按不同的应用层次分为三种类型，它们是_数据模型、逻辑数据模型和精选学习资料 - - - - - - - - - 名师归纳总结 - - - - - - -第 6 页，共 10 页management systems and measures estab

307、lishe d by, and a number of pragmatic, combined part-time workforce education i nformation, the protection of the digital campus construction and sustainable development. Six Bureau attaches great importance to information technology security, infor mation technology security, entrust XX City Center

308、 for educational information and equi pment dedicated to the work. Network security leading group was set up, chaire d by the Education Bureau Chief, head, for XX education Metro-network and information security emergency response leadership. Deputy group leader for XX educational metropolitan area

309、network and information security emergency response coordination, command. The team assist leader and deputy leader, responsible for network XX network security and i nformation . eam. Information security work Conference held each semester, and deployment of information security of documents issued

310、 on a regular basis. Information security assessment is incl uded in the annual index. Strictly implement the information security budget to ensure information security of investment. By XX, education information and equipment Centre XX network network security and information security. According to

311、 the information technology security requirements, issued a document requires schools (units) implement, defined the information security guidelines, specific work practices, procedures, and requirements. Clear industry information security incidents (accidents) to detect, report a nd disposal proce

312、sses. A ccording to self -examination, the school (units) basic established has network security management system; the school (units) according to this units actual, established has units personnel management, information system room management, and equipment management, and media management, and n

313、etwork security construction management, and shipped dimensi on management, and service outsourcing, management system; developed has computer and the network of network security responsibility held system, signed has network security responsibility; website of information management personnel is re

314、sponsible for confidential management, password management, on computer enjoys independent right, User name and passwor d of the computer for its proprietary, and release of provisions is prohi bited, such as leaks, investigated for responsibility. According to who is in charge of whos in charge, wh

315、o i s running and who is responsible for, who uses principles of who is in charge of management schools (units) defined the roles and responsibilities of information security, assurance responsibilities to schools. XX city schools (units) total site 20, 19 of which were not classified security prote

316、ction assessment, of which 1 (XX education and resource network) for classified security protection levels, without third-level information systems. otal education i nformation systems 1 (XX education cloud platform), contains features with e-Government, resource library, test database, mail service

317、s, such as e-book s, all intranet services. No for grade protection grading record and evaluation of school (units), requirements the school (units) according to information securi ty grade protection about policy and standard, organization carried out information security grade prote ction security

318、 management system construction, and technology measures construction and grade evaluation, implementation grade protection system of the requirements, makes information system security management level obviouslyfacility up to 160 million Yuan, according to the standard, high quality planning XX edu

319、cational metropolitan area network realizes Wan Zha okuan to schools, hundreds of megabytes of broadba nd to the table, wire (ie: Web, vi deo, audi o) to the target, electronic whiteboards, multimedia classr ooms, remote interactive video teachi ng system of modern educationalequipment in the cla ss

320、room. . Wit h Intel company on XX E ducation City domain network of topic case de sign, relies on Cisco company thought Shu aid chuan project staff free provides has three years technology support, from 2009 began, according to high st andards, and high of work thought, and manpower planning, and po

321、ints step implementation, using school earthquake Hou reconstruction of opportunities, again planning elementary and middle schools campus network and education city domain network, and l ocal broadcasting network company cooperation, using broadcast TV network, will physi cal fiber laying to each s

322、chool, to minimum of cost achieved has physical fiber school school pass; Each school construction standards of campus network and network access to all rooms; XX education metropolitan area network center machine room equipment in the Ministry of education standardization management platform, the C

323、entral Library of audio-visual e ducation resources, set up a Chinese teacher education cloud platform, implemented links the two platforms. At present, the citys primary and middle school students to computer 3198, vitality than 10:1; 809 equipment classes through the classroom (primary and seconda

324、ry); 36 of the campus network. The establishment of an advance d, practical Gigabit educational metropolitan area network, the citys schools have access to educational metropolitan area network, schools have computer networks, closed-circuit television network, broadcast networks into the classrooms

325、, realize the triple play. Schools share Internet bandwidth, can me et the needs of teaching of the school office and at any time. According to Ministry of education on full started implementation teachi ng points digital education resources full cover project of notification (taught technical lette

326、r (2012) 74th,) and XX Province Department of education on issued XX province teachi ng points digital education resources full cover project implementation views of notification (chuan taught letter (2013) 18th,) requirements, I city 6 a teachi ng points implementation teaching points digital educa

327、tion resources full cover project, combined I city specific situation, developed issued has XX City Burea u on teaching points digital resources full cover project of implementation programme, Established XX, full coverage of digital resources in modern di stance education teachi ng pr oject leading

328、 group, XX, chaired the Se cretary for education. E stablished, digital resources in modern distance education teaching, XX full coverage proje ct group, XX, Direct or of the Center for educational information and equipment chaired Zhu Guiyan, responsible for distance education digital resources cov

329、ering project work. Projects in XX city school digital resources in modern distance education teaching full-coverage proje ct leading group, digital resources in modern distance education teaching, and XX full coverage project group leadership and organization, in accordance with the unified arrange

330、ment of the whole province, responsible for university education digital resources covering proje ct management and implementation. According to provinces arrangements, I Center has arrangements Gongimprove, security prevention capacity obviously enhanced, security hidden and security accident obvio

331、usly reduced, effective guarantees information health development. XX E ducation Centre regularly carry out day-to-day network security monitoring information and equipment. By the appropriate technical staff, XX network engine room maintenance staff on site management and maintenance on a regular b

332、asis, scheduled viewing of networks, systems, databases and associated equi pment operating conditions, and make a record. Computer lab maintenance managers regularly run a variety of devices in the school information system parameters, server systems and various data ba ckup, so that there was a ha

333、rdware failure in a system crash can resume qui ckly and efficiently. Computer lab maintenance managers establish a network antivirus system, Avira Virus system on a regular basis, and anti-virus software security a ssessment, time to upgrade. Computer lab maintenance management for all equipment in

334、 the room a regular dust, replace the old label. Regularly host servers, network switches, core routing, firewalls, hardware maintenance, such as equi pment failure, should be proce sse d in a timely manner in order to ensure safe and reliable operation of the system. In XX city information and equi

335、pment was established within the Centre, educational metropolitan area network center machine room XX. Servers and data stores and applications to set up in XX City metropolitan area network center machine room. WindowsServer2003, windowsServer2008, windowsServer2012, Linux, the operating system, th

336、e database for SQL Server2008, Office software, such as Micr osoft Office software. Schools (units) of computer, information system security products for domestic products, incl udi ng the use of 360 and kingsoft Internet security software. XX education metropolitan area network used by the server f

337、or HP, firewall and information security product for Huaweiand Cisco products. In their daily work, to publicize related knowledge and information security considerations. Enhanced global awareness of network and information security, and strive to achieve network everyone knows security and virus b

338、efore the guard, to improve network and information security, ensure that the XX education system network and i nformation system security. Tracking reporting system requires all parties to strengthen collaboration, work closely with emergency safety plan developed XX education metropolitan area net

339、work, regularly carry out emergency drills, and carried out special funds every year to protect the security of information. Annual 2-3 professional training for network managers in the cit y, forming technology with a strong professional and technical team, school network managers on common network

340、 failures and be ca pable of solving security issues. Issues that cannot be resolve d, timely forms of meetings, such as meetings, analysis, and solutions through a meeting, without rolling up the ability to solve problems, and feedba ck to superiors in writing departments to resolve. Through self -

341、examination, we are well aware, relative lack of investment in education, facilities and equi pment for further updates, education development is still uneven, new education concepts need to be further enhanced to some extent and restricting the development of city education. We will take the opport

342、unity of government supervision, to strive for the province education demonstration counties as a driving force, further increase input in education, efforts to promote thelong wing, and Li Wanfu, and Michael Jenkins, and Che n Jian, and Song and xiaochuanyun, 7 bit comrade participate in province b

343、ackbone face-to-face or network learning, do each tea chi ng points are has teachers participate in training, October 17, 2013, issued XX city education information and equipmnt Ce nter on requirements the teachi ng points schoolfor good satellite ground station installation prepared of notification

344、, requirements school related management personnel familiar XX pr ovince teaching poi nts digital education resources full cover project construction management manual, Particularly with regard to installation preparation parts according to the point of XX province full coverage of digital education

345、al resources in the project construction management manual . Devices are able to receive TV signals and IP data, the schools have school training and school-based application to use good. Actively organize implementation of a division of a class, a teacher in one class activity. XX in XX city first

346、to complete full registration of teachers working in this city, XX, S un class rate of 54 per cent respectively, the forefront. In XX, a division of a class, a class a total ranked first in Division activities, was awarded the national ministerial one, 2 provincial second prize, third prize at the p

347、r ovincial level 3. Actively organize implementation of the e-learning space the work of everyone. At present, in the open spa ce of public service platform of provincial educational resources teachers number 2444, 83 to the total number of teachers, student number is 6569 of the open space, the cit

348、ys total stude nts 18.31 to (junior hig h school students in 30 above, students not require d), registration number to meet the requirements of teachers and students, in XX in first place. Five, information technol ogy application capability as a means to boost teaching of teachers to use informatio

349、n, Education Bureau of XX title and modern educational technology teacher assessment levels linked to the examination; launched a provinci al model school of modern education technology selecti on, a dvanced unit in education a year (individual) award. o expedite education informatization work, the

350、city established the school running level of supervision and assessment system. Information education in school performance evaluation, e ducation assessment information work more than to cut weight 10. Practice is a regular room supervision, e ducation information steering, steering, steering with

351、the end, principals of education i nformation into performance assessment an d school level monitoring and evaluation, to develop a scientific, operational education information steering assessment methods, tracking management of education information and applications. By March 2016, 100 of the teac

352、hers, I participate d in a national educational technology training for primary and secondary school teachers, the teachers have made to cut 80 primary and middle school teachers educational technology proficiency test certificate. At present , all schools have acce ss to broadband networks. Trainin

353、g cla ssification training of teachers, school teachers, academic leaders, information technology, teacher training nd net work management personnel from the County, within the school back to school training once training is complete. Through this mode of classification training, i nformation techno

354、l ogy application capability training of teachers in our city reached 100. XX series of effective information 物理数据模型。答：概念选择题(21) 算法的空间复杂度是指_。(D) A. 算法程序的长度B. 算法程序中的指令条数C. 算法程序所占的存储空间D. 算法执行过程中所需要的存储空间(22) 下列关于栈的叙述中正确的是_。(D) A. 在栈中只能插入数据B. 在栈中只能删除数据C. 栈是先进先出的线性表D. 栈是先进后出的线性表(23) 在深度为5 的满二叉树中，叶子结点的个数为

355、_。(C) A. 32 B. 31 C. 16 D. 15 (24) 对建立良好的程序设计风格，下面描述正确的是_。(A) A. 程序应简单、清晰、可读性好B. 符号名的命名要符合语法C. 充分考虑程序的执行效率D. 程序的注释可有可无(25) 下面对对象概念描述错误的是_。(A) A. 任何对象都必须有继承性B. 对象是属性和方法的封装体C. 对象间的通讯* 消息传递 D. 操作是对象的动态性属性(26) 下面不属于软件工程的3 个要素的是 _。(D) A. 工具 B. 过程 C. 方法 D. 环境(27) 程序流程图（PFD ）中的箭头代表的是_。(B) A. 数据流 B. 控制流 C.

356、调用关系D. 组成关系(28) 在数据管理技术的发展过程中，经历了人工管理阶段、文件系统阶段和数据库系统阶段。其中数据独立性最高的阶段是_。(A) A. 数据库系统B. 文件系统C. 人工管理D. 数据项管理(29) 用树形结构来表示实体之间联系的模型称为_。(B) A. 关系模型B. 层次模型C. 网状模型D. 数据模型(30) 关系数据库管理系统能实现的专门关系运算包括_。(B) A. 排序、索引、统计B. 选择、投影、连接C. 关联、更新、排序D. 显示、打印、制表(31) 算法一般都可以用哪几种控制结构组合而成_。(D) A. 循环、分支、递归B. 顺序、循环、嵌套C. 循环、递归、选

357、择D. 顺序、选择、循环(32) 数据的存储结构是指_。(B) A. 数据所占的存储空间量B. 数据的逻辑结构在计算机中的表示C. 数据在计算机中的顺序存储方式D. 存储在外存中的数据(33) 设有下列二叉树：对此二叉树中序遍历的结果为_。(B) A. ABCDEF B. DBEAFC C. ABDECF D. DEBFCA (34) 在面向对象方法中，一个对象请求另一对象为其服务的方式是通过发送_。(D) A. 调用语句B. 命令 C. 口令 D. 消息(35) 检查软件产品是否符合需求定义的过程称为_。(A) A. 确认测试B. 集成测试C. 验证测试D. 验收测试(36) 下列工具中属于

358、需求分析常用工具的是_。(D) 精选学习资料 - - - - - - - - - 名师归纳总结 - - - - - - -第 7 页，共 10 页management systems and measures establishe d by, and a number of pragmatic, combined part-time workforce education i nformation, the protection of the digital campus construction and sustainable development. Six Bureau attaches

359、 great importance to information technology security, infor mation technology security, entrust XX City Center for educational information and equi pment dedicated to the work. Network security leading group was set up, chaire d by the Education Burea u Chief, head, for XX education Metro-netw ork a

360、nd information security emergency response leadership. Deputy group leader for XX educational metropolitan area network and information security emergency response coordination, command. The team assist leader and deputy leader, responsible for network XX network security and i nformation . eam. Inf

361、ormation security work Conference held each semester, and deployment of information security of documents issued on a regular basis. Information security assessment is incl uded in the annual index. Strictly implement the information security budget to ensure information security of investment. By X

362、X, education information and equipment Centre XX network network security and information security. According to the information technology security requirements, issued a document requires schools (units) implement, defined the information security guidelines, specific work practices, procedures, a

363、nd requirements. Clear industry information security incidents (accidents) to detect, report a nd disposal processes. A ccording to self -examination, the school (units) basic established has network security management system; the school (units) according to this units actual, established has units

364、 personnel management, information system room management, and equipment management, and media management, and network security construction management, and shipped dimensi on management, and service outsourcing, management system; developed has computer and the network of network security responsib

365、ility held system, signed has network security responsibility; website of information management personnel is responsible for confidential management, password management, on computer enjoys independent right, User name and passwor d of the computer for its proprietary, and release of provisions is

366、prohi bited, such as leaks, investigated for responsibility. According to who is in charge of whos in charge, who i s running and who is responsible for, who uses principles of who is in charge of management schools (units) defined the roles and responsibilities of information security, assurance re

367、sponsibilities to schools. XX city schools (units) total site 20, 19 of which were not classified security protection assessment, of which 1 (XX education and resource network) for classified security protection levels, without third-level information systems. otal education i nformation systems 1 (

368、XX education cloud platform), contains features with e-Government, resource library, test database, mail services, such as e-book s, all intranet services. No for grade protection grading record and evaluation of school (units), requirements the school (units) according to information securi ty grad

369、e protection about policy and standard, organization carried out information security grade protection security management system construction, and technology measures constructi on and grade evaluation, implementation grade protection system of the requirements, makes information system security ma

370、nagement level obviouslyfacility up to 160 million Yuan, according to the standard, high quality planning XX educational metropolitan area network realizes Wan Zha okuan to schools, hundreds of megabytes of broadba nd to the table, wire (ie: Web, vi deo, audi o) to the target, electronic whiteboards

371、, multimedia classr ooms, remote interactive video teachi ng system of modern educationalequipment in the cla ssroom. . Wit h Intel company on XX E ducation City domain network of topic case de sign, relies on Cisco company thought Shu aid chuan project staff free provides has three years technology

372、 support, from 2009 began, according to high standards, and high of work thought, and manpower planning, and points step implementation, using school earthquake Hou reconstruction of opportunities, again planning elementary and middle schools campus network and education city domain network, and loc

373、al broadcasting network company cooperation, using broadcast TV network, will physi cal fiber laying to each school, to minimum of cost achieved has physical fiber school school pass; Each school construction standards of campus network and network access to all rooms; XX education metropolitan area

374、 network center machine room equipment in the Ministry of education standardization management platform, the Central Library of audio-visual e ducation resources, set up a Chinese teacher education cloud platform, implemented links the two platforms. At present, the citys primary and middle school s

375、tudents to computer 3198, vitality than 10:1; 809 equipment classes through the classroom (primary and secondary); 36 of the campus network. The establishment of an advance d, practical Gigabit educational metropolitan area network, the citys schools have access to educational metropolitan area netw

376、ork, schools have computer networks, closed-cir cuit television network, broadcast networks into the classrooms, realize the triple play. Schools share Internet bandwidth, can me et the needs of teaching of the school office and at any time. According to Ministry of education on full started impleme

377、ntation teachi ng points digital education resources full cover project of notification (taught technical letter (2012) 74th,) and XX Province Department of education on issued XX province teachi ng points digital education resources full cover project implementation views of notification (chuan tau

378、ght letter (2013) 18th,) requirements, I city 6 a teachi ng points implementation teaching points digital education resources full cover project, combined I city specific situation, developed issued has XX City Burea u on teaching points digital resources full cover project of implementation program

379、me, Established XX, full coverage of digital resources in modern di stance education teachi ng pr oject leading group, XX, chaired the Se cretary for education. E stablished, digital resources in modern distance education teaching, XX full coverage proje ct group, XX, Direct or of the Center for edu

380、cational information and equipment chaired Zhu Guiyan, responsible for distance education digital resources covering project work. Projects in XX city school digital resources in modern distance education teaching full-coverage proje ct leading group, digital resources in modern distance education t

381、eaching, and XX full coverage project group leadership and organization, in accordance with the unified arrangement of the whole province, responsible for university education digital resources covering proje ct management and implementation. According to provinces arrangements, I Center has arrange

382、ments Gongimprove, security prevention capacity obviously enhanced, security hidden and security accident obviously reduced, effective guarantees information health development. XX E ducation Centre regularly carry out day-to-day network security monitoring information and equipment. By the appropri

383、ate technical staff, XX network engine room maintenance staff on site management and maintenance on a regular basis, scheduled viewing of networks, systems, databases and associated equi pment operating conditions, and make a record. Computer lab maintenance managers regularly run a variety of devic

384、es in the school information system parameters, server systems and various data backup, so t hat there was a hardware failure in a system crash can resume qui ckly and efficiently. Computer lab maintenance managers establish a network antivirus system, Avira Virus system on a regular basis, and anti

385、-virus software security a ssessment, time to upgrade. Computer lab maintenance management for all equipment in the room a regular dust, replace the old label. Regularly host servers, network switches, core routing, firewalls, hardware maintenance, such as equi pment failure, should be proce sse d i

386、n a timely manner in order to ensure safe and reliable operation of the system. In XX city information and equipment was established within the Centre, educational metropolitan area network center machine room XX. Servers and data stores and applications to set up in XX City metropolitan area networ

387、k center machine room. WindowsServer2003, windowsServer2008, windowsServer2012, Linux, the operating system, the database for SQL Server2008, Office software, such as Micr osoft Office software. Schools (units) of computer, information system security products for domestic products, incl udi ng the

388、use of 360 and kingsoft Internet security software. XX education metropolitan area network used by the server for HP, firewall and information security product for Huaweiand Cisco products. In their daily work, to publicize related knowledge and information security considerations. Enhanced global a

389、wareness of network and information security, and strive to achieve network everyone knows security and virus before the guard, to improve network and information security, ensure that the XX education system network and i nformation system security. Tracking reporting system requires all parties to

390、 strengthen collaboration, work closely with emergency safety plan developed XX education metropolitan area network, regularly carry out emergency drills, and carried out special funds every year to protect the security of information. Annual 2-3 professional training for network managers in the cit

391、 y, forming technology with a strong professional and technical team, school network managers on common network failures and be ca pable of solving security issues. Issues that cannot be resolve d, timely forms of meetings, such as meetings, analysis, and solutions through a meeting, without rolling

392、 up the ability to solve problems, and feedba ck to superiors in writing departments to resolve. Through self-examination, we are well aware, relative lack of investment in education, facilities and equi pment for further updates, education development is still uneven, new education concepts need to

393、 be further enhanced to some extent and restricting the development of city education. We will take the opportunity of government supervision, to strive for the province education demonstration counties as a drivng force, further increase input in education, efforts to promote thelong wing, and Li W

394、anfu, and Michael Jenkins, and Che n Jian, and Song and xiaochuanyun, 7 bit comrade participate in province backbone face-to-face or network learning, do each tea chi ng points are has teachers participate in training, October 17, 2013, issued XX city education information and equipment Center on re

395、quirements the teachi ng points schoolfor good satellite ground station installation prepared of notification, requirements school related management personnel familiar XX pr ovince teaching poi nts digital education resources full cover proje ct constructi on management manual, Particularly with re

396、gard to installation preparation parts according to the point of XX province full coverage of digital educational resources in the project construction management manual . Devices are able to receive TV signals and IP data, the schools have school training and school-based application to use good. A

397、ctively organize implementation of a division of a class, a teacher in one class activity. XX in XX city first to complete full registration of teachers working in this city, XX, S un class rate of 54 per cent respectively, the forefront. In XX, a division of a class, a class a total ranked first in

398、 Division activities, was awarded the national ministerial one, 2 provincial second prize, third prize at the provincial level 3. Actively organize implementation of the e-learning space the work of everyone. At present, in the open spa ce of public service platform of provincial educational resourc

399、es teachers number 2444, 83 to the total number of teachers, student number is 6569 of the open space, the citys total stude nts 18.31 to (junior hig h school students in 30 above, students not require d), registration number to meet the requirements of teachers and students, in XX in first place. F

400、ive, information technol ogy application capability as a means to boost teaching of teachers to use information, Education Bureau of XX title and modern educational technol ogy teacher assessment levels linked to the examination; launched a provinci al model school of modern education technology sel

401、ecti on, a dvanced unit in education a year (individual) award. o expedite education informatization work, the city established the school running level of supervi sion and assessment system. Information education in school performance evaluation, e ducation assessment information work more than to

402、cut weight 10. Practice is a regular room supervision, e ducation information steering, steering, steering with the end, principals of education i nformation into performance assessment and school level monitoring and evaluation, to develop a scientific, operational education information steering as

403、sessment methods, tracking management of education information and applications. By March 2016, 100 of the teachers, I participate d in a national educational technology training for primary and secondary school teachers, the teachers have made to cut 80 primary and middle school teachers educationa

404、l technology proficiency test certificate. At present , all schools have acce ss to broadband networks. Training classification training of teachers, school teachers, academic leaders, information technology, teacher training and net work management personnel from the County, within the school back

405、to school training once training is complete. Through this mode of classification training, i nformation technol ogy application capability training of teachers in our city reached 100. XX series of effective information A. PAD B. PFD C. N-S D. DFD (37) 下面不属于软件设计原则的是_。(C) A. 抽象 B. 模块化 C. 自底向上D. 信息隐蔽

406、(38) 索引属于 _。(B) A. 模式 B. 内模式 C. 外模式 D. 概念模式(39) 在关系数据库中，用来表示实体之间联系的是_。(D) A. 树结构 B. 网结构 C. 线性表 D. 二维表(40) 将 E-R 图转换到关系模式时，实体与联系都可以表示成_。(B) A. 属性 B. 关系 C. 键 D. 域(41) 在下列选项中，哪个不是一个算法一般应该具有的基本特征_。 (C) A. 确定性 B. 可行性 C. 无穷性 D. 拥有足够的情报(42) 希尔排序法属于哪一种类型的排序法_。(B) A. 交换类排序法B. 插入类排序法C. 选择类排序法D. 建堆排序法(43) 下列关于

407、队列的叙述中正确的是_。(C) A. 在队列中只能插入数据B. 在队列中只能删除数据C. 队列是先进先出的线性表D. 队列是先进后出的线性表(44) 对长度为N的线性表进行顺序查找，在最坏情况下所需要的比较次数为_。(B) A. N+1 B. N C. (N+1)/2 D. N/2 (45) 信息隐蔽的概念与下述哪一种概念直接相关_。(B) A. 软件结构定义B. 模块独立性C. 模块类型划分D. 模拟耦合度(46) 面向对象的设计方法与传统的的面向过程的方法有本质不同，它的基本原理是_。(C) A. 模拟现实世界中不同事物之间的联系B. 强调模拟现实世界中的算法而不强调概念C. 使用现实世界

408、的概念抽象地思考问题从而自然地解决问题D. 鼓励开发者在软件开发的绝大部分中都用实际领域的概念去思考(47) 在结构化方法中，软件功能分解属于下列软件开发中的阶段是_。(C) A. 详细设计B. 需求分析C. 总体设计D. 编程调试(48) 软件调试的目的是_。(B) A. 发现错误B. 改正错误C. 改善软件的性能D. 挖掘软件的潜能(49) 按条件 f 对关系 R进行选择，其关系代数表达式为_。(C) A. R|X|RB. R|X|Rf C. f(R)D. f(R)(50) 数据库概念设计的过程中，视图设计一般有三种设计次序，以下各项中不对的是_。(D) A. 自顶向下B. 由底向上C.

409、由内向外D. 由整体到局部(51) 在计算机中，算法是指_。(C) A. 查询方法B. 加工方法C. 解题方案的准确而完整的描述D. 排序方法(52) 栈和队列的共同点是_。(C) A. 都是先进后出B. 都是先进先出C. 只允许在端点处插入和删除元素D. 没有共同点(53) 已知二叉树后序遍历序列是dabec，中序遍历序列是debac，它的前序遍历序列是_。(A) A. cedbaB. acbedC. decabD. deabc 精选学习资料 - - - - - - - - - 名师归纳总结 - - - - - - -第 8 页，共 10 页management systems and me

410、asures establishe d by, and a number of pragmatic, combined part-time workforce education i nformation, the protection of the digital campus construction and sustainable development. Six Bureau attaches great importance to information technology security, infor mation technology security, entrust XX

411、 City Center for educational information and equi pment dedicated to the work. Network security leading group was set up, chaire d by the Education Bureau Chief, head, for XX education Metro-network and information security emergency response leadership. Deputy group leader for XX educational metrop

412、olitan area network and information security emergency response coordination, command. The team assist leader and deputy leader, responsible for network XX network security and i nformation . eam. Information security work Conference held each semester, and deployment of information security of docu

413、ments issued on a regular basis. Information security assessment is incl uded in the annual index. Strictly implement the information security budget to ensure information security of investment. By XX, education information and equipment Centre XX network network security and information security.

414、According to the information technology security requirements, issued a document requires schools (units) implement, defined the information security guidelines, specific work practices, procedures, and requirements. Clear industry information security incidents (accidents) to detect, report a nd di

415、sposal processes. A ccording to self -examination, the school (units) basic established has network security management system; the school (units) according to this units actual, established has units personnel management, information system room management, and equipment management, and media manag

416、ement, and network security construction management, and shipped dimensi on management, and service outsourcing, management system; developed has computer and the network of network security responsibility held system, signed has network security responsibility; website of information management per

417、sonnel is responsible for confidential management, password management, on computer enjoys independent right, User name and passwor d of the computer for its proprietary, and release of provisions is prohi bited, such as leaks, investigated for responsibility. According to who is in charge of whos i

418、n charge, who i s running and who is responsible for, who uses principles of who is in charge of management schools (units) defined the roles and responsibilities of information security, assurance responsibilities to schools. XX city schools (units) total site 20, 19 of which were not classified se

419、curity protection assessment, of which 1 (XX education and resource network) for classified security protection levels, without third-level information systems. otal education i nformation systems 1 (XX education cloud platform), contains features with e-Government, resource library, test database,

420、mail services, such as e-book s, all intranet services. No for grade protection grading record and evaluation of school (units), requirements the school (units) according to information securi ty grade protection about policy and standard, organization carried out information security grade prote ct

421、ion security management system construction, and technology measures construction and grade evaluation, implementation grade protection system of the requirements, makes information system security management level obviouslyfacility up to 160 million Yuan, according to the standard, high quality pla

422、nning XX educational metropolitan area network realizes Wan Zha okuan to schools, hundreds of megabytes of broadba nd to the table, wire (ie: Web, vi deo, audi o) to the target, electronic whiteboards, multimedia classr ooms, remote interactive video teachi ng system of modern educationalequipment i

423、n the cla ssroom. . Wit h Intel company on XX E ducation City domain network of topic case de sign, relies on Cisco company thought Shu aid chuan project staff free provides has three years technology support, from 2009 began, according to high st andards, and high of work thought, and manpower plan

424、ning, and points step implementation, using school earthquake Hou reconstruction of opportunities, again planning elementary and middle schools campus network and education city domain network, and l ocal broadcasting network company cooperation, using broadcast TV network, will physi cal fiber layi

425、ng to each school, to minimum of cost achieved has physical fiber school school pass; Each school construction standards of campus network and network access to all rooms; XX education metropolitan area network center machine room equipment in the Ministry of education standardization management pla

426、tform, the Central Library of audio-visual e ducation resources, set up a Chinese teacher education cloud platform, implemented links the two platforms. At present, the citys primary and middle school students to computer 3198, vitality than 10:1; 809 equipment classes through the classroom (primary

427、 and secondary); 36 of the campus network. The establishment of an advance d, practical Gigabit educational metropolitan area network, the citys schools have access to educational metropolitan area network, schools have computer networks, closed-circuit television network, broadcast networks into th

428、e classrooms, realize the triple play. Schools share Internet bandwidth, can me et the needs of teaching of the school office and at any time. According to Ministry of education on full started implementation teachi ng points digital education resources full cover project of notification (taught tec

429、hnical letter (2012) 74th,) and XX Province Department of education on issued XX province teachi ng points digital education resources full cover project implementation views of notification (chuan taught letter (2013) 18th,) requirements, I city 6 a teachi ng points implementation teaching points d

430、igital education resources full cover project, combined I city specific situation, developed issued has XX City Burea u on teaching points digital resources full cover project of implementation programme, Established XX, full coverage of digital resources in modern di stance education teachi ng pr o

431、ject leading group, XX, chaired the Se cretary for education. E stablished, digital resources in modern distance education teaching, XX full coverage proje ct group, XX, Direct or of the Center for educational information and equipment chaired Zhu Guiyan, responsible for distance education digital r

432、esources covering project work. Projects in XX city school digital resources in modern distance education teaching full-coverage proje ct leading group, digital resources in modern distance education teaching, and XX full coverage project group leadership and organization, in accordance with the uni

433、fied arrangement of the whole province, responsible for university education digital resources covering proje ct management and implementation. According to provinces arrangements, I Center has arrangements Gongimprove, security prevention capacity obviously enhanced, security hidden and security ac

434、cident obviously reduced, effective guarantees information health development. XX E ducation Centre regularly carry out day-to-day network security monitoring information and equipment. By the appropriate technical staff, XX network engine room maintenance staff on site management and maintenance on

435、 a regular basis, scheduled viewing of networks, systems, databases and associated equi pment operating conditions, and make a record. Computer lab maintenance managers regularly run a variety of devices in the school information system parameters, server systems and various data ba ckup, so that th

436、ere was a hardware failure in a system crash can resume qui ckly and efficiently. Computer lab maintenance managers establish a network antivirus system, Avira Virus system on a regular basis, and anti-virus software security a ssessment, time to upgrade. Computer lab maintenance management for all

437、equipment in the room a regular dust, replace the old label. Regularly host servers, network switches, core routing, firewalls, hardware maintenance, such as equi pment failure, should be proce sse d in a timely manner in order to ensure safe and reliable operation of the system. In XX city informat

438、ion and equipment was established within the Centre, educational metropolitan area network center machine room XX. Servers and data stores and applications to set up in XX City metropolitan area network center machine room. WindowsServer2003, windowsServer2008, windowsServer2012, Linux, the operatin

439、g system, the database for SQL Server2008, Office software, such as Micr osoft Office software. Schools (units) of computer, information system security products for domestic products, incl udi ng the use of 360 and kingsoft Internet security software. XX education metropolitan area network used by

440、the server for HP, firewall and information security product for Huaweiand Cisco products. In their daily work, to publicize related knowledge and information security considerations. Enhanced global awareness of network and information security, and strive to achieve network everyone knows security

441、 and virus before the guard, to improve network and information security, ensure that the XX education system network and i nformation system security. Tracking reporting system requires all parties to strengthen collaboration, work closely with emergency safety plan developed XX education metropoli

442、tan area network, regularly carry out emergency drills, and carried out special funds every year to protect the security of information. Annual 2-3 professional training for network managers in the cit y, forming technology with a strong professional and technical team, school network managers on co

443、mmon network failures and be ca pable of solving security issues. Issues that cannot be resolve d, timely forms of meetings, such as meetings, analysis, and solutions through a meeting, without rolling up the ability to solve problems, and feedba ck to superiors in writing departments to resolve. Th

444、rough self -examination, we are well aware, relative lack of investment in education, facilities and equi pment for further updates, education development is still uneven, new education concepts need to be further enhanced to some extent and restricting the development of city education. We will tak

445、e the opportunity of government supervision, to strive for the province education demonstration counties as a driving force, further increase input in education, efforts to promote thelong wing, and Li Wanfu, and Michael Jenkins, and Che n Jian, and Song and xiaochuanyun, 7 bit comrade participate i

446、n province backbone face-to-face or network learning, do each tea chi ng points are has teachers participate in training, October 17, 2013, issued XX city education information and equipmnt Ce nter on requirements the teachi ng points schoolfor good satellite ground station installation prepared of

447、notification, requirements school related management personnel familiar XX pr ovince teaching poi nts digital education resources full cover project construction management manual, Particularly with regard to installation preparation parts according to the point of XX province full coverage of digit

448、al educational resources in the project construction management manual . Devices are able to receive TV signals and IP data, the schools have school training and school-based application to use good. Actively organize implementation of a division of a class, a teacher in one class activity. XX in XX

449、 city first to complete full registration of teachers working in this city, XX, S un class rate of 54 per cent respectively, the forefront. In XX, a division of a class, a class a total ranked first in Division activities, was awarded the national ministerial one, 2 provincial second prize, third pr

450、ize at the pr ovincial level 3. Actively organize implementation of the e-learning space the work of everyone. At present, in the open spa ce of public service platform of provincial educational resources teachers number 2444, 83 to the total number of teachers, student number is 6569 of the open sp

451、ace, the citys total stude nts 18.31 to (junior hig h school students in 30 above, students not require d), registration number to meet the requirements of teachers and students, in XX in first place. Five, information technol ogy application capability as a means to boost teaching of teachers to us

452、e information, Education Bureau of XX title and modern educational technology teacher assessment levels linked to the examination; launched a provinci al model school of modern education technology selecti on, a dvanced unit in education a year (individual) award. o expedite education informatizatio

453、n work, the city established the school running level of supervision and assessment system. Information education in school performance evaluation, e ducation assessment information work more than to cut weight 10. Practice is a regular room supervision, e ducation information steering, steering, st

454、eering with the end, principals of education i nformation into performance assessment an d school level monitoring and evaluation, to develop a scientific, operational education information steering assessment methods, tracking management of education information and applications. By March 2016, 100

455、 of the teachers, I participate d in a national educational technology training for primary and secondary school teachers, the teachers have made to cut 80 primary and middle school teachers educational technology proficiency test certificate. At present , all schools have acce ss to broadband netwo

456、rks. Training cla ssification training of teachers, school teachers, academic leaders, information technology, teacher training nd net work management personnel from the County, within the school back to school training once training is complete. Through this mode of classification training, i nform

457、ation technol ogy application capability training of teachers in our city reached 100. XX series of effective information (54) 在下列几种排序方法中，要求内存量最大的是_。(D) A. 插入排序B. 选择排序C. 快速排序D. 归并排序(55) 在设计程序时，应采纳的原则之一是_。(A) A. 程序结构应有助于读者理解B. 不限制 goto 语句的使用C. 减少或取消注解行D. 程序越短越好(56) 下列不属于软件调试技术的是_。(B) A. 强行排错法B. 集成测试法

458、C. 回溯法 D. 原因排除法(57) 下列叙述中，不属于软件需求规格说明书的作用的是_。(D) A. 便于用户、开发人员进行理解和交流B. 反映出用户问题的结构，可以作为软件开发工作的基础和依据C. 作为确认测试和验收的依据D. 便于开发人员进行需求分析(58) 在数据流图（DFD ）中，带有名字的箭头表示_。(C) A. 控制程序的执行顺序B. 模块之间的调用关系C. 数据的流向D. 程序的组成成分(59) SQL 语言又称为 _。(C) A. 结构化定义语言B. 结构化控制语言C. 结构化查询语言D. 结构化操纵语言(60) 视图设计一般有3 种设计次序，下列不属于视图设计的是_。(B)

459、 A. 自顶向下B. 由外向内C. 由内向外D. 自底向上(61) 数据结构中，与所使用的计算机无关的是数据的_。(C) A. 存储结构B. 物理结构C. 逻辑结构D. 物理和存储结构(62) 栈底至栈顶依次存放元素A、B、C、D，在第五个元素E入栈前，栈中元素可以出栈，则出栈序列可能是_。(D) A. ABCEDB. DBCEAC. CDABED. DCBEA (63) 线性表的顺序存储结构和线性表的链式存储结构分别是_。(B) A. 顺序存取的存储结构、顺序存取的存储结构B. 随机存取的存储结构、顺序存取的存储结构 C. 随机存取的存储结构、随机存取的存储结构D. 任意存取的存储结构、任意

460、存取的存储结构(64) 在单链表中，增加头结点的目的是_。(A) A. 方便运算的实现B. 使单链表至少有一个结点C. 标识表结点中首结点的位置D. 说明单链表是线性表的链式存储实现(65) 软件设计包括软件的结构、数据接口和过程设计，其中软件的过程设计是指_。(B) A. 模块间的关系B. 系统结构部件转换成软件的过程描述C. 软件层次结构D. 软件开发过程(66) 为了避免流程图在描述程序逻辑时的灵活性，提出了用方框图来代替传统的程序流程图，通常也把这种图称为_。(B) A. PAD 图 B. N-S 图 C. 结构图 D. 数据流图(67) 数据处理的最小单位是_。(C) A. 数据 B

461、. 数据元素C. 数据项 D. 数据结构(68) 下列有关数据库的描述，正确的是_。(C) A. 数据库是一个DBF文件 B. 数据库是一个关系C. 数据库是一个结构化的数据集合D. 数据库是一组文件(69) 单个用户使用的数据视图的描述称为_。(A) 精选学习资料 - - - - - - - - - 名师归纳总结 - - - - - - -第 9 页，共 10 页management systems and measures establishe d by, and a number of pragmatic, combined part-time workforce education i

462、 nformation, the protection of the digital campus construction and sustainable development. Six Bureau attaches great importance to information technology security, infor mation technology security, entrust XX City Center for educational information and equi pment dedicated to the work. Network secu

463、rity leading group was set up, chaire d by the Education Burea u Chief, head, for XX education Metro-netw ork and information security emergency response leadership. Deputy group leader for XX educational metropolitan area network and information security emergency response coordination, command. Th

464、e team assist leader and deputy leader, responsible for network XX network security and i nformation . eam. Information security work Conference held each semester, and deployment of information security of documents issued on a regular basis. Information security assessment is incl uded in the annu

465、al index. Strictly implement the information security budget to ensure information security of investment. By XX, education information and equipment Centre XX network network security and information security. According to the information technology security requirements, issued a document requires

466、 schools (units) implement, defined the information security guidelines, specific work practices, procedures, and requirements. Clear industry information security incidents (accidents) to detect, report a nd disposal processes. A ccording to self -examination, the school (units) basic established h

467、as network security management system; the school (units) according to this units actual, established has units personnel management, information system room management, and equipment management, and media management, and network security construction management, and shipped dimensi on management, a

468、nd service outsourcing, management system; developed has computer and the network of network security responsibility held system, signed has network security responsibility; website of information management personnel is responsible for confidential management, password management, on computer enjoy

469、s independent right, User name and passwor d of the computer for its proprietary, and release of provisions is prohi bited, such as leaks, investigated for responsibility. According to who is in charge of whos in charge, who i s running and who is responsible for, who uses principles of who is in ch

470、arge of management schools (units) defined the roles and responsibilities of information security, assurance responsibilities to schools. XX city schools (units) total site 20, 19 of which were not classified security protection assessment, of which 1 (XX education and resource network) for classifi

471、ed security protection levels, without third-level information systems. otal education i nformation systems 1 (XX education cloud platform), contains features with e-Government, resource library, test database, mail services, such as e-book s, all intranet services. No for grade protection grading r

472、ecord and evaluation of school (units), requirements the school (units) according to information securi ty grade protection about policy and standard, organization carried out information security grade protection security management system construction, and technology measures constructi on and gra

473、de evaluation, implementation grade protection system of the requirements, makes information system security management level obviouslyfacility up to 160 million Yuan, according to the standard, high quality planning XX educational metropolitan area network realizes Wan Zha okuan to schools, hundred

474、s of megabytes of broadba nd to the table, wire (ie: Web, vi deo, audi o) to the target, electronic whiteboards, multimedia classr ooms, remote interactive video teachi ng system of modern educationalequipment in the cla ssroom. . Wit h Intel company on XX E ducation City domain network of topic cas

475、e de sign, relies on Cisco company thought Shu aid chuan project staff free provides has three years technology support, from 2009 began, according to high standards, and high of work thought, and manpower planning, and points step implementation, using school earthquake Hou reconstruction of opport

476、unities, again planning elementary and middle schools campus network and education city domain network, and local broadcasting network company cooperation, using broadcast TV network, will physi cal fiber laying to each school, to minimum of cost achieved has physical fiber school school pass; Each

477、school construction standards of campus network and network access to all rooms; XX education metropolitan area network center machine room equipment in the Ministry of education standardization management platform, the Central Library of audio-visual e ducation resources, set up a Chinese teacher e

478、ducation cloud platform, implemented links the two platforms. At present, the citys primary and middle school students to computer 3198, vitality than 10:1; 809 equipment classes through the classroom (primary and secondary); 36 of the campus network. The establishment of an advance d, practical Gig

479、abit educational metropolitan area network, the citys schools have access to educational metropolitan area network, schools have computer networks, closed-cir cuit television network, broadcast networks into the classrooms, realize the triple play. Schools share Internet bandwidth, can me et the nee

480、ds of teaching of the school office and at any time. According to Ministry of education on full started implementation teachi ng points digital education resources full cover project of notification (taught technical letter (2012) 74th,) and XX Province Department of education on issued XX province

481、teachi ng points digital education resources full cover project implementation views of notification (chuan taught letter (2013) 18th,) requirements, I city 6 a teachi ng points implementation teaching points digital education resources full cover project, combined I city specific situation, develop

482、ed issued has XX City Burea u on teaching points digital resources full cover project of implementation programme, Established XX, full coverage of digital resources in modern di stance education teachi ng pr oject leading group, XX, chaired the Se cretary for education. E stablished, digital resour

483、ces in modern distance education teaching, XX full coverage proje ct group, XX, Direct or of the Center for educational information and equipment chaired Zhu Guiyan, responsible for distance education digital resources covering project work. Projects in XX city school digital resources in modern dis

484、tance education teaching full-coverage proje ct leading group, digital resources in modern distance education teaching, and XX full coverage project group leadership and organization, in accordance with the unified arrangement of the whole province, responsible for university education digital resou

485、rces covering proje ct management and implementation. According to provinces arrangements, I Center has arrangements Gongimprove, security prevention capacity obviously enhanced, security hidden and security accident obviously reduced, effective guarantees information health development. XX E ducati

486、on Centre regularly carry out day-to-day network security monitoring information and equipment. By the appropriate technical staff, XX network engine room maintenance staff on site management and maintenance on a regular basis, scheduled viewing of networks, systems, databases and associated equi pm

487、ent operating conditions, and make a record. Computer lab maintenance managers regularly run a variety of devices in the school information system parameters, server systems and various data backup, so t hat there was a hardware failure in a system crash can resume qui ckly and efficiently. Computer

488、 lab maintenance managers establish a network antivirus system, Avira Virus system on a regular basis, and anti-virus software security a ssessment, time to upgrade. Computer lab maintenance management for all equipment in the room a regular dust, replace the old label. Regularly host servers, netwo

489、rk switches, core routing, firewalls, hardware maintenance, such as equi pment failure, should be proce sse d in a timely manner in order to ensure safe and reliable operation of the system. In XX city information and equipment was established within the Centre, educational metropolitan area network

490、 center machine room XX. Servers and data stores and applications to set up in XX City metropolitan area network center machine room. WindowsServer2003, windowsServer2008, windowsServer2012, Linux, the operating system, the database for SQL Server2008, Office software, such as Micr osoft Office soft

491、ware. Schools (units) of computer, information system security products for domestic products, incl udi ng the use of 360 and kingsoft Internet security software. XX education metropolitan area network used by the server for HP, firewall and information security product for Huaweiand Cisco products.

492、 In their daily work, to publicize related knowledge and information security considerations. Enhanced global awareness of network and information security, and strive to achieve network everyone knows security and virus before the guard, to improve network and information security, ensure that the

493、XX education system network and i nformation system security. Tracking reporting system requires all parties to strengthen collaboration, work closely with emergency safety plan developed XX education metropolitan area network, regularly carry out emergency drills, and carried out special funds ever

494、y year to protect the security of information. Annual 2-3 professional training for network managers in the cit y, forming technology with a strong professional and technical team, school network managers on common network failures and be ca pable of solving security issues. Issues that cannot be re

495、solve d, timely forms of meetings, such as meetings, analysis, and solutions through a meeting, without rolling up the ability to solve problems, and feedba ck to superiors in writing departments to resolve. Through self-examination, we are well aware, relative lack of investment in education, facil

496、ities and equi pment for further updates, education development is still uneven, new education concepts need to be further enhanced to some extent and restricting the development of city education. We will take the opportunity of government supervision, to strive for the province education demonstra

497、tion counties as a drivng force, further increase input in education, efforts to promote thelong wing, and Li Wanfu, and Michael Jenkins, and Che n Jian, and Song and xiaochuanyun, 7 bit comrade participate in province backbone face-to-face or network learning, do each tea chi ng points are has teac

498、hers participate in training, October 17, 2013, issued XX city education information and equipment Center on requirements the teachi ng points schoolfor good satellite ground station installation prepared of notification, requirements school related management personnel familiar XX pr ovince teachin

499、g poi nts digital education resources full cover proje ct constructi on management manual, Particularly with regard to installation preparation parts according to the point of XX province full coverage of digital educational resources in the project construction management manual . Devices are able

500、to receive TV signals and IP data, the schools have school training and school-based application to use good. Actively organize implementation of a division of a class, a teacher in one class activity. XX in XX city first to complete full registration of teachers working in this city, XX, S un class

501、 rate of 54 per cent respectively, the forefront. In XX, a division of a class, a class a total ranked first in Division activities, was awarded the national ministerial one, 2 provincial second prize, third prize at the provincial level 3. Actively organize implementation of the e-learning space th

502、e work of everyone. At present, in the open spa ce of public service platform of provincial educational resources teachers number 2444, 83 to the total number of teachers, student number is 6569 of the open space, the citys total stude nts 18.31 to (junior hig h school students in 30 above, students

503、 not require d), registration number to meet the requirements of teachers and students, in XX in first place. Five, information technol ogy application capability as a means to boost teaching of teachers to use information, Education Bureau of XX title and modern educational technol ogy teacher asse

504、ssment levels linked to the examination; launched a provinci al model school of modern education technology selecti on, a dvanced unit in education a year (individual) award. o expedite education informatization work, the city established the school running level of supervi sion and assessment syste

505、m. Information education in school performance evaluation, e ducation assessment information work more than to cut weight 10. Practice is a regular room supervision, e ducation information steering, steering, steering with the end, principals of education i nformation into performance assessment and

506、 school level monitoring and evaluation, to develop a scientific, operational education information steering assessment methods, tracking management of education information and applications. By March 2016, 100 of the teachers, I participate d in a national educational technology training for primar

507、y and secondary school teachers, the teachers have made to cut 80 primary and middle school teachers educational technology proficiency test certificate. At present , all schools have acce ss to broadband networks. Training classification training of teachers, school teachers, academic leaders, info

508、rmation technology, teacher training and net work management personnel from the County, within the school back to school training once training is complete. Through this mode of classification training, i nformation technol ogy application capability training of teachers in our city reached 100. XX

509、series of effective information A. 外模式 B. 概念模式C. 内模式 D. 存储模式(70) 需求分析阶段的任务是确定_。 (D) A. 软件开发方法B. 软件开发工具C. 软件开发费用D. 软件系统功能(71) 算法分析的目的是_。(D) A. 找出数据结构的合理性B. 找出算法中输入和输出之间的关系C. 分析算法的易懂性和可*性 D. 分析算法的效率以求改进(72) n个顶点的强连通图的边数至少有_。(C) A. n-1B. n(n-1)C. nD. n+1 (73) 已知数据表A中每个元素距其最终位置不远，为节省时间，应采用的算法是_。(B) A. 堆

510、排序 B. 直接插入排序C. 快速排序D. 直接选择排序(74) 用链表表示线性表的优点是_。 (A) A. 便于插入和删除操作B. 数据元素的物理顺序与逻辑顺序相同C. 花费的存储空间较顺序存储少D. 便于随机存取(75) 下列不属于结构化分析的常用工具的是_。(D) A. 数据流图B. 数据字典C. 判定树 D. PAD 图(76) 软件开发的结构化生命周期方法将软件生命周期划分成_。(A) A. 定义、开发、运行维护B. 设计阶段、编程阶段、测试阶段C. 总体设计、详细设计、编程调试D. 需求分析、功能定义、系统设计(77) 在软件工程中， 白箱测试法可用于测试程序的内部结构。此方法将程

511、序看做是_。(C) A. 循环的集合B. 地址的集合 C. 路径的集合D. 目标的集合(78) 在数据管理技术发展过程中，文件系统与数据库系统的主要区别是数据库系统具有_。(D) A. 数据无冗余B. 数据可共享 C. 专门的数据管理软件D. 特定的数据模型(79) 分布式数据库系统不具有的特点是_。(B) A. 分布式 B. 数据冗余 C. 数据分布性和逻辑整体性D. 位置透明性和复制透明性(80) 下列说法中，不属于数据模型所描述的内容的是_。(C) A. 数据结构B. 数据操作C. 数据查询D. 数据约束精选学习资料 - - - - - - - - - 名师归纳总结 - - - - - - -第 10 页，共 10 页