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1、Exam:Cisco 350- 020 Title:CCIE SP Optical Qualification Exam Version :Demo 1. What IE is not mandatory in a Q.931 Service msg? A. Bearer capability B. Channel ID C. Message Type D. Change Status E. Call Reference Answer: A 2. The purpose of Administrative Distance, as used by Cisco routers, is: A. T
2、o choose between routes from different routing protocols when receiving updates for the same network B. To identify which routing protocol forwarded the update C. To define the distance to the destination used in deciding the best path D. To be used only for administrative purposes Answer: A 3. What
3、 is the maximum PMD value of a 100km fiber segment if the cable is specified with 0.5ps/km ? (worst case)? A. 0.005ps B. .05ps C. 5ps D. 50ps E. 500ps Answer: C 4. What is the equivalent of 50 GHz spacing in DWDM in terms of nm? A. 1.6 nm B. 0.8 nm C. 0.4 nm D. 0.2 nm Answer: C 5. Click the Exhibit
4、to view the topology. Router A has a 512K- access port into the frame relay cloud.Router B has 128K- access port into the frame relay cloud.The two routers are connected with symmetrical PVCs that are configured for 64K committed information rate (CIR).What Frame Relay Traffic Shaping map- class sub
5、- command should be entered on Router A to prevent workstation A from overrunning the access port on Router B? A. frame- relay traffic- rate 128000 512000 B. frame- relay traffic- rate 64000 512000 C. frame- relay traffic- rate 512000 64000 D. frame- relay traffic- rate 128000 64000 E. frame- relay
6、traffic- rate 64000 128000 Answer: E 6. If a host sends a TCP segment with the RST flag set, it means: A. The receiver should send all data in the reassembly buffer to the application receiving it immediately. B. The receiver should reset the session. C. Any routers between the source and destinatio
7、n hosts should reset the state of the connection in their buffers. D. The receiver should make certain its send buffer is pushed onto the wire. Answer: B 7. How many E1 channels can STM- 1 frame transport? A. 7 B. 21 C. 63 D. 84 Answer: C 8. BGP can implement a policy ofRoute Dampening to control ro
8、ute instability. What statement about route dampening is NOT correct? A. A numeric penalty is applied to a route each time it flaps. B. The penalty is exponentially decayed according to parameters, such as half- life- time. C. The history of unstable routes is forwarded back to the sender to control
9、 future updates. D. The route is eventually suppressed based on a configurable suppress limit. Answer: C 9. MPLS traffic engineering data is carried by: A. Opaque LSAs or IS- IS TLVs B. BGP MEDs C. RTP or RTCP packets D. MBGP Answer: A 10. Click the Exhibit button. In the diagram, if a resilient pac
10、ket ring (RPR) is built between ML- series cards, _ restoration exists on the ring, while the redundant connections to the 7609 rely on _protection. A. 50 ms, STP B. STP, STP C. STP, 1+1 APS D. 50ms, 50ms Answer: A 11. How many E- 1s can be aggregated (maximum) and mapped into a VC- 12 Signal? A. 1
11、B. 7 C. 14 D. 28 E. 32 Answer: A 12. What is Fast EtherChannel? A. A feature to bundle multiple Ethernet point- to- point links quickly into one logical high speed link B. A feature to bundle multiple Fast- Ethernet point- to- point links into one logical high speed link C. Another name for full- du
12、plex Fast Ethernet D. Another name for Gigabit Ethernet E. None of the above Answer: B 13. Click the Exhibit button. Acustomer has improperly installed a 2- node OC- 12 SRP ring using dark fiber.Based on the printout from each node shown in the exhibit, what is the problem? A. Misconfigured timing B
13、. Single faulty span or fiber between nodes C. A- B side SRP interfaces are fiber- looped on each node D. A- B side TX- TX and RX- RX fibers connected between nodes E. A- A and B- B side SRP interfaces connected between nodes Answer: C 14. Click the Exhibit button. Which are the two possible circuit
14、 sizes for an E- series shared packet ring in the network shown in the exhibit? A. STS- 1 B. STS- 3c C. STS- 6c D. STS- 9c E. STS- 12c Answer: AB 15. Click the Exhibit button to view the configuration. Upon deleting an IOS image file from flash, an execution of show flash shows the file still in fla
15、sh, with a D preceding it (as shown in the exhibit).What step must be taken in order to remove the file completely? A. Erase the file from flash B. Format the flash device C. Replace the flash card -it is defective D. Execute a squeeze command on the flash device Answer: D 16. Click the Exhibit butt
16、on to view the topology. According to the diagram, what attribute is initiated by AS200 (IBGP) to give preference to the path A or D traffic will take when going from AS200 to AS100 . What attribute is initiated by AS200 (EBGP) to give preference to the path B or C traffic will take when going from AS100 to AS200? A. MED; Origin B. MED; Local Preference C. Community; Origin D. Local Preference; MED E. Origin; Community Answer: D 17. Which three events might you diagnose as the cause
