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Cisco 350-020 Exam
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CCIE SP Optical Qualification Exam
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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. To 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 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. Corning Leaf fiber has a spec of 2.0 - 6.0 ps/(nm.km) for dispersion. Subtract 10% from the 15454's OC-48 ELR dispersion tolerance for a margin of error. What is the maximum distance a signal from an OC-48 100GHz ELR card can go before becoming dispersion limited? A. 270 km B. 300 km C. 810 km
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D. 900 km Answer: C
5. What feature of the spatial reuse protocol used in DPT allows for bandwidth reuse on the ring? A. Fairness algorithm B. Token controlled access C. Packet destination stripping D. Automatic topology discovery E. Multicast origination stripping Answer: C
6. Which two operational states can PVCs be in? (multiple answer) A. Data transfer B. Idle C. Down D. Shut Answer: AB
7. What is RPF? A. Reverse Path Forwarding B. Reverse Path Flooding C. Router Protocol Filter D. Routing Protocol File E. None of the above Answer: A
8. 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
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D. 0.2 nm Answer: C
9. What is the usual procedure taken if an unrecognized non-mandatory ISDN IE is received by a network? A. Final handle the call B. Final handle the call if 2 such IE is received C. Ignore only if the IE received is not CS0, otherwise final handle the call D. Send a Facility msg to the user notifying the user of sending unknown IEs but don't final handle E. Ignore the IEs Answer: E
10. Corning Leaf fiber has a spec of 2.0 - 6.0 ps/(nm.km) for dispersion. Subtract 10% from the 15454's OC-48 ELR dispersion tolerance for a margin of error. What is the maximum distance a signal from an OC-48 100GHz ELR card can go before becoming dispersion limited? A. 270 km B. 300 km C. 810 km D. 900 km Answer: C
11. OSPF is defined on a Frame Relay interface providing point-to-multipoint connections. The remote neighbors can reach this central site, but are complaining of routing failures between each of the remote sites. The central router has all the routes for each remote site. Based on this information, what can be diagnosed as the biggest potential problem? A. An over-subscribed Frame Relay switch will cause some packet loss. B. There are problems in the use of OSPF Authentication. C. There is an incorrect selection of the Designated Router. D. There is an incorrect DLCI assigned on a point-to-point sub-interface. Answer: C
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