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642-883 Product Description:
Exam Number/Code: 642-883 vce
Exam name: Deploying Cisco Service Provider Network Routing (SPROUTE)
n questions with full explanations
Certification: Cisco Certification
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2016 Jun 642-883 exam prep

Q11. Which router has the su 10.5.10.0/24 [20/115] entry pointing to NullO in its routing table and why? (Choose two.) 

A. CE5 

B. PE5 

C. PE6 

D. The router is summarizing 10.5.10.1/32 into 10.5.10.0/24 

E. The router is suppressing the 10.5.10.0/24 route 

F. The L2/L1 IS-IS router is blocking the 10.5.10.0/24 interarea route to the L1-only router 

Answer: D,F 

Explanation: 

# show clns route 


Q12. When using the show bgp ipv6 unicast summary command to verify the IPv6 BGP session status with the IPv6 BGP peers, you noticed the "St/PfxRcd" status for one of the IPv6 BGP peers is in the "Active" state. What does the "Active" state indicate? 

A. The IPv6 BGP session has been established with the IPv6 BGP peer. 

B. The router is in the process of sending BGP routing updates to the IPv6 BGP peer. 

C. The router is in the process of establishing the IPv6 BGP session with the IPv6 BGP peer. 

D. The router is exchanging BGP notification messages with its IPv6 BGP peer. 

Answer: C 


Q13. RAG DROP 

Answer: 


Q14. Refer to the show command output in the exhibit. 

For which reason will this router drop all traffic that is destined to the 1.1.1.0/24 network? 

A. The 1.1.1.0/24 route is not synchronized. 

B. The BGP next hop for reaching the 1.1.1.0/24 network is not reachable. 

C. The metric of the 1.1.1.0/24 route is set to 0. 

D. The weight of the 1.1.1.0/24 route is set to 0. 

E. The 1.1.1.0/24 route is an incomplete route. 

F. The IBGP split-horizon rule is preventing the router to use the IBGP route. 

Answer: B 


Q15. Refer to the exhibit. 

XR4 must be configured to advertise only AS 100 local subnets to AS 10..Which configuration on XR4 achieves this goal? 

A. as-path-set LOCAL ios-regex ^$ route-policy ADV if as-path in LOCAL then pass endif 

B. as-path-set LOCAL ios-regex '^100$' route-policy ADV if as-path in LOCAL then pass endif 

C. as-path-set LOCAL ios-regex '^$' route-policy ADV if as-path in LOCAL then pass endif 

D. as-path-set LOCAL ios-regex ^100$ route-policy ADV if as-path in LOCAL then pass endif 

Answer: C 


642-883  exam

Rebirth 642-883 torrent:

Q16. There are how many IS-IS area(s) defined in this network Scenario? 

A. 1 

B. 2 

C. 3 

D. 4 Answer: C 

Explanation: #show clns 


Q17. What are three common problems that can cause a BGP neighbor state to toggle between the idle state and the active state? (Choose three.) 

A. BGP network command misconfiguration 

B. route policy misconfiguration 

C. AS number misconfiguration 

D. route map misconfiguration 

E. BGP neighbor peering to wrong IP address 

F. IGP routing problem: not able to reach the source IP address of the BGP open packet 

Answer: C,E,F 


Q18. A Cisco IOS XR router must be configured with BFD for OSPF. Which configuration is correct? 

A. interface GigabitEthernet0/0/0/0 ip ospf bfd 

B. router ospf 1 area 0 interface GigabitEthernet0/0/0/0 bfd fast-detect 

C. router ospf 1 area 0 interface GigabitEthernet0/0/0/0 bfd fast-detect ipv4 

D. router ospf 1 bfd all-interfaces 

Answer: B 


Q19. Which high-availability mechanism is a detection protocol that is enabled at the interface and at the routing protocol levels? 

A. NSF 

B. SSO 

C. NSR 

D. BFD 

E. SDR 

Answer: D 

Explanation: 

http://www.cisco.com/en/US/docs/ios/12_0s/feature/guide/fs_bfd.html 


Q20. Refer to the exhibit. 

Which two configuration options can be used to optimize the IS-IS network scenario? (Choose two.) 

A. Change the R1 and R2 IS type to Level 2. 

B. Change the R1 and R2 IS type to Level 1. 

C. Change the gi0/0 interface IS-IS circuit type on R1 and R2 to Level 2 only. 

D. Change the gi0/1 interface IS-IS circuit type on R1and R2 to Level 1. 

E. Change the IS type for all the routers to Level-1-2. 

F. Change the IS-IS network type for all the routers to point-to-point. 

Answer: C,D 



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