Cisco 642-883 Online Practice Questions and Exam Preparation

Cisco 642-883 Online Questions & Answers

• Question 41:

  Refer to the exhibit.

  

  R2 does not have R1 1.1.1.1/32 subnet in its BGP table. Which issue can be causing this problem?

  A. XR4 does not have next-hop-self for a R2 iBGP session.
  B. R2 does not have no auto-summary configured.
  C. XR4 drops any update coming from R1.
  D. IPv4 address-family is not enabled on R1.
  C. XR4 drops any update coming from R1.

• Question 42:

  You are implementing OSPF as the IGP using a single OSPF area design. The router memory usage for OSPF is too high. Which two methods can lower the OSPF memory usage? (Choose two.)

  A. Enable OSPF synchronization
  B. Implement multi-area OSPF
  C. Enable OSPF sham links to reduce the number of LSAs
  D. Implement route summarization on the ABRs
  E. Enable route leaking between Level 1 and Level 2 areas
  B. Implement multi-area OSPF
  D. Implement route summarization on the ABRs

• Question 43:

  Which option is a mechanism that can be implemented between two eBGP peers to communicate the routes each peer needs from the other?

  A. ORF
  B. ACL
  C. prefix list
  D. route map
  A. ORF

• Question 44:

  Refer to the exhibit.

  

  IS-IS adjacency is not established between XR2 and R1. Which action fixes this issue?

  A. unify IS-IS process IDs on each router
  B. configure on R1 under IS-IS is-type level-1-2
  C. configure on R1 under IS-IS area-password CISCO
  D. configure on XR2 under IS-IS under Gi0/0/0/0 address-family ipv4 unicast
  D. configure on XR2 under IS-IS under Gi0/0/0/0 address-family ipv4 unicast

• Question 45:

  A network has four routers running IS-IS with the NET addresses below:

  R1 ?49.1234.1111.1111.1111.00

  R2 ?49.1234.2222.2222.2222.00

  R3 - 49.4321.1111.1111.1111.00

  R4 - 49.4321.2222.2222.2222.00

  How can IS-IS authentication be enabled between all routers?

  A. domain authentication with the command(config-rtr)#domain-passwordword
  B. domain authentication with the command (config-if)#isis domain-passwordword
  C. interface authentication with the command (config-if)#isis passwordword
  D. area authentication with the command (config-if)#isisarea-passwordword
  A. domain authentication with the command(config-rtr)#domain-passwordword

• Question 46:

  

  

  

  Which statement is correct regarding the DR election process In this OSPF implementation?

  A. Both the CE5 and PE6 routers are DROTHERs
  B. PE5 is the OSPFv2 DR for the GigabitEthernet link between PE5 and PE6
  C. PE6 is the OSPFv2 and OSPFv3 DR for the GigabitEthernet link between PE5 and PE6
  D. PE6 is the DR for the GigabitEthernet link between PE5 and PE6 because it has a higher OSPF priority
  A. Both the CE5 and PE6 routers are DROTHERs

  ---

  Explanation: # show ip ospf neighbor # show ipv6 ospf neighbor

• Question 47:

  Refer to the Cisco IOS-XR route policy exhibit.

  

  Which statement correctly describes this route policy?

  A. The pass action is required after each of the set community statements to make this route policy functional.
  B. If a route has both the 11:11 and 22:22 communities (or 44:44 and 22:22), the router adds the 55:55 community only.
  C. If a route contains the 11:11 or 44:44 community, the router adds the 55:55 community and continues. Additionally, if the same route also contains the 22:22 community, the router also adds another 77:77 community to the same route.
  D. If a route only has the 22:22 community, then no community will be added by the router.
  E. If a route only has the 11:11 or 44:44 community, then no community will be added by the router.
  B. If a route has both the 11:11 and 22:22 communities (or 44:44 and 22:22), the router adds the 55:55 community only.

• Question 48:

  Refer to the exhibit.

  

  Which configuration is correct for XR4 for an e-BGP session with R1?

  A. router bgp 100 neighbor 10.10.14.1 remote-as 100
  B. router bgp 100 neighbor 10.10.14.1 remote-as 10 address-family ipv4 unicast
  C. router bgp 100 address-family ipv4 unicast neighbor 10.10.14.1 remote-as 100 address-family ipv4 unicast
  D. router bgp 100 address-family ipv4 unicast neighbor 10.10.14.1 remote-as 100
  C. router bgp 100 address-family ipv4 unicast neighbor 10.10.14.1 remote-as 100 address-family ipv4 unicast

• Question 49:

  Refer to the exhibit.

  

  A service provider (AS65000) is interconnected to two upstream providers (ISP 1 neighbor IP 192.168.1.1 and ISP 2 neighbor IP 192.168.1.2) via a single link in a peering exchange. Which option can an engineer use to implement nonproprietary policies to make ISP 1 the preferred link for incoming and outgoing traffic from the local SP?

  A. route-map outgoing permit 10set-as 璸ath prepend 65000 65000 65000route-map incoming permit 10set local-preference 1000router bgp 65000neighbor 192.168.1.1 route- map incoming outneighbor 192.168.1.1 route-map outgoing in
  B. route-map outgoing permit 10set metric 100route-map incoming permit 10set weight 100router bgp 65000neighbor 192.168.1.1 route-map incoming inneighbor 192.168.1.1 route-map outgoing out
  C. route-map outgoing permit 10set-as 璸ath prepend 65000 65000 65000route-map incoming permit 10set local-preference 1000router bgp 65000neighbor 192.168.1.1 route- map incoming inneighbor 192.168.1.2 route-map outgoing out
  D. set-as 璸ath prepend 65000 65000 65000route-map incoming permit 10set weight 100router bgp 65000neighbor 192.168.1.1 route-map incoming inneighbor 192.168.1.1 route-map outgoing out
  A. route-map outgoing permit 10set-as 璸ath prepend 65000 65000 65000route-map incoming permit 10set local-preference 1000router bgp 65000neighbor 192.168.1.1 route- map incoming outneighbor 192.168.1.1 route-map outgoing in

• Question 50:

  Refer to the exhibit.

  

  Which configuration is correct for RX4 for an e-BGP session with R1?

  A. router bgp 100address-family ipv4 unicast!neighbor 10.10.14.1remote-as 10address- family ipv4unicastroute-policy POLICY in
  B. router bgp 100address-family ipv4 unicast!neighbor 10.10.14.1remote-as 100
  C. router bgp 100!neighbor 10.10.14.1remote-as 100
  D. router bgp 100!neighbor 10.10.14.1remote-as 10address-family ipv4 unicast
  A. router bgp 100address-family ipv4 unicast!neighbor 10.10.14.1remote-as 10address- family ipv4unicastroute-policy POLICY in