Cisco 642-661 Online Practice Questions and Exam Preparation

Cisco 642-661 Online Questions & Answers

• Question 71:

  Given the following:

  router bgp 65123 neighbor customers peer-group neighbor 10.1.1.2 remote-as 65213 neighbor 10.1.1.2 peer-group customers neighbor 10.2.2.2 remote-as 65314 neighbor 10.2.2.2 peer-group customers neighbor 10.2.2.2 route-map test2 in

  Based on the BGP configuration for a router in AS 65123, which two statements are true? (Choose two)

  A. The peer group is named "customers".
  B. The two EBGP peer belongs to the same peer-group.
  C. The route-map named "test2" will be applied both EBGP peers.
  D. The peer group configuration is used to reduce the full mesh BGP requirements.
  A. The peer group is named "customers".
  B. The two EBGP peer belongs to the same peer-group.

• Question 72:

  Between which types of routers are VPNv4 BGP routes propagated?

  A. CE and PE
  B. PE and P
  C. CE and P
  D. PE and PE
  D. PE and PE

• Question 73:

  DRAG DROP

  Select and Place:

  

  

• Question 74:

  Why can using the ip tcp path-mtu-discovery command improve BGP convergence?

  A. Smaller MSS sizes may reduce BGP convergence times.
  B. BGP is enabled to fragment its large update packets.
  C. The BGP memory requirements on routers are reduced.
  D. Single packet sizes in TCP sessions are limited.
  E. BGP is allowed to use a larger TCP window size.
  E. BGP is allowed to use a larger TCP window size.

• Question 75:

  Within a transit AS, which routes should the IGP carry if the edge routers are using next-hop-self?

  A. The core subnets and loopback within the transit AS.
  B. The external subnets used in the EBGP sessions with the neighboring ASs.
  C. The external subnets used in the EBGP sessions with the neighboring ASs and the core subnets and loopbacks within the transit AS.
  D. The external routes to remote ASs.
  A. The core subnets and loopback within the transit AS.

• Question 76:

  What are the two methods for configuring BGP route dampening? (Choose two)

  A. Using thebgp dampening command.
  B. Using a route-map with the set dampening command.
  C. Using the neighbor ip-address maximum prefix command.
  D. Using the neighbor ip-addressunsuppress-mapcommand.
  A. Using thebgp dampening command.
  B. Using a route-map with the set dampening command.

• Question 77:

  Examine the following route-map configuration: route-map test permit 10 match as-path 10 set community no-export additive Which of the statements below is correct?

  A. Any route matched by as-path access-list 10 will not be advertised toeBGP peers.
  B. Any route matched by as-path access-list 10 will have its BGP community attribute stripped off when the route is propagated toeBGP peers.
  C. Any route matched by as-path access-list 10 will have its BGP community overwritten with the no-export community.
  D. Any route matched by as-path access-list 10 will have its BGP community attribute stripped off.
  A. Any route matched by as-path access-list 10 will not be advertised toeBGP peers.

• Question 78:

  What is a difference between using the network command vs. the aggregate-address command to perform route aggregation and summarization?

  A. The network command has more configuration options.
  B. The aggregate-address command has the option to suppress some of the more specific routes.
  C. The aggregate-address command can summarize routes learned from other routing protocols besides BGP.
  D. The network command requires the more specific routes to be in the BGP table.
  E. The network command always requires the configuration of a static route pointing to the null interface.
  B. The aggregate-address command has the option to suppress some of the more specific routes.

• Question 79:

  Examine the topology and the configuration output. If the show ip bgp summary command was issued from R1, how many prefixes would it have in the State/PfxRcd field?

  

  A. 1
  C. 3
  D. 2
  B

• Question 80:

  During the autonomous system number migration process, which BGP feature allows a BGP router to act as a router within one autonomous system to some BGP neighbors but also appear to be in another autonomous system to other

  neighbors?

  A. as-pathprepending
  B. Site-of-Origin (S00)
  C. AS override
  D. local-as
  E. remove-private-as
  D. local-as