Cisco 642-661 Online Practice Questions and Exam Preparation

Cisco 642-661 Online Questions & Answers

• Question 41:

  What are two characteristics of BGP confederations? (Choose two.)

  A. All routers within the BGP confederation must support BGP confederations.
  B. An Intra-Confederation EBGP session behaves like an EBGP session when propagating routing updates.
  C. The member AS numbers used within the confederation are visible from outside the confederation.
  D. Intra-Confederation EBGP neighbors must be directly connected orebgp-multihop must be configured.
  A. All routers within the BGP confederation must support BGP confederations.
  D. Intra-Confederation EBGP neighbors must be directly connected orebgp-multihop must be configured.

• Question 42:

  omitted) ! router bgp 65500 neighbor 172.25.25.25 remote-as 65501 neighbor 172.22.22.25 remote-as 65502 neighbor 172.23.23.22 remote-as 65503 ! (output omitted)

  You work as a network technician. Study the exhibit carefully. Which of the following is the correct set of commands to establish a minimum routing update interval of 60 seconds for all neighbors?

  A. R-3(config-router)#neighbor advertisement-interval 60
  B. R-3(config-router)#neighbor 172.25.25.25 advertisement-interval 60 R-3(config-router)#neighbor 172.25.22.22 advertisement-interval 60 R-3(config-router)#neighbor 172.23.23.23 advertisement-interval 60
  C. R-3(config-router)#bgp neighbor advertisement-interval 60
  D. R-3(config-router)#timersbgp 60 60 60
  B. R-3(config-router)#neighbor 172.25.25.25 advertisement-interval 60 R-3(config-router)#neighbor 172.25.22.22 advertisement-interval 60 R-3(config-router)#neighbor 172.23.23.23 advertisement-interval 60

• Question 43:

  What state will a BGP session move to immediately after the router sends a BGP Open message to its neighbor?

  A. OpenConfirm
  B. OpenSent
  C. active
  D. idle
  E. established
  B. OpenSent

• Question 44:

  Router # show ip bgp 172.31.1.0

  BGP routing table entry for 172.31.1.0/24, version 15 Paths: (2 available, best #2, table Default-IF-Routing-Table)

  Advertised to non peer-group peers:

  10.1.0.2 10.200.200.3 10.200.200.4 172.31.11.1

  172.31.1.1 from 10.1.0.2 (10.200.200.2)

  Origin IGP, metric 0, localpref 100, valid, internal 65100

  172.31.1.1 from 172.31.1.1 (172.31.1.1)

  Origin IGP, metric 0, localpref 100, valid, external, best

  Based on the output shown in the exhibit, which two statements are correct? (Choose two)

  A. TheeBGP route to 172.31.1.0/24 is preferred over the iBGP route to 172.31.1.0/24.
  B. 172.31.1.1 is aniBGP peer.
  C. 10.1.0.2 is aniBGP peer.
  D. 10.200.200.3 is aneBGP peer.
  A. TheeBGP route to 172.31.1.0/24 is preferred over the iBGP route to 172.31.1.0/24.
  C. 10.1.0.2 is aniBGP peer.

• Question 45:

  In the diagram, the customer is using BGP to connect to a single ISP over two permanent links. In this scenario, which input and output prefix-list filtering is typically enabled on the ISP routers? (Choose two.)

  

  A. ip prefix-list test-in permit 0.0.0.0/0
  B. ip prefix-list test-in permit 10.0.0.0/8 le 32
  C. ip prefix-list test-out permit 10.0.0.0/8 le 32
  D. ip prefix-list test-out permit 10.1.1.0/24 le 32
  E. ip prefix-list test-in permit 10.1.1.0/24 le 32
  F. ip prefix-list test-out permit 0.0.0.0/0
  E. ip prefix-list test-in permit 10.1.1.0/24 le 32
  F. ip prefix-list test-out permit 0.0.0.0/0

• Question 46:

  In the user of hierarchical route reflector design, what is the maximum number of route reflectors that can be configured?

  A. 1
  B. 2
  C. 3
  D. no limit
  D. no limit

• Question 47:

  A Transit AS contains 10 routers. To enable full mesh IBGP within that Transit AS, how many IBGP sessions are required?

  A. 10
  B. 28
  C. 45
  D. 50
  C. 45

• Question 48:

  Refer to the exhibit. Service provider A (AS 123) has an EBGP session to the customer where the AS number 65053 is used at the customer end. Service provider B (AS 234) also has an EBGP session to the customer where the AS number 65286 is used at the customer end. The customer decides to use AS 65053 internally. All router BGP configuration lines have 65053 as the AS number. The customer uses AS number 65286 only when establishing the EBGP session to AS

  234. In this case, which is the correct configuration?

  

  A. The neighbor {ip-address} local-as {private-as} command is needed on the customer router that is connected to Service Provider B.
  B. The neighbor {ip-address} local-as {private-as} command is needed on the Service Provider router in AS 123.
  C. The neighbor {ip-address} local-as {private-as} command is needed on the Service Provider router in AS 234.
  D. The neighbor {ip-address} local-as {private-as} command is needed on the customer router that is connected to Service Provider A.
  A. The neighbor {ip-address} local-as {private-as} command is needed on the customer router that is connected to Service Provider B.

• Question 49:

  DRAG DROP

  Select and Place:

  

  

• Question 50:

  Which Cisco IOS command is used to view the amount of CPU resources consumed (utilization) due to running BGP processes?

  A. show ipbgp process
  B. show memory | include BGP
  C. show processcpu | include BGP
  D. show ip protocols | include BGP
  C. show processcpu | include BGP