Nokia Nokia Certifications 4A0-102 Questions & Answers

• Question 21:

  Which of the following routes is NOT considered an internal route?

  A. A route received from a BGP peer within the same AS.

  B. A route originated by a router in a different cluster of the same AS.

  C. A route received from a BGP peer from a different member AS of a confederation.

  D. A route received from a BGP peer from the same member AS of a confederation.

  Correct Answer: C

• Question 22:

  Click the exhibit.

  

  Assuming that none of the routers within AS 65200 is configured with next-hop-self", what will the BGP update for the 192.168.0.1/27 prefix contain when it arrives at router B?

  A. AS Path of 65200 65100, Next Hop of router A.

  B. AS Path of 65200 65100, Next Hop of router E.

  C. AS Path of 65100, Next Hop of router E.

  D. AS Path of 65100, Next Hop of router A.

  Correct Answer: C

• Question 23:

  Two Alcatel-Lucent 7750 SRs are established BGP peers with the following add-paths configuration: R1: configure router bgp add-paths ipv4 send 4 receive R2: configure router bgp add-paths ipv4 send 2

  If router R1 advertises three routes for a given prefix X, how many routes is router R2 expected to have for prefix X?

  A. None

  B. 2

  C. 3

  D. 4

  Correct Answer: C

• Question 24:

  Which regular expression will match the AS Path of a route originating in remote AS 65100?

  A. ".+ 65100"

  B. "65100.+"

  C. ".* 65100.*"

  D. "65100"

  Correct Answer: A

• Question 25:

  Click the exhibit.

  

  Router R1 is a route reflector with clients R2, R5 and R6. Router R3 advertises the prefix 192.168.1.0/27 to routers R5 and R6. Assuming that routers R1, R2 and R4 are configured with "add-paths ipv4 send 2 receive", what is the expected output of "show router bgp routes" when executed on router R2?

  A. Option A

  B. Option B

  C. Option C

  D. Option D

  Correct Answer: A

• Question 26:

  When implementing a BGP policy on an Alcatel-Lucent 7750 SR, which of the following types of address space would a typical address plan need to cover?

  A. RIR assigned CIDR space.

  B. External client address space.

  C. Loopback or link addresses.

  D. External link addresses.

  E. All of the above.

  Correct Answer: E

• Question 27:

  Click the exhibit.

  

  AS 65100 is advertising 192.168.1.0/27 into BGP. Which of the following AS Paths would the prefix 192.168.1.0/27 contain when viewed on router R8?

  A. 65200 (65206 65202) 65100

  B. (65206 65202)65100

  C. 65250 (65206 65202) 65100

  D. 65200 65100

  Correct Answer: D

• Question 28:

  Click the exhibit.

  

  Router R6 is a route reflector with clients R1, R2 and R5. Router R3 advertises the prefix 192.168.1.0/27 to routers R1, R2 and R5. How many routes for prefix 192.168.1.0/27 will router R6 receive?

  A. 1

  B. 2

  C. 3

  D. None

  Correct Answer: C

• Question 29:

  Click the exhibit.

  

  Router R6 is a route reflector with clients R1, R2, R4 and R5. Router R4 receives three routes from router R6 and is configured with ECMP 3. Given the following BGP configuration on routerR4, how many primary and backup paths will be present in router R4's BGP routing table?

  

  A. Three primary paths,

  B. Two primary paths and one backup path.

  C. One primary path and two backup paths.

  D. One primary path and one backup path.

  Correct Answer: B

• Question 30:

  Which of the following AS Paths will match the regular expression "65100."?

  A. "65100"

  B. "65100 65200''

  C. "65200 65100"

  D. "65100 65250 65200"

  Correct Answer: B