Nokia Nokia Certifications 4A0-102 Questions & Answers

• Question 101:

  Click the exhibit.

  

  Given the following configuration for router R1, what is the expected Next Hop for prefix 192.168.1.0/27 as seen on router R2?

  

  A. 10.0.2.1

  B. 10.0.2.2

  C. 10.16.10.1

  D. 10.16.10.3

  Correct Answer: B

• Question 102:

  Which of the following statements regarding BGP route selection is TRUE?

  A. Lower local preference is preferred over higher local preference.

  B. Higher MED is preferred over lower MED.

  C. Higher origin code is preferred over lower origin code.

  D. Lower BGP router ID is preferred over higher BGP router ID.

  Correct Answer: D

• Question 103:

  Click the exhibit.

  

  Routers RR1 and RR2 are route reflectors with the same Cluster-ID. When the update for prefix 192.168.1.0/27 is received at router RA2, what are the Originator_ID and Cluster_List attributes?

  A. Originator_ID of RR1; and Cluster_List of 10.16.10.1.

  B. Originator_ID of RX; and Cluster_List of 10.16.10.1.

  C. Originator_ID of RR1; and the Cluster_List is not set.

  D. Neither the Originator_ID nor the Cluster_List is set.

  Correct Answer: D

• Question 104:

  Click the exhibit.

  

  An update travels from AS 135000 to AS 137000, traversing both 32-bit and 16-bit AS paths. What will the AS Path be when the update reaches AS 137000?

  A. 140000 200 135000

  B. 137000 140000 200 135000

  C. 140000 23456 135000 D. 135000 200 140000

  Correct Answer: A

• Question 105:

  Click the exhibit.

  

  Which of the following can be used by router R4 in AS 65542 to reject all routes originating in AS 65540?

  A. An import policy that rejects updates with an AS Path matching the regular expression ".+ 65540 .+".

  B. An import policy that rejects updates with an AS Path matching the regular expression ".+ 65540".

  C. An import policy that rejects updates with an AS Path matching the regular expression "65540 .+".

  D. An import policy that rejects updates with an AS Path matching the regular expression "65540".

  Correct Answer: B

• Question 106:

  Click the exhibit.

  

  Assuming the network is IPv6 only, which of the following configurations on the Alcatel- Lucent 7750 SR router A can establish an IPv6 BGP session to router B?

  

  A. Option A

  B. Option B

  C. Option C

  D. Option D

  Correct Answer: A

• Question 107:

  Click the exhibit.

  

  Router R1 is a route reflector with clients R2, R5 and R6. Prefixes advertised by router R5 have a local preference of 200. Router R3 advertises the prefix 192.168.1.0/27 to routers R5 and R6.

  Assuming that none of the routers in AS 65540 is configured with "advertise-external", what is the expected output of "show router bgp routes" on router R2?

  A. Option A

  B. Option B

  C. Option C

  D. Option D

  Correct Answer: A

• Question 108:

  Click the exhibit.

  

  Router R1 is advertising prefix 192.168.1.0/27 with community "no-export. Which routers will receive an update for that prefix?

  A. Router R2 only.

  B. Routers R2 and R3 only.

  C. Routers R2, R3 and R4 only.

  D. Routers R2, R3, R4and R5.

  Correct Answer: D

• Question 109:

  A router in AS 65100 receives two BGP routes. The first route is for 138.1.1.0/24 with an AS Path of 65200 65300, Local Preference of 100, MED of 100, and router ID 10.10.10.10. The second route is for 138.1.0.0/16 with an AS Path of 65500 65300, Local Preference of 150, MED of 100, and router ID

  10.1.1.1. Assuming all other attributes are equal, which route would be used to forward an IP packet with destination IP address 138.1.1.1?

  A. The first BGP route.

  B. The second BGP route.

  C. Both routes are used.

  D. It is impossible to determine without the value of the origin code for both routes.

  Correct Answer: A

• Question 110:

  Which of the following is TRUE if the state of one BGP neighbor shows Active?

  A. The neighbor will send a Keepalive message.

  B. The router is trying to initiate a TCP connection to that neighbor.

  C. The router received an Open message with the correct parameters.

  D. The router is actively exchanging updates with that neighbor.

  Correct Answer: B