Nokia Nokia Certifications 4A0-C01 Questions & Answers

• Question 51:

  Which of the following best describes downstream on demand label distribution?

  A. An LSR answers requests for label mappings immediately, without wafting for a label mapping from the next-hop.

  B. An LSR advertises label mappings to all peers for which it might be a next-hop for a given FEC.

  C. An LSR distributes a label mapping for a FEC when it has been requested to do so.

  D. An LSR propagates a label mapping downstream for a FEC, only if it has a label mapping for the FEC's next-hop.

  Correct Answer: C

• Question 52:

  A service provider is deploying a 6over4 tunnel to connect a customer's branch office IPv6 network to the corporate headquarters as shown in the exhibit. Which command is used to create a default route on PE2 for the branch office network?

  

  A. configure router static-route 0.0.0.0/0 indirect 10.10.10.2

  B. configure router static-route 0.0.0.0/0 indirect 2001:DB8:l:100::l

  C. configure router static-route ::/0 indirect 10.10.10.2

  D. configure router static-route ::/0 indirect 2001:DB8:l:100::l

  E. configure router static-route ::/0 indirect 2001:DB8:l:101::l

  Correct Answer: C

• Question 53:

  Which of the following is the correct IPv6 interface identifier that is derived from the MAC address 00-164D-13-5C-AE?

  A. 0016:4DFF:FE13:5CAE

  B. 0016:4DFF:0013:5CAE

  C. 0216:4DFF:FE13:5CAE

  D. 0216:4DFF:0013:5CAE

  E. 0016:4DFE:0013:5CAE

  Correct Answer: C

• Question 54:

  Given the diagram below, what path will traffic follow from router R6 to router R3, and from router R3 to router R6, if IS-IS is the routing protocol? The numbers beside the links are the metrics for that link.

  

  A. Router R6 to router R3 will follow (R6-R5-R2-R3). Router R3 to router R6 will follow (R3-R2-R5-R6).

  B. Router R6 to router R3 will follow (R6-R5-R2-R3). Router R3 to router R6 will follow (R3-R4-R2-R5R6).

  C. Router R6 to router R3 will follow (R6-R5-R2-R3). Router R3 to router R6 will follow (R3-R4-R7-R5R6).

  D. Router R6 to router R3 will follow (R6-R5-R7-R4-R3). Router R3 to router R6 will follow (R3-R4-R7-R5R6).

  Correct Answer: C

• Question 55:

  Given the contents of the Router LSA, which of the following best describes the local topology of the router?

  

  A. The router has a system interface, one point-to-point interface and one virtual link.

  B. The router has a system interface, one passive interface, one point-to-point interface and one virtual link.

  C. The router has a system interface, one point-to-point interface and one broadcast interface.

  D. The router has a system interface, one passive interface, one point-to-point interface and one broadcast interface.

  Correct Answer: C

• Question 56:

  Which router is the backup designated router for the broadcast network?

  

  A. 10.10.10.2

  B. 10.10.10.3

  C. 10.10.10.6

  D. There is not enough information given to determine the backup designated router.

  Correct Answer: D

• Question 57:

  Given the output shown, which router is the ASBR in this network?

  

  A. 10.10.10.2

  B. 10.10.10.3

  C. 10.10.10.4

  D. 10.10.10.6

  E. There is no ASBR configured in the network.

  Correct Answer: C

• Question 58:

  Which of the following about Type 4 LSAs is FALSE?

  A. A Type 4 LSA is not generated in a single area AS.

  B. A Type 4 LSA is generated by the ABRs of the area that contains the ASBR.

  C. A Type 4 LSA advertises the external networks connected to the ASBR.

  D. A Type 4 LSA is not flooded in the area that contains the ASBR.

  Correct Answer: C

• Question 59:

  Which of the following best describes the type of packets used by OSPF routers to exchange updates on a point-to-point link?

  A. IP packets sent to an IP multicast address.

  B. TCP packets sent to an IP multicast address.

  C. Ethernet frames sent to an Ethernet MAC address.

  D. UDP packets sent to an IP multicast address.

  Correct Answer: A

• Question 60:

  Examine the physical topology of the IS-IS network, the metrics of the links and the levels of the routers. All routers have a system address included in IS-IS. Which of the following describes the route that router R4 will use to reach the system address of router R6?

  

  A. Router R4 will have a route to router R6's system address with router R2 as the next-hop.

  B. Router R4 will have a default route with router R2 as the next-hop.

  C. Router R4 will have a default route with router R3 as the next-hop.

  D. Router R4 will not have a route that can be used to reach the system address of router R6.

  Correct Answer: D