Nokia Nokia Certifications 4A0-C01 Questions & Answers

• Question 681:

  Which of the following best describes the forwarding of a IPv6 packet that has a destination anycast address?

  A. It is sent to all nodes on the local link.

  B. It is sent to all nodes on the local network.

  C. It is sent to all nodes that have joined the anycast group.

  D. It is sent to the nearest node that is assigned the anycast address

  E. It is sent to all nodes that are assigned the anycast address.

  Correct Answer: D

• Question 682:

  Click on the exhibit.

  

  The numbers beside the links are the metrics for that link.

  Given the diagram, what path will traffic follow from router R2 to router R8, and from router R8 to router R2, if IS-IS is the routing protocol?

  A. Router R2 to router R8 will follow (R2-R3-R5-R7-R8). Router R8 to R2 will follow (R8- R7-R5-R3-R2)

  B. Router R2 to router R8 will follow (R2-R3-R4-R6-R7-R8). Router R8 to R2 will follow (R8-R7-R6-R4R3-R2)

  C. Router R2 to router R8 will follow (R2-R3-R5-R7-R8). Router R8 to R2 will follow (R8- R7-R6-R4-R3R2)

  D. Router R2 to router R8 will follow (R2-R3-R4-R6-R7-R8) Router R8 to R2 will follow (R8- R7-R5-R3R2)

  Correct Answer: A

• Question 683:

  What is the common usage of the MPLS EXP bits?

  A. Each implementation can use them as they see fit.

  B. They are used to carry the Ethertype value.

  C. They are used to carry the TTL value.

  D. They are used to carry QoS classification.

  E. They are used to carry fragmentation flag information

  Correct Answer: D

• Question 684:

  How does MPLS-TE overcome the issue of IP hyper-aggregation?

  A. By enabling the creation of LSPs across alternate links to balance the network traffic.

  B. By eliminating the requirement for core IP routing.

  C. By not allowing more than one LSP to use a particular path.

  D. By defining multiple LSPs across a network and implementing an IGP load balancing algorithm across them.

  Correct Answer: A

• Question 685:

  Click on the exhibit.

  

  Assuming point-to-point links, which of the following is TRUE?

  A. Routers R1 and R2 are L2 routers. Routers R3 and R4 are L1/L2 routers.

  B. Routers R1, R2, and R4 are L1/L2 routers Router R3 is an L1 router.

  C. Routers R1, R2, and R3 are L2 routers. Router R4 is an L1 router.

  D. Routers R1 and R2 are L1/L2 routers. Routers R3 and R4 are L1 routers.

  Correct Answer: D

• Question 686:

  Click on the exhibit button below.

  

  LSP 1's link between routers R3 and R6 has failed, and the RESV state at router R3 has timed out. Which of the following actions will router R3 initiate?

  A. Send a Path Tear message towards router R6.

  B. Send a Path Tear message towards router R1.

  C. Send a Resv Tear message toward router R6.

  D. Send a Resv Tear message toward router R1.

  Correct Answer: D

• Question 687:

  Click on the exhibit.

  

  The operator of an IS-IS network wishes to have link metrics dynamically calculated in the same manner as OSPF. The router with system address 10.10.10.1 is one hop away on a 1Gbps link

  Which of the following is correct?

  A. The router is correctly configured.

  B. Neither a reference-bandwidth nor wide-metrics is configured on the router.

  C. A reference-bandwidth is configured on the router but wide-metrics is not.

  D. Wide-metrics is configured on the router but a reference-bandwidth is not.

  Correct Answer: C

• Question 688:

  Which of the following is a type of authentication that is supported by OSPF on the Alcatel- Lucent 7750 SR?

  A. Challenge handshake authentication protocol (CHAP)

  B. Two factor authentication

  C. MD5 authentication

  D. Extensible authentication protocol (EAP)

  Correct Answer: C

• Question 689:

  Which type of LSA packets describe external routes originated within an NSSA area, and to what type are they converted to at the ABR?

  A. They are Type 7 within the area and are not modified at the ABR.

  B. They are Type 5 within the area and converted to Type 3 at the ABR.

  C. They are Type 5 within the area and are not modified at the ABR.

  D. They are Type 7 within the area and converted to Type 5 at the ABR.

  Correct Answer: D

• Question 690:

  How is the DR selected when an OSPF router is added to a broadcast network?

  A. The current DR is selected, if there is one. Otherwise, the router with the lowest priority is the DR. If priorities are the same, the DR is chosen based on the lowest RID.

  B. The current DR is selected, if there is one. Otherwise, the router with the highest priority is the DR. If priorities are the same, the DR is chosen based on the highest RID.

  C. The router with the lowest priority is the DR. If priorities are the same, the current DR is selected. Otherwise the DR is chosen based on the lowest RID.

  D. The router with the highest priority is the DR. If priorities are the same, the current DR is selected. Otherwise the DR is chosen based on the highest RID.

  Correct Answer: B