Nokia Nokia Certifications 4A0-C01 Questions & Answers

• Question 701:

  What type of packet will cause an OSPF router to respond with a link-state request packet?

  A. Hello

  B. Link-state request

  C. Link-state acknowledgment

  D. Link-state update

  E. Database description

  Correct Answer: E

• Question 702:

  What MPLS function should be performed by a router that receives a data packet containing an MPLS label value of 3?

  A. A router will never receive a packet containing this label value.

  B. Request a new label from the peer that provided this label.

  C. Pop the label.

  D. PUSH an additional label onto the label stack.

  E. Signal a new label to the peer that sent the packet.

  Correct Answer: A

• Question 703:

  You wish to build an LSP originating on router R1, transiting the path R1-R2-R4-R5-R6, and terminating on router R6. How many strict hops would you define in your path statement?

  A. 4

  B. 1

  C. 5

  D. 6

  Correct Answer: A

• Question 704:

  Which of the following are characteristics of ECMP LSPs in LDP? Choose three answers

  A. Liberal label retention mode

  B. T-LDP enabled with peers to which load balancing is desired.

  C. ECMP enabled in the config>router context.

  D. Hashing used to select the egress label.

  E. Export policy applied to advertise multiple labels for a given FEC.

  Correct Answer: ACE

• Question 705:

  When IS-IS is electing a DIS, what is used as the tie breaker on an Alcatel-Lucent 7750 SR, if the priorities are the same?

  A. The system ID

  B. The loopback address

  C. The sequence number of the Hello packet

  D. The device that first initiated communication becomes the DIS

  E. The highest interface MAC address

  Correct Answer: E

• Question 706:

  Router R4 originates 500 RSVP signaled LSPs with default hello and refresh timer settings If the only downstream communication fails (link is operationally UP), how long will RSVP wait before it declares the RSVP sessions down?

  A. 3000ms

  B. 9000ms

  C. 30000ms

  D. 120000ms

  Correct Answer: B

• Question 707:

  Click on the exhibit.

  

  An OSPFv3 router is attached to a non-OSPF domain that includes networks 2001:DB8:8::/64.2001 .DB8:9::/64 and 2001 :DB8:A::/64. Other routers in the OSPF domain see the prefix 2001, DB8:8::/64, but not the other two prefixes.

  What could cause this?

  A. The router is not configured as an asbr.

  B. The router is not configured as an NSSA.

  C. The export policy is not applied to OSPFv3.

  D. The prefix list should be 2001:DB8:8::/46

  Correct Answer: D

• Question 708:

  How many bits of the MPLS header are used for the label field?

  A. 16

  B. 20

  C. 24

  D. 25

  E. 32

  Correct Answer: B

• Question 709:

  Which of the following is defined by the following statement? All label mappings received from all peer LSRs are saved.

  A. Conservative label retention

  B. Liberal label retention.

  C. Downstream on demand.

  D. Downstream unsolicited.

  Correct Answer: B

• Question 710:

  Which OSPFv3 LSA advertises an ASBR?

  A. AS Summary

  B. Inter-Area Network

  C. Inter-Area Router

  D. Intra-Area Prefix

  Correct Answer: C