Nokia Nokia Certifications 4A0-C01 Questions & Answers

• Question 501:

  Which of the following about configuring an LSP path definition on an Alcatel-Lucent 7750 SR is FALSE?

  A. A path definition can have both loose and strict hops.

  B. A path definition can be configured with loose hops only.

  C. A path definition is configured on the head-end router only,

  D. A path definition is not required if CSPF is enabled on an LSP.

  Correct Answer: D

• Question 502:

  Which of the following commands is used to configure a new MPLS SDP?

  A. configure router sdp sdp-id

  B. configure service sdp sdp-id create

  C. configure service mpls sdp sdp-id create

  D. configure service gre sdp sdp-id create

  E. configure service sdp sdp-id mpls create

  Correct Answer: E

• Question 503:

  What is a key benefit of a VPLS service?

  A. The customer maintains complete control over routing.

  B. The adding of new sites is simplified; no re-configuration is required at existing sites.

  C. The clear demarcation of functionality between service provider and customer makes troubleshooting easier.

  D. All of the above.

  Correct Answer: D

• Question 504:

  Which of the following statements best describes the purpose of an MP-BGP in a VPRN?

  A. Routes from different customers with the same IPv4 address prefix are treated as equivalents by MPBGP.

  B. Alcatel-Lucent 7750 SR routers support MP-BGP for VPN label signaling in a VPRN service only if LDP is used for LSP signaling.

  C. The multi-protocol nature of MP-BGP allows VPRN routes to be distributed within the provider core network as IPv4 routes.

  D. MP-BGP is an enhanced version of BGP that can carry a service label, a tranpot label, and customer route prefixes.

  E. None of the above statements describe the use of an MP-BGP in a VPRN.

  F. All of the above statements describe the use of an MP-BGP in a VPRN.

  Correct Answer: E

• Question 505:

  A technician sitting in a Network Operations Center would like to set up a remote mirror on an Alcatel-Lucent 7750 Service Router to examine some data traffic ingressing a port at a remote site. Which of the following are required? (Choose 2)

  A. A mirror destination on the local and remote Alcatel-Lucent Service Router,

  B. A mirror source on the local and remote Alcatel-Lucent Service Router.

  C. A mirror source with the remote source specified on the remote Alcatel-Lucent Service Router.

  D. A mirror source with the remote source specified on the local Alcatel-Lucent Service Router.

  E. An SDP between the local and remote Alcatel-Lucent Service Routers.

  Correct Answer: AE

• Question 506:

  Router R3 signals an LSP, reserving 1Gbps bandwidth on a 10Gbps link. RSVP configuration limits reservable bandwidth to 20 percent on the egress interface. Which of the following statements is true?

  A. The egress RSVP interface has 80 percent bandwidth unreserved.

  B. LSPs can reserve an additional 9.9 Gbps bandwidth on this RSVP interface.

  C. The head end reserves 100Mbps for the LSP.

  D. The egress RSVP interface has 1Gbps bandwidth unreserved.

  Correct Answer: D

• Question 507:

  Which of the following devices assumes the active role during the establishment of an LDP session?

  A. The peer with the higher physical address.

  B. The peer with the higher transport address.

  C. The peer with the lower physical address.

  D. The peer with the lower transport address.

  E. The peer that generated the first Hello message.

  Correct Answer: B

• Question 508:

  Which of the following about an ERO in an RSVP PATH message is FALSE?

  A. ERO is used by downstream routers to determine the next-hop for the LSP.

  B. ERO contains label information used to signal an LSP path.

  C. ERO is not always present in the PATH message.

  D. Each downstream router updates information inside the ERO.

  Correct Answer: B

• Question 509:

  Which of the following statements regarding per-platform label space are true? Choose two answers.

  A. A separate label is used for each interface that the FEC is advertised on.

  B. It uses fewer label resources than a per-interface label space.

  C. It is typically used when the device has ATM or Frame Relay interfaces.

  D. It uses more label resources than a per-interface label space.

  E. A single label may be assigned to an FEC and used across all interfaces of the same router.

  F. It is only valid when the LDP peers are directly connected over an interface, and the label is only going to be used for traffic sent over that interface.

  Correct Answer: BE

• Question 510:

  Click on the exhibit button below.

  

  Consider the output shown; why is the label in bold font not in use?

  A. The router cannot do a SWAP of this label.

  B. The label does not match the egress label for the same FEC.

  C. The label is for a FEC for which the next-hop is the peer router

  D. The label was signaled in error.

  Correct Answer: C