Question 1

In a Layer 2 encapsulation using T-LDP, what does the first (top) label represent?

Options :

A : Tunnel Label

B : VC Label

C : Operational Control Word

D : UNI

Answer: A

Question 2

Which of the following about CAC is FALSE?

Options :

A : CAC is used when the LSP path has not been computed by CSPF

B : CAC is used when the LSP path has been computed by CSPF

C : CAC is used to perform a bandwidth check on each egress interface of the downstream router

D : CAC is used to perform a bandwidth check based on the router-s LSDB

Answer: D

Question 3

Which of the following LDP message categories is UDP-based?

Options :

A : Notification

B : Session

C : Discovery

D : Advertisement

Answer: C

Question 4

Which of the following statements best describes downstream unsolicited label distribution?

Options :

A : An LER may answer requests for label mappings immediately, without waiting for a label mapping from the next-hop

B : An LER may advertise label mappings to all peers for which it might be a next-hop for a given FEC

C : An LER propagates a label mapping downstream for a FEC. only if it has a label mapping for the FEC next-hop

D : An LER will only distribute a label for a FEC when it has been requested to do so

Answer: B

Question 5

Which of the following about RSVP-TE LSP configuration in a Alcatel-Lucent 7750 SR is TRUE?

Options :

A : LSPs must always terminate on a system ID.

B : MPLS and RSVP must be enabled on all LSRs

C : CSPF must be enabled

D : Path definitions must include at least one hop entry

Answer: B

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