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Question 1

What is the purpose of a T-LDP session?

Options :

A : It allows link LDP to be configured on the edge devices only

B : It is used to signal the transport labels in the provider core

C : It allows selective control over which devices are configured for LDP

D : It is used to signal the service labels in the provider core

Answer: D

Question 2

Which of the following devices inspects the MPLS header in the received packet, and exchanges it for a new MPLS header?

Options :

A : iLER

B : LER

C : LSR

D : PE

Answer: C

Question 3

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 4

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 5

Which of the following best describes the flooding of traffic on a PE when unknown traffic is received on a mesh SDP?

Options :

A : Traffic is flooded to all SAPs in the service.

B : Traffic is flooded to all SAPs and spoke SDPs in the service

C : Traffic is flooded to all SAPs and mesh SDPs in the service

D : Traffic is flooded to all SAPs, spoke SDPs, and mesh SDPs in the service

Answer: B