Question 1

Which of the following is a function of the control plane in an MPLS router?

Options :

A : Label swapping

B : Pushing a label on an unlabeled packet

C : Label allocation

D : Routing lookups

Answer: C

Question 2

Which default LDP parameter are you able to change with CLI?

Options :

A : Label space mode

B : Label retention

C : Control mode

D : Keepalive factor

Answer: D

Question 3

Which of the following statements is true when the implicit null is implemented?

Options :

A : The penultimate router will POP the top label from the packets.

B :

The eLER will receive packets with a top label value of 3.

C :

The eLER will receive packets with a top label value of 0.

D :

The penultimate router will always receive unlabeled packets.

E :

The penultimate router performs a double lookup on the packet.

Answer: A

Question 4

Which of the following are the default settings for the Alcatel-Lucent 7750 SR when using LDP?

Options :

A : Ordered control mode; downstream on demand.

B : Ordered control mode; downstream unsolicited.

C : Independent control mode; downstream on demand.

D : Independent control mode; downstream unsolicited.

Answer: B

Question 5

Which of the following about an LSP protected with facility FRR is TRUE?

Options :

A : The LSP can use protection tunnels used by other LSPs.

B : The LSP can use facility and one-to-one FRR simultaneously.

C : The LSP is limited to link protection.

D : A detour protection tunnel is created for this LSP.

Answer: A

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