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

Using facility mode fast reroute, how does the PLR learn the address of the MP?

Options :

A : The PLR issues an RSVP PATH message to the tail-end requesting the address of the MP.

B : The PLR learns the address of the MP from the ERO

C : The PLR learns the address of the MP from the RRO.

D : The PLR learns the address of the MP from the targeted RSVP Hello message.

E : The PLR knows the address of the MP is the same as the tail-end router.

Answer: C

Question 3

How does MPLS-TE overcome the issue of IP hyper-aggregation?

Options :

A : By enabling the creation of LSPs across alternate links to balance the network traffic.

B : By eliminating the requirement for core IP routing

C : By not allowing more than one LSP to use a particular path.

D :

By defining multiple LSPs across a network and implementing an IGP load balancing algorithm across

them.

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

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An LSP traverses R1-R2-R4-R6 and one-to-one fast reroute with link protection is enabled. All links have the

same cost. Which of the following about DMP and MP is TRUE?

Options :

A :

R3 and R5 become DMPs; R6 becomes MP.

B :

R3 and R5 become DMPs; R4 becomes MP.

C :

R3, R5, and R6 become DMPs; R4 becomes MP.

D : R1, R3, and R5 becomes DMPs; R4 and R6 become MPs.

Answer: A