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4A0-103 Exam Dumps : Alcatel-Lucent Multi Protocol Label Switching

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Alcatel-Lucent Multi Protocol Label Switching Questions and Answers

Question 1

Click on the exhibit.

An LSP path is established on router R1 toward router R6. After router R4 detects that the link between routers R4 and R6 goes down, which of the following will affect the failure propagation time?

Options:

A.

The time router R4 takes to send a PATH Error message toward the head-end router.

B.

The time router R4 takes to detect RSVP Hello message timeout from router R6.

C.

The time router R4 takes to send a RESV Error message to the head-end router.

D.

The time router R1 takes to signal an alternate path through router R3.

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Question 2

Click on the exhibit.

The path of a fast reroute protected LSP is R1-R2-R3. Which of the following about the protected LSP path is TRUE?

Options:

A.

All routers along the path, R1, R2, and R3 can be PLRs.

B.

If the R1-R2 link fails, router R4 becomes an MP.

C.

If the R2-R3 link fails, router R3 becomes a PLR.

D.

Router R1 is the LSP head-end and can be a PLR.

Question 3

Which of the following is TRUE when the explicit null is implemented?

Options:

A.

The penultimate router will forward packets to the eLER, based on the IP header.

B.

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

C.

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

D.

The penultimate router will pop the top label from the packets.