4A0-103 Premium Exam Questions

Nokia Multi Protocol Label Switching Questions and Answers

Question 33

Click on the exhibit.

An LDP-over-RSVP tunnel is established between routers R1 and R6. There is a VPN service running between routers R1 and R6. Which of the following is TRUE?

Options:

Router R3 swaps both the RSVP-TE LSP label and LDP transport label received with new labels.

Router R3 swaps the VPN service label received with a new label.

Router R3 uses the same RSVP-TE LSP label as the one received from router R2.

Router R3 uses the same LDP transport label as the one received from router R2.

Question 34

All links have 1Gbps unreserved bandwidth initially and all LSPs have the least-fill feature enabled. After the two LSPs have been signaled as shown, two new LSPs are configured. LSP-3 is signaled first with 600Mbps reserved. LSP-4 is signaled after with 800Mbps reserved. All LSPs have the same setup and hold priorities. Which paths will CSPF choose for LSP-3 and LSP-4?

Options:

LSP-3 takes R1-R3-R5-R6 and LSP-4 takes R1-R2-R4-R6.

LSP-3 takes R1-R2-R4-R6 and LSP-4 takes R1-R3-R5-R6.

LSP-3 takes R1-R3-R5-R6 and LSP-4 has no available path.

LSP-3 takes R1-R2-R4-R6 and LSP-4 has no available path.

Question 35

Which of the following best describes downstream unsolicited label distribution?

Options:

An LSR may answer requests for label mappings immediately, without waiting for a label mapping from the next-hop.

An LSR may advertise label mappings to all peers for which it might be a next-hop for a given FEC.

An LSR propagates a label mapping downstream for a FEC, only if it has a label mapping for the FEC next-hop.

An LSR will only distribute a label for a FEC when it has been requested to do so.

Question 36

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:

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

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

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

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

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Nokia Multi Protocol Label Switching Questions and Answers

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