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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

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:

A.

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

B.

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

C.

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

D.

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

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Question 2

Which of the following regarding MPLS Encapsulation is FALSE?

Options:

A.

The customer's Layer 2 header is preserved at the iLER for Layer 2 services.

B.

The customer's Layer 2 Header is preserved at the iLER for Layer 3 services.

C.

The service provider's Layer 2 header is added at the iLER for Layer 2 services.

D.

The service provider's Layer 2 header is added at the iLER for Layer 3 services.

Question 3

Click on the exhibit.

Initially, all links along the path R1-R2-R4-R6 have 400Mbps unreserved bandwidth and all links along the path R1-R3-R5-R6 have 800Mbps unreserved bandwidth. Shared Explicit reservation style is used and Make-Before-Break is enabled. Both fully loose LSPs have been signaled as shown. Later, the configured bandwidth for LSP-1 is changed to 400Mbps. Which of the following is TRUE?

Options:

A.

After a new path for LSP-1 is established on R1-R3-R5-R6, the old path is torn down.

B.

After the old path for LSP-1 is torn down, the new path is established on R1-R3-R5-R6.

C.

LSP-1 will stay on R1-R2-R4-R6 because there is enough bandwidth on the existing path.

D.

LSP-1 will be torn down because CSPF fails to find a new path.