4A0-103 Online Practice Questions and Answers

Click on the exhibit button below.

Assuming that LSP R1-R2-R3 requests the default fast reroute configuration, which router becomes a DMP for the detour tunnels?

A. Router R1

B. Router R2

C. Router R3

D. Router R4

E. Router R5

Assume that, on the Alcatel-Lucent 7750 SR, an LSP is configured with one-to-one FRR and node protection. Which of the following statements are FALSE? (Choose two)

A. Each PLR signals a detour LSP that avoids the downstream node. If the downstream node cannot be avoided, a detour LSP that avoids the downstream link is signaled.

B. The detour LSP can take one or more hops before merging back on the protected LSP.

C. The merge point of the protected LSP must be the next-next-hop node

D. The ingress router will set the local protection desired flag in the session attribute object of the path message to inform all routers along the protected LSP path to establish detour LSPs.

E. The label recording desired flag must be set in the session attribute object in order for the PLR to know what label to swap when using the detour LSP.

Click on the exhibit button below.

With fast reroute enabled, and given the following:

The protected LSP path is R1-R2-R3.

All links are of equal cost.

Which of the following statements is true? (Choose two)

A.

Router R1 is the LSP originator and is also a PLR.

B.

With one-to-one link or node protection, the detour LSP path is R1-R4-R5-R2-R3.

C.

With one-to-one link or node protection, the detour LSP path is R1-R4-R5-R3.

D.

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

E.

None of the nodes can be protected with FRR.

Which of the following statements regarding LSP path configuration are true? (Choose three)

A. The path must include at least one hop.

B. The path may be used multiple times in a single LSP.

C. The path may comprise loose hop entries only.

D. The path must define the LSP's tail end.

E. The path may be used for multiple LSPs.

Click on the exhibit.

Initially, all links have 800Mbps of unreserved bandwidth. All links are of equal costs. Shared explicit reservation style is used. LSP 1 is signaled first with a setup and hold priority of 2. Then, LSP 2 is signaled with setup and hold priority of 5. Both LSPs go from R1 to R5. Which of the following is TRUE?

A. LSP 1 will follow R1-R3-R4-R5. LSP 2 will follow R1-R2-R5.

B. LSP1 will follow R1-R2-R5. LSP 2 will follow R1-R3-R4-R5.

C. Both LSP 1 and LSP 2 will follow R1-R2-R5.

D. Both LSP 1 and LSP 2 will follow R1-R3-R4-R5.

Which of the following regarding the MPLS SWAP label operation is TRUE?

A. The inner label will be exchanged with the MPLS outer label.

B. The inner label will be exchanged for a new label.

C. The outer label will be exchanged for a new label.

D. All labels will be exchanged for one new label.

E. All labels will be exchanged for an equal number of new labels.

Which of the following about RSVP-TE LSP configuration in a Alcatel-Lucent 7750 SR is TRUE?

A. LSPs must always terminate on a system ID.

B. MPLS and RSVP must be enabled on all LSRs.

C. CSPF must be enabled.

D. Path definitions must include at least one hop entry.

Click on the exhibit.

After the Isp-ping command is executed, which of the following best describe the router's action?

A. MPLS Echo Request packets are sent unlabeled to the prefix 192.10.1.2.

B. MPLS Echo Request packets are sent within the LDP tunnel that are signaled for 192.10.1.2.

C. MPLS Echo Request packets are sent within the RSVP-TE tunnel that are signaled for 192.10.1.2.

D. MPLS Echo Request packets are sent over TCP.