4A0-103 Nokia Alcatel-Lucent Multi Protocol Label Switching exact Exam Questions

Alcatel-Lucent Multi Protocol Label Switching

Last Update 2 hours ago Total Questions : 249

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Question # 21

Click on the exhibit.

An LSP path is established on router R1 toward router R6. If there is a problem on router R4, but the link between R2 and R4 remains up, which of the following will affect the failure detection time?

The time router R2 takes to receive a PATH Error message from router R4.

The time router R2 takes to find out a number of RSVP Hello messages have been missed.

The time router R2 takes to send a PATH Tear message to the head-end router.

The time router R2 takes to receive a PATH message from router R4 after a PATH refresh interval.

Question # 22

Which MPLS mode saves only active label mappings received from peer LSRs?

Conservative label retention

Liberal label retention

Downstream on demand

Downstream unsolicited

Question # 23

Click on the exhibit.

RSVP session state for LSP 1 has timed out on router R3. Which of the following actions will router R3 initiate to clear the RSVP session?

Send a PATH Tear message toward router R6.

Send a PATH Tear message toward router R1.

Send a PATH Error message toward router R6.

Send a PATH Error message toward router R1.

Question # 24

Initially, all ports on an Alcatel-Lucent 7750 SR have 10Gbps bandwidth. RSVP configuration limits reservable bandwidth to 30 percent on all interfaces. An LSP is signaled reserving 1 Gbps bandwidth. How much unreserved bandwidth is left on the interface?

10 Gbps

7 Gbps

3 Gbps

2 Gbps

Question # 25

Which of the following is NOT required when configuring an LSP with an admin group constraint on an Alcatel-Lucent 7750 SR?

Enable traffic engineering on all routers along the LSP path.

Enable CSPF on the head-end router.

Configure a path definition on all routers along the LSP path.

Enable MPLS and RSVP on all routers along the LSP path.

Question # 26

Which MPLS label mode saves label mappings received from all peer LSRs?

Conservative label retention

Liberal label retention

Downstream on demand

Downstream unsolicited

Question # 27

Click on the exhibit.

An LDP tunnel is established on R1-R2-R4-R6 because the link between routers R3 and R6 is down. With the LDP-IGP Sync feature enabled, what happens immediately after the link is restored?

A new LDP session is established on R1-R3-R6 as soon as the FIB is updated.

The LDP session remains unchanged until the existing path R1-R2-R4-R6 goes down.

A new LDP session is established on R1-R3-R6 as soon as router R1 receives a new label for router R6.

The LDP session remains unchanged until router R3 stops advertising the maximum metric for the link to router R6.

Question # 28

Click on the exhibit.

An LDP tunnel is established on router R1 towards router R6. The link between routers R2 and R4 goes down. What will happen to the MPLS data traffic to router R6 IMMEDIATELY after the link goes down?

MPLS data traffic will be discarded until the IGP finds a new next-hop to router R3.

MPLS data traffic will be discarded unless the LDP tunnel has a standby secondary path.

MPLS data traffic will not be discarded because router R1 received labels from both next-hops, routers R2 and R3.

MPLS data traffic will not be discarded because of fast reroute capability on router R2.