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Free Nokia 4A0-103 Practice Exam with Questions & Answers | Set: 6

Questions 51

Which of the following statements regarding per-platform label space are true? Choose two answers.

Options:
A.

A separate label is used for each interface that the FEC is advertised on.

B.

It uses fewer label resources than a per-interface label space.

C.

It is typically used when the device has ATM or Frame Relay interfaces.

D.

It uses more label resources than a per-interface label space.

E.

A single label may be assigned to an FEC and used across all interfaces of the same router.

F.

It is only valid when the LDP peers are directly connected over an interface, and the label is only going to be used for traffic sent over that interface.

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Questions 52

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4A0-103 Question 52

Under which condition might the peer LDP ID 10.10.10.2:0 entry show state "Nonexistent"?

Options:
A.

When the interface to the peer router is down.

B.

When router R1 has no route to the peer address 10.10.10.2.

C.

When the adjacency between the two routers fails.

D.

When the targeted session is not yet configured.

Questions 53

In MPLS, how is the label range 0 ?15 used?

Options:
A.

Static LSPs

B.

Reserved use

C.

Vendor proprietary use

D.

Management LSPs

E.

Dynamic LSPs

Questions 54

Router R3 signals an LSP, reserving 1Gbps bandwidth on a 10Gbps link. RSVP configuration limits reservable bandwidth to 20 percent on the egress interface. Which of the following statements is true?

Options:
A.

The egress RSVP interface has 80 percent bandwidth unreserved.

B.

LSPs can reserve an additional 9.9 Gbps bandwidth on this RSVP interface.

C.

The head end reserves 100Mbps for the LSP.

D.

The egress RSVP interface has 1Gbps bandwidth unreserved.

Questions 55

Which of the following LDP messages are used in the successful establishment of LDP sessions? Choose three answers

Options:
A.

Label request message

B.

Notification message

C.

Address message

D.

Keepalive message

E.

Initialization message

F.

Hello message

Questions 56

Which of the following about per-interface label space is TRUE?

Options:
A.

A single label is assigned to a FEC for all interfaces on the same router.

B.

The same label can be used to forward a packet on an LSR regardless of which egress port is used.

C.

It uses fewer label resources than a per-platform label space.

D.

A separate label is used for each interface that the FEC is advertised on.

Questions 57

Which of the following timers can be adjusted to reduce the time a router waits between attempts to re-establish an LSP after it has failed?

Options:
A.

Isp retry-timer

B.

Isp retry-limit

C.

mpls resignal-timer

D.

rsvp refresh-time

E.

router rsvp keep-multiplier

Questions 58

What is the significance of receiving a packet with the bottom MPLS label S bit set to 1?

Options:
A.

It results in forwarding based on the next packet header.

B.

It indicates that the label is the bottom of the MPLS label stack.

C.

It indicates that the label is the top of the MPLS label stack.

D.

Any LSR that receives an S bit set to 1 must discard the packet.

Questions 59

Which of the following statements best describes downstream unsolicited label distribution?

Options:
A.

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

B.

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

C.

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

D.

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

Questions 60

Which of the following reservation styles can be used to prevent both the primary and secondary paths from booking resources on a common link?

Options:
A.

Fixed filter

B.

Shared explicit

C.

Standby explicit LSP

D.

Preemptive filter

E.

Link capacity filter

Exam Code: 4A0-103
Certification Provider: Nokia
Exam Name: Alcatel-Lucent Multi Protocol Label Switching
Last Update: Mar 28, 2025
Questions: 249

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