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4A0-103 Nokia Alcatel-Lucent Multi Protocol Label Switching Free Practice Exam Questions (2025 Updated)

Prepare effectively for your Nokia 4A0-103 Alcatel-Lucent Multi Protocol Label Switching certification with our extensive collection of free, high-quality practice questions. Each question is designed to mirror the actual exam format and objectives, complete with comprehensive answers and detailed explanations. Our materials are regularly updated for 2025, ensuring you have the most current resources to build confidence and succeed on your first attempt.

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Total 249 questions

Click on the exhibit button.

The policy on router R2 is applied as an LDP export policy. What FECs now appear in router R2's LIB?

A.

Local FECs, not including those in the 192.168.1.0/24 address space.

B.

Only system ID FECs may appear in the LIB.

C.

Any local FECs, except those with a 24 bit mask.

D.

Local FECs in the 192.168.1.0/24 address space

Which of the following about Alcatel-Lucent 7750 SR command "oam Isp-trace prefix" is FALSE?

A.

The router performs a unidirectional LSP test.

B.

The router collects hop information along the tunnel's path.

C.

The router uses MPLS Echo Request packets that are IP-routed,

D.

The MPLS TTL values are incremented at each request.

Click on the exhibit button below.

LSP 1's link between routers R3 and R6 has failed, and the RESV state at router R3 has timed out. Which of the following actions will router R3 initiate?

A.

Send a PathTear message towards router R6.

B.

Send a PathTear message towards router R1.

C.

Send a ResvTear message toward router R6.

D.

Send a ResvTear message toward router R1.

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

A.

Label request message

B.

Notification message

C.

Address message

D.

Keepalive message

E.

Initialization message

F.

Hello message

What is the goal of MPLS Traffic Engineering?

A.

To establish additional LSPs across the network

B.

To allow ECMP to occur across an MPLS network

C.

To enable the implementation of services

D.

To utilize paths other than the lowest cost path

Click on the exhibit.

Router R2 advertises an OSPF summary route 10.10.10.0/24 into Area 1. Router R3 receives labels for individual FECs 10.10.10.2/32 and 10.10.10.4/32. These two FECs are installed in router R3's LIB but not in the LFIB. What needs to be done on router R3 to install these labels into its LFIB?

A.

Disable route summarization on router R3.

B.

Enable LDP aggregate prefix match.

C.

Create an import policy to accept 10.10.10.2/32 and 10.10.10.4/32.

D.

Disable LDP exact match on 10.10.10.2/32 and 10.10.10.4/32.

Click on the exhibit button below.

Given the configuration below, which of the following commands would enable fast reroute on the LSP? Choose two answers

A.

This configuration already is configured for FRR.

B.

fast-reroute facility

C.

fast-reroute one-to-one

D.

secondary

E.

standby

Click on the exhibit button below.

Consider the output shown; what table is displayed?

A.

RIB

B.

FIB

C.

LIB

D.

LFIB

Which of the following about RSVP-TE on an Alcatel-Lucent 7750 SR is TRUE?

A.

Label bindings are distributed to other routers when explicitly requested.

B.

Label bindings are distributed to all neighbors including non-downstream routers.

C.

Label bindings are distributed if labels have not been received from downstream routers.

D.

All labels received from downstream neighbors are stored in the LIB.

Which of the following regarding MPLS Encapsulation is FALSE?

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.

Which of the following statements are true? Choose two answers

A.

Selected labels from the FIB are populated to the LIB.

B.

Selected labels from the LIB are populated to the LFIB.

C.

Selected routes from the RIB are populated to the FIB.

D.

Selected routes from the FIB are populated to the RIB.

E.

All labels from the LIB are populated to the LFIB.

Which of the following are the default settings for the Alcatel-Lucent 7750 SR when using LDP?

A.

Per-platform label space, conservative retention mode

B.

Per-interface label space, conservative retention mode

C.

Per-platform label space, liberal retention mode

D.

Per-interface label space, liberal retention mode

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?

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.

Which of the following statements 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.

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