Alcatel-Lucent 4A0-104 Actual Free Exam Questions & Community Discussion

Exam Code/Number: 4A0-104
Exam Name/Title: Alcatel-Lucent Services Architecture
Certification Provider: Alcatel-Lucent
Corresponding Certification: Alcatel-Lucent Certifications

Exam Questions: 288
Updated On: May 28, 2026

Question #25

Which of the following statements about VPRN is NOT true? (Choose 2)

A. VPRN is an IP service that connects multiple sites in a single routed domain over the
provider-managed IP/MPLS network.

B. Each VPRN consists of a set of customer sites that must connect to the same PE router

C. In a VPRN service, each customer router becomes a routing peer to other customer routers

D. VPRN provides customer routers with transparent IP connectivity without knowledge of the MPLS core

Discussion 0

Correct Answer: B,C Vote an answer

Question #26

By default, what does the Alcatel-Lucent 7750 SR do when a frame with an unknown destination address is received in a VPLS?

A. It floods the frame to all PEs participating in the service.

B. It sends the frame to the closest neighbor.

C. It drops the frame.

D. It sends a destination unreachable message back to the originating host.

Discussion 0

Correct Answer: A Vote an answer

Question #27

Which of the following about the Alcatel-Lucent 7750 SR svc-ping, when used in-band, is FALSE?

A. It will test the round-trip connectivity of the service.

B. It will show the hops taken between service endpoints.

C. It will test the delay across the service.

D. It will test the SDPs of a service in both directions.

Discussion 0

Correct Answer: B Vote an answer

Question #28

Which of the following SAPs will NOT forward untagged frames?

A. sap 1/1/1

B. sap 1/1/1:*

C. sap 1/1/1:0

D. sap 1/1/1:1

Discussion 0

Correct Answer: D Vote an answer

Question #29

Which of the following about Hierarchical VPLS is FALSE?

A. They simplify the configuration required when adding new PEs.

B. They allow a service to span multiple metro networks.

C. They use mesh SDPs to connect smaller VPLSes together.

D. They allow a VPLS to scale more easily.

Discussion 0

Correct Answer: C Vote an answer

Question #30

Which of the following best completes the sentence: "An Internet Enhanced Service is a_____________ service where the CE communicates with a ________________interface to send and receive traffic.

A. local/sub

B. Layer 2/loopback

C. routed/Layer 3

D. distributed/virtual

E. distributed/routed

Discussion 0

Correct Answer: C Vote an answer

Question #31

Which of the following SAPs will toward tagged frames but NOT untagged frames?

A. sap 1/1/1

B. sap 1/1/1:*

C. sap 1/1/1:0

D. None of the above.

E. sap 1/1/1:*.0

Discussion 0

Correct Answer: D Vote an answer

Question #32

Choose the following components that are necessary for the configuration of a mirror service. (Choose 2)

A. A mirror source to indicate on which sap or sdp traffic should be replicated

B. A mirror destination to indicate on which sap or sdp traffic should be replicated.

C. A mirror destination to indicate which ports to monitor.

D. A mirror source to indicate which ports to monitor.

Discussion 0

Correct Answer: B,D Vote an answer

Question #33

Click the exhibit.

E-pipe 100 is using an SDP with an LSP that uses the path shown (PE1-PE2-PE3-PE4). Based on the OAM command output, which of the following is FALSE?

A. An svc-ping of the E-pipe will succeed.

B. The E-pipe can support a maximum MTU size of 1578.

C. The ports of the link PE2-PE3 have an MTU of 1578.

D. If the step size was 2, the maximum response size would be the same.

Discussion 0

Correct Answer: B Vote an answer

Question #34

Click the exhibit.

The output is from PE router R4 about VPRN service 100. How many prefixes have been learned from the MP-BGP protocol?

A. 6

B. 2

C. 0

D. 3

Discussion 0

Correct Answer: D Vote an answer

Question #35

What is the minimum Ethernet physical network MTU required for a Layer 2 service on an
MPLS encapsulated SDP with a service MTU of 1518?

A. 1556

B. 1548

C. 1540

D. 1520

Discussion 0

Correct Answer: C Vote an answer

Question #36

A service needs to accept frames that have the following: an outer VLAN tag of 200 with an inner VLAN tag of 33; and frames that have an outer VLAN tag of 250 with an inner VLAN tag of 33. What SAP(s) need to be configured?

A. This requires two SAPs: 1/1/1:200.33 and 1/1/1:250.33

B. 1/1/1:*.*

C. 1/1/1:*.33

D. 1/1/1:200.*

Discussion 0

Correct Answer: A Vote an answer

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