Free 4A0-108 Questions for Alcatel-Lucent Multicast Protocols 4A0-108 Exam as PDF & Practice Test Engine

Exam Code/Number: 4A0-108
Exam Name/Title: Alcatel-Lucent Multicast Protocols
Certification Provider: Alcatel-Lucent
Corresponding Certification: Alcatel-Lucent Certifications

Exam Questions: 247
Updated On: Aug 21, 2026

Question #1

Which features are introduced in IGMP version 2? (Choose two)

A. TTL of 1 for IGMP messages

B. Formalized IGMP Querier election

C. Leave group message

D. IGMP snooping

E. Report suppression is eliminated

Discussion 0

Correct Answer: B,C Vote an answer

Question #2

An IGMP version 3 receiver signals EXCLUDE mode report with an empty EXCLUDE list. What does this indicate?

A. The receiver has received the query, but it does not wish to join any group.

B. This is the initial join message; a list of sources to exclude will follow.

C. The receiver is willing to receive traffic from any source.

D. The receiver is leaving the group.

Discussion 0

Correct Answer: C Vote an answer

Question #3

Which of the following best describes the PMSI (provider multicast service interface) in an MVPN service?

A. The PMSI is the PIM-enabled interface between the PEs in an MVPN service.

B. The PMSI is an overlay broadcast network that interconnects all PEs in an MVPN service.

C. The PMSI is the interface between the PEs and CEs in an MVPN service.

D. The PMSI is the GRE tunnel that carries customer multicast traffic across the service provider core network.

Discussion 0

Correct Answer: B Vote an answer

Question #4

Which of the following is NOT a characteristic of Draft Rosen?

A. PIM in the service provider's core network.

B. MPLS encapsulation for multicast data traffic.

C. PIM in the VRF.

D. GRE encapsulation for multicast data traffic.

Discussion 0

Correct Answer: B Vote an answer

Question #5

What is the position of the router shown in the exhibit?

A. The RP

B. One router upstream on the Shared Path Tree from the diverging router

C. The first hop router from the source

D. The last hop router from the source

Discussion 0

Correct Answer: C Vote an answer

Question #6

Refer to the following exhibit.

The interfaces' IGP metric is as shown and PIM is using unicast table for RPF-check. What will happen when Router B receives the register message on its interface facing Router A?

A. Forward the register message to Router D (RP) according to its routing table

B. Discard the register message as RPF-check fails

C. Forward the register message out of all the interfaces in its (192.168.1.1, 239.1.1.1) entry's outgoing interface list

D. Forward the register message out of all the interfaces in its (", 239.1.1.1) entry's outgoing interface list

Discussion 0

Correct Answer: A Vote an answer

Question #7

Which of the following is the BGP NLRI used for BGP Auto-Discovery in a MVPN?

A. MP_UNREACH_NLRI

B. PMSINLRI

C. MP_REACH_NLRI

D. MCAST-VPN NLRI

Discussion 0

Correct Answer: D Vote an answer

Question #8

Which MAC address will the IPv4 multicast address 233.103.42.11 be translated to?

A. 01-00-5e-75-2a-0b

B. 00-01-5e-a1-2a-6b

C. 01-00-5e-67-2a-0b

D. 00-01-5e-76-2b-cc

E. 00-01-5e-67-2a-0b

F. 01-00-5e-66-3a-6b

Discussion 0

Correct Answer: C Vote an answer

Question #9

Which of the following regarding the BSR and the RP is TRUE?

A. A router cannot be a candidate-RP and a BSR-candidate at the same time.

B. There is only one elected BSR in a multicast routing domain at any time.

C. A router cannot be configured as a BSR-candidate and a static RP at the same time.

D. There is only one active RP in a multicast routing domain at any time.

Discussion 0

Correct Answer: B Vote an answer

Question #10

Which of the following about MLD snooping is FALSE?

A. MLD snooping can co-exist with IGMP snooping in the same VPLS service.

B. Once MLD snooping is enabled, the switch can snoop both MLDv1 and MLDv2 messages.

C. MLD snooping snoops MLD report and done messages, but not query messages.

D. MLD snooping enables switches to forward multicast data to specific hosts interested in the group.

Discussion 0

Correct Answer: C Vote an answer

Question #11

An Alcatel-Lucent 7750 SR is unable to locate a multicast source address in the multicast forwarding table. However, the source address is available in the unicast forwarding table.
Which statement best describes the default RPF check behavior of the 7750 SR?

A. Not enough information is provided to answer the question

B. The RPF check will fail as the RPF check requires that the source address be present in both the unicast and multicast forwarding table

C. The RPF check will not fail as PIM uses only the unicast forwarding table by default

D. The RPF check will fail as PIM relies exclusively on the multicast forwarding table by default

E. The RPF check will not fail, as by default PIM uses the multicast forwarding table first for RPF check, if not found in the multicast forwarding table then refers to unicast forwarding table

Discussion 0

Correct Answer: C Vote an answer

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