ALCATEL LUCENT - Multicast Protocols

1.

Which of the following is NOT required when configuring an MVPN with mLDP as its S-PMSI?

The MVPN must be configured with auto-discovery default. The I-PMSI must also use mLDP. A range of multicast group addresses must be specified for the S-PMSI tunnels. A data threshold must be specified for instantiating the S-PMSI.

2.

Which of the following actions is not performed by a bud node along a RSVP-TE P2MP LSP?

Label push operation Label swap operation Packet replication Label pop operation

3.

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

MP_REACH_NLRI MP_UNREACH_NLRI MCAST-VPN NLRI PMSINLRI

4.

Which of the following describes how customer multicast routing information is distributed in NG MVPN?

Customer multicast routing information is distributed only with PIM. Customer multicast routing information is distributed only with MP-BGP. Customer multicast routing information is distributed with either PIM or MP-BGP. Customer multicast routing information is distributed with either mLDP or RSVP-TE.

5.

The customer multicast network is running PIM SSM. The MVPN is using BGP A-D to distribute C- multicast routes. Which BGP route does a PE send to the core when it receives a PIM (S,G) Join from its CE?

S-PMSI A-D route Source Active A-D route Shared Tree Join A-D route Source Tree Join A-D route

6.

Which of the following is NOT an advantage of using P2MP LSP as P-tunnels that instantiate PMSIs?

P-tunnels can be protected with fast reroute for better resiliency. PIM is no longer required in the provider core. P2MP LSP tunnels forward multicast traffic only to the PEs with interested receivers. Traffic engineering of the P-tunnels is possible with P2MP LSPs.

7.

In an MVPN that uses BGP Auto Discovery for both I-PMSI and S-PMSI, what action is taken by the ingress when customer multicast traffic drops below the threshold?

The ingress PE sends a MP_REACH_NLRI message to activate the Intra-AS I-PMSI A-D route. The ingress PE sends a MPJJNREACH_NLRI message to withdraw the S-PMSI A-D route. The ingress PE stops sending the S-PMSI A-D route. The ingress PE stops sending the Source Active A-D route.

8.

Which of the following about the signaling of multicast group information in an MVPN service is TRUE when MPLS P2MP tunnels are used?

BGP Auto-Discovery is used for the signaling of the PMSIs, while either mLDP or RSVP-TE P2MP is used for the signaling of customer multicast group membership. Either BGP Auto-Discovery or PIM is used for the signaling of the PMSIs, while either mLDP or RSVP-TE P2MP is used for the signaling of customer multicast group membership. BGP Auto-Discovery is used for the signaling of the PMSIs, as well as for the signaling of customermulticast group membership. BGP Auto-Discovery is used for the signaling of the PMSIs, while either BGP Auto-Discovery or PIM isused for the signaling of customer multicast group membership.

9.

Which of the following is NOT a characteristic of multicast?

Multicast relies on an existing IP routing infrastructure. Multicast traffic may follow a different path than unicast traffic between the same two points. A distinct multicast topology can be created instead of using the unicast topology. When PIM is used, the unicast routing topology has no impact on the multicast topology.

10.

Which entity periodically sends IGMP Host Membership Queries?

The router elected as Querier on a LAN. The first host to expire its local suppression timer. Only the multicast-enabled hosts on a LAN. All routers on a LAN.

ALCATEL LUCENT - Multicast Protocols

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ALCATEL LUCENT - Multicast Protocols

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