Free 4A0-108 Exam Dumps Preview

If BGP Auto Discovery is used, MPLS LSPs must be used for the P-tunnels in the MVPN.

MP-BGP keepalive messages are used to maintain adjacencies between the PEs in an MVPN.

MP-BGP can also be used as the multicast signaling protocol between the PEs and CEs.

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The router forwards the packet.

The router floods the packet to all ports except the receiving port.

The router floods the packet to all ports, including the receiving port.

Hello, Join/prune messages use All-PIM-Routers multicast address (FF02 D) as destination

Register message uses RP's global unicast IPv6 address as destination

Register message uses outgoing interface's global unicast IPv6 address as source address

It is unicast to them

It is preconfigured on all routers

It is flooded through the network in the PIM Hello

Version 1

Version 2

There is no default setting, you must configure the version when you enable IGMP on 7750 SR

No

Depends on whether there is an elected BSR. With an elected BSR, RP is not mandatory. Without an elected BSR, RP is mandatory

In IPv4, RP is mandatory for ASM. In IPv6, it is not

This router is a PE attached to the multicast source of group 239.1.1.1.

Router 192.168.1.2 is a PE attached to the multicast source of group 239.1.1.1.

Router 192.168.1.2 is a PE attached to a receiver interested in group 239.1.1.1.

No, it is unnecessary to enable PIM on that interface

If it's a physical interface, that interface should be PIM enabled, otherwise it is unnecessary

If the RPF check is using the multicast routing table, that interface should be PIM enabled, otherwise it is unnecessary

It is sent by the ingress PE when the configured threshold is exceeded.

It eliminates the periodic MDT Join.

It signals the multicast group address for the S-PMSI.

33:33:FF:34:56:78

33:33:FE:34:56:78

33:33:FF:FE:56:78

This P2MP LSP is established for VPRN 100.

Router 1.1.1.1 is a PE participating in VPRN 100.

Router 1.1.1.3 is a PE participating in VPRN 100.

FF02::2

FF02::16

The multicast group address of the multicast data that the router is receiving

00-01-5e

00-01-5f

01-00-5f

The router is the RP.

The router is one router upstream on the Shared Path Tree from the diverging router.

The router is the last hop router from the source.

The PE sends an (S, G) PIM Join with GRE encapsulation.

The PE sends a (*, G) PIM Join with GRE encapsulation.

The PE sends a (*, G) PIM Join with no encapsulation.

FF02::2

FF02::16

The multicast group address which the router assumes its hosts might have interest in.

Forward the multicast packet to Router D (RP) according to its routing table

Forward the multicast packet out of all the interfaces in its (*,239.1.1.1) entry's outgoing interface list

Forward the multicast packet out of all the interfaces in its (192.168.1.1,239.1.1.1) entry's outgoing interface list

Receiver performing IGMP version 3 (S, G) report

Router performing PIM Source Path Tree signaling

Router performing translation to convert a standard IGMP (*, G) Join into a PIM (S, G) Join

RP performing translation to convert a PIM (*, G) Join into a PIM (S, G) Join

BGPA-DandRSVP-TE

mLDPamd PIM

mLDP and BGP A-D

PIM (*, G) Join

IGMP (*, G) Join

PIM Hello

PIM (*, G) RP-bit prune

Every 30 seconds

Every 60 seconds

Every 120 seconds

Every 260 seconds

FF02::1

FF02::2

The specific multicast group address which the host is interested in

It determines if it is the DR for that segment.

It checks the PIM source group database for the matching group.

It sends a PIM Assert message to the RP.

It sends an IGMP join to the source.

A multicast packet destined to FF70:: 1234

A multicast packet destined to FF02:: 1234

A multicast packet destined to FF3A:: 1234

The router propagates a (:,:, 232.1.1.1) join towards RP if it exists.

The router sends a PIM (S, G) join toward both sources: 192.168.1.1 and 192.168.1.2.

The IGMPv3 report is dropped and a misconfiguration message is generated in log 99.

The first 3 bits of the address set to '110'

A value between 223.0.0.0 and 239.255.255.255

The first 4 bits of the address set to '1111'

A subnet mask to indicate the network and host portion of the address

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7750 SR configuration does not permit using the system address for an anycast address

PIM will not be able to establish its signaling sessions if the anycast address uses the system address

None of the above

Leave group message

IGMP snooping

TTL of 1 for IGMP messages

Both Router A and Router B get this IGMP report, and both propagate a PIM join toward the core network.

Only Router A gets this IGMP report and propagates a PIM join toward the core network.

Only Router A gets this IGMP report, but no further action is taken, as Router A is not the PIM DR.

BSR elections followed by DR elections

DR elections followed by PIM Hello messages

DR elections followed by BSR elections

BSR elections followed by PIM Hello messages

PIM Hello messages followed by BSR elections

Its data delivery is more efficient than unicast and broadcast.

It is more scalable than unicast and broadcast.

It suits BTV (Broadcast TV) services very well.

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Receivers are generally known by each other

Well suited for applications in which the receivers provide feedback to each other and the source

All devices are potentially capable of generating multicast data

Well suited for applications such as video on demand where each source sends a separate data stream to each of the many different receivers

Channel 239.1.1.4 can be established, while 239.1.1.8 cannot.

Both of these channels can be established.

Neither of these channels can be established.

MP_REACH_NLRI

MP_UNREACH_NLRI

PMSINLRI

00-01-5e

00-01-5f

01-00-5f