What role do multicast routers play in a multicast network?

They forward multicast traffic and maintain group membership state.

They only forward unicast traffic and ignore multicast.

They send join requests to the source on behalf of receivers.

They generate the multicast data and send it to the group.

In IP multicast, what is the primary purpose of a distribution tree?

To assign unique IP addresses to each receiver

To establish a point-to-point connection between the source and each receiver

To provide a loop-free path from the source to all receivers

To allow receivers to send data back to the source

What happens to a multicast packet that fails the Reverse Path Forwarding (RPF) check on a router?

It is forwarded only to the Rendezvous Point.

It is forwarded out all interfaces except the one it arrived on.

A network administrator is configuring multicast for a video conferencing application. The application uses a single known server as the source for each conference. The administrator wants to simplify receiver configuration and avoid the need for an RP. Which multicast model should they use?

Multicast Source Discovery Protocol (MSDP)

Source-Specific Multicast (SSM)

Juniper NetworksCertified Professional, Enterprise Routing and Switching (JNCIP-ENT)

Domain 3Objective 1

Multicast Fundamentals JN0-650 Practice Questions (Page 1)

Part of the IP Multicast domain, which makes up ~8% of our current practice bank. Juniper Networks does not publish an official question count, but from its 90-minute exam (~35–60 total, ~3–5 in this domain), expect 1–2 from this objective — we provide 24 practice questions to prepare you well beyond it. (estimate)

24questions here

5free pages

5concepts

Questions 1–5

1foundation · easy
What role do multicast routers play in a multicast network?
Select an answer first
2foundation · easy
In IP multicast, what is the primary purpose of a distribution tree?
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3foundation · easy
What happens to a multicast packet that fails the Reverse Path Forwarding (RPF) check on a router?
Select an answer first
4application · medium
A network administrator is choosing between ASM and SSM for a new multicast deployment. The application is a one-to-many video stream from a single known source. The administrator wants to minimize network overhead and simplify configuration. Which model should they choose?
Select an answer first
5application · medium
A network administrator is configuring multicast for a video conferencing application. The application uses a single known server as the source for each conference. The administrator wants to simplify receiver configuration and avoid the need for an RP. Which multicast model should they use?
Select an answer first

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