A multicast source begins sending traffic, and the first-hop router has no receivers on its directly connected segments. The first-hop router is configured for PIM sparse mode and has an RP. What does the first-hop router do with the multicast traffic?

It sends a prune message to the RP to stop the flow.

It drops the traffic because there are no local receivers.

It floods the traffic on all PIM-enabled interfaces except the incoming one.

It encapsulates the traffic in register messages and sends it to the RP.

A network engineer is comparing PIM BSR and Auto-RP for a multicast deployment. They want to choose the mechanism that provides the most control over which RP is used for a specific group. Which statement correctly describes a difference between BSR and Auto-RP in this context?

BSR uses a flooding mechanism to distribute RP information, while Auto-RP uses a unicast mechanism.

Auto-RP uses a well-known multicast group for announcements, while BSR uses a flooding mechanism.

Auto-RP allows the RP to be selected based on group range, while BSR does not.

BSR allows the RP to be selected based on group range, while Auto-RP does not.

In PIM Sparse Mode, what is the primary purpose of the Rendezvous Point (RP)?

To elect the designated router on each multi-access segment.

To store the multicast forwarding table for all groups.

To act as the root of the shared tree and receive register-encapsulated traffic from first-hop routers.

To flood all multicast traffic to every router in the network.

What problem does the PIM Assert mechanism solve?

It quickly re-joins a pruned branch.

It prevents loops in a multi-access network where multiple routers are forwarding the same multicast stream.

It elects the designated router for each multi-access segment.

It discovers the RP for a multicast group.

How is the Bootstrap Router (BSR) elected in a PIM domain?

The RP with the most groups becomes the BSR.

Routers send BSR messages and the one with the highest priority (and then highest IP) wins.

The first router to send a hello message becomes the BSR.

The router with the highest IP address becomes the BSR.

Juniper NetworksCertified Professional, Service Provider Routing and Switching (JNCIP-SP)

Domain 5Objective 5

PIM Modes JN0-664 Practice Questions (Page 1)

Part of the IP Multicast domain, which makes up ~18% of our current practice bank. Juniper Networks does not publish an official question count, but from its 90-minute exam (~35–60 total, ~6–11 in this domain), expect 1–1 from this objective — we provide 26 practice questions to prepare you well beyond it. (estimate)

26questions here

6free pages

12concepts

Questions 1–5

1application · medium
A multicast source begins sending traffic, and the first-hop router has no receivers on its directly connected segments. The first-hop router is configured for PIM sparse mode and has an RP. What does the first-hop router do with the multicast traffic?
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2expert · medium
A network engineer is comparing PIM BSR and Auto-RP for a multicast deployment. They want to choose the mechanism that provides the most control over which RP is used for a specific group. Which statement correctly describes a difference between BSR and Auto-RP in this context?
Select an answer first
3foundation · easy
In PIM Sparse Mode, what is the primary purpose of the Rendezvous Point (RP)?
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4foundation · easy
What problem does the PIM Assert mechanism solve?
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5foundation · easy
How is the Bootstrap Router (BSR) elected in a PIM domain?
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