A multicast network uses SSM. A receiver wants to join a specific channel from a known source. What information does the receiver need to provide in its IGMPv3 membership report?

Both the source and group addresses

The RP address and group address

A multicast router has two paths to the source of a multicast stream: a primary path via ge-0/0/0 and a backup path via ge-0/0/1. The unicast route to the source points to ge-0/0/0. Due to a transient routing change, the multicast stream is received on ge-0/0/1. What is the most likely result?

The router drops the packets because the RPF check fails

The router sends a PIM join toward the source on ge-0/0/1

The router updates its unicast route to point to ge-0/0/1

The router accepts the packets and forwards them normally

A multicast router receives a packet on interface ge-0/0/1 with source address 198.51.100.10 and group address 239.1.1.1. The unicast route to 198.51.100.10 points to ge-0/0/2. What action will the router take after performing the RPF check?

Forward the packet out all interfaces in the outgoing interface list

Forward the packet only out the interface toward the receivers

Send an Internet Group Management Protocol (IGMP) query on ge-0/0/1

In a multicast network using PIM sparse mode, a receiver joins a group. The last-hop router sends a PIM join toward the RP. What type of tree is established?

A source-specific tree rooted at the source

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

Domain 3Objective 1

Multicast Fundamentals JN0-650 Practice Questions (Page 5)

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 21–24

21application · medium
A multicast network uses SSM. A receiver wants to join a specific channel from a known source. What information does the receiver need to provide in its IGMPv3 membership report?
Select an answer first
22expert · hard
A multicast router has two paths to the source of a multicast stream: a primary path via ge-0/0/0 and a backup path via ge-0/0/1. The unicast route to the source points to ge-0/0/0. Due to a transient routing change, the multicast stream is received on ge-0/0/1. What is the most likely result?
Select an answer first
23application · medium
A multicast router receives a packet on interface ge-0/0/1 with source address 198.51.100.10 and group address 239.1.1.1. The unicast route to 198.51.100.10 points to ge-0/0/2. What action will the router take after performing the RPF check?
Select an answer first
24application · medium
In a multicast network using PIM sparse mode, a receiver joins a group. The last-hop router sends a PIM join toward the RP. What type of tree is established?
Select an answer first

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