Cisco Exam 300-420 Topic 12 Question 93 Discussion

Actual exam question for Cisco's 300-420 exam

Question #: 93
Topic #: 12

[All 300-420 Questions]

In a multicast network, which condition must be met for an RPF check to be performed on the RP address'?

AThe PIM DM device receives a multicast packet and has no directly connected members

BThe PIM router or multilayer switch has a shared-tree state

CThe PIM router or multilayer switch has a source-tree state

DThe PIM DM device receives a multicast packet and has no directly connected PIM neighbor

Show Suggested Answer

Suggested Answer: B

by Deeanna at Jul 07, 2024, 03:23 AM

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Penney

4 months ago

What is this, a trick question? Of course, it's B! Shared-tree state, baby. The RP address RPF check needs that.

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Filiberto

4 months ago

Hmm, let me think about this... I reckon it's B too. Can't be anything else, right? Shared-tree state all the way!

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Temeka

3 months ago

Yeah, definitely. Shared-tree state is the condition for RPF check on the RP address.

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Eric

4 months ago

I think it's B too. Shared-tree state is the key.

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Harris

4 months ago

Hah, this question is a piece of cake! The right answer is clearly B. You need a shared-tree state for the RPF check on the RP address.

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Romana

4 months ago

Nah, I disagree. I'm pretty sure it's C. The PIM router or multilayer switch needs to have a source-tree state for the RPF check to happen.

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Cassie

4 months ago

C) The PIM router or multilayer switch has a source-tree state

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Glory

4 months ago

B) The PIM router or multilayer switch has a shared-tree state

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Maryann

4 months ago

A) The PIM DM device receives a multicast packet and has no directly connected members

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Kaycee

4 months ago

I think the correct answer is B. The PIM router or multilayer switch must have a shared-tree state for the RPF check to be performed on the RP address.

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Peggy

3 months ago

D) The PIM DM device receives a multicast packet and has no directly connected PIM neighbor

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Jarvis

3 months ago

C) The PIM router or multilayer switch has a source-tree state

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Golda

4 months ago

B) The PIM router or multilayer switch has a shared-tree state

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Virgina

4 months ago

A) The PIM DM device receives a multicast packet and has no directly connected members

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Staci

4 months ago

You might be right, let's review the material again to make sure.

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Aleshia

5 months ago

But doesn't the RPF check require the router to have a source-tree state instead?

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Staci

5 months ago

I disagree, I believe the answer is B) The PIM router or multilayer switch has a shared-tree state.

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Aleshia

5 months ago

I think the answer is A) The PIM DM device receives a multicast packet and has no directly connected members.

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