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Exam 350-401 topic 1 question 554 discussion

Actual exam question from Cisco's 350-401
Question #: 554
Topic #: 1
[All 350-401 Questions]

How does Protocol Independent Multicast function?

  • A. In sparse mode, it establishes neighbor adjacencies and sends hello messages at 5-second intervals.
  • B. It uses the multicast routing table to perform the multicast forwarding function.
  • C. It uses unicast routing information to perform the multicast forwarding function.
  • D. It uses broadcast routing information to perform the multicast forwarding function.
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Suggested Answer: C 🗳️
by iEpsilon at Oct. 5, 2022, 6:01 a.m.

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rafaelinho88
Highly Voted 1 year, 9 months ago
Selected Answer: C
Although PIM is called a multicast routing protocol, it actually uses the unicast routing table to perform the reverse path forwarding (RPF) check function instead of building up a completely independent multicast routing table. Unlike other routing protocols, PIM does not send and receive routing updates between routers
upvoted 8 times
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[Removed]
Most Recent 5 months ago
Selected Answer: C
C is correct
upvoted 1 times
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[Removed]
5 months, 1 week ago
C is correct
upvoted 1 times
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HarwinderSekhon
1 year, 4 months ago
If you know RPF failure topic, then you know it uses Unicast.
upvoted 2 times
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bendarkel
1 year, 11 months ago
Selected Answer: C
Given answer is correct. PIM relies on IGP for forward.
upvoted 3 times
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C (25%)
B (20%)
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