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Exam 300-610 topic 1 question 3 discussion

Actual exam question from Cisco's 300-610
Question #: 3
Topic #: 1
[All 300-610 Questions]

Which multicast rendezvous point redundancy mode is valid for Bidirectional PIM?

  • A. Embedded RP
  • B. Phantom RP
  • C. MSDP
  • D. PIM anycast RP
Show Suggested Answer Hide Answer
Suggested Answer: D 🗳️
Reference:
https://www.cisco.com/c/en/us/products/collateral/ios-nx-os-software/ip-multicast/whitepaper_c11-508498.html
by CHEdot at Aug. 25, 2020, 12:18 p.m.

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CHEdot
Highly Voted 4 years, 8 months ago
Answer must be B. Check the Phantom RP section in: https://www.cisco.com/c/en/us/products/collateral/ios-nx-os-software/ip-multicast/whitepaper_c11-508498.html
upvoted 9 times
Mr_Cipher
4 years, 6 months ago
I reckon Anycast-RP is the correct answer, refer back to your doc, you'll see the Anycast-RP provides RP failover and redundancy.
upvoted 1 times
FomaLermont85
4 years, 5 months ago
See page 8 in https://www.cisco.com/c/dam/en/us/products/collateral/ios-nx-os-software/multicast-enterprise/prod_white_paper0900aecd80310db2.pdf. It says "Because multicast source information is no longer available in Bidir, the Anycast/MSDP mechanism used to provide redundancy in sparse-mode is not an option for Bidir". So, correct answer should be B, IMHO
upvoted 7 times
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FonT
Highly Voted 4 years ago
should be B : https://community.cisco.com/t5/networking-documents/rp-redundancy-with-pim-bidir-phantom-rp/ta-p/3117191
upvoted 5 times
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Wasamela
Most Recent 10 months, 1 week ago
Selected Answer: B
Agree with CHEdot the correct answer is B as the Phantom RP provides dynamic failover in case the primary RP becomes unavailable.
upvoted 1 times
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DGriff
10 months, 3 weeks ago
A few hints: MSDP is IPV4 only and used to blamance PIM registrations PIM anaycast RP substitute and extents the role of MSDP to RPs sets and supports IPv6 Phantom RP is specifically for PIM-BiDir, the nature of this model is birectional flowing between source/recievers, and Phantom RPs are just transit points along the flow path (no registration role)
upvoted 1 times
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mojzucha
3 years, 6 months ago
It is Phantom RP of course
upvoted 1 times
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