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Exam 400-007 topic 1 question 41 discussion

Actual exam question from Cisco's 400-007
Question #: 41
Topic #: 1
[All 400-007 Questions]

DRAG DROP -
Drag and drop the multicast protocols from the left onto the correct design situations on the right.
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Suggested Answer:
by japer78 at Nov. 20, 2022, 8:53 p.m.

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walkwolf3
Highly Voted 1 year ago
PIM-SM supports IPv4 and v6 while PIM-DM only supports IPv4. The correct order is: PIM-SM, SSM BIDIR -> IPv6 Forwarding PIM-DM, PIM-SM, SSM, BIDR -> IPv4 Forwarding IGMP -> IPv4 Group Management MSDP(Multicast Source Discovery Protocol) -> IPv4 Interdomain Source Discovery MLD(Multicast Listener Discovery) -> IPv6 Group Management
upvoted 9 times
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blurain
Most Recent 9 months, 4 weeks ago
in the CCDE official cert guide, chapter 13, multicast routing protocols, there is a comparison table: PIM-DM: IPv4 PIM-SM: IPv4/6 PIM-SSM: IPv4/6 PIM-BIDIR: IPv4/6
upvoted 2 times
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bdp123
1 year, 6 months ago
Just noticed the 1st link was HP not Cisco - therefore PIM-DM only for IPv4
upvoted 2 times
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bdp123
1 year, 6 months ago
Bad question as both IPv4 and IPv6 support PIM-DM... https://techhub.hpe.com/eginfolib/networking/docs/switches/5820x-5800/5998-7383r_ip-multi_cg/content/441757461.htm#:~:text=IPv6%20PIM-DM%20is%20a%20type%20of%20dense%20mode,small-sized%20networks%20with%20densely%20distributed%20IPv6%20multicast%20members. https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/ipmulti_pim/configuration/xe-16/imc-pim-xe-16-book/imc-tech-oview.html
upvoted 1 times
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biddid
1 year, 8 months ago
No IPv6 PIM-DM mentioned https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/ipmulti_pim/configuration/xe-16/imc-pim-xe-16-book/ip6-mcast-pim-sm.html
upvoted 1 times
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japer78
2 years ago
why would PIM-DM belong to IPv6 and not to IPv4? Makes no sense to me
upvoted 4 times
ying162
1 year, 11 months ago
they got that reversed
upvoted 6 times
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