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Exam 350-501 topic 1 question 157 discussion

Actual exam question from Cisco's 350-501
Question #: 157
Topic #: 1
[All 350-501 Questions]

DRAG DROP -
Drag and drop the multicast concepts from the left onto the correct descriptions on the right.
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Suggested Answer:
by blizzlondon at July 2, 2020, 10:03 p.m.

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costascarramanlis
Highly Voted 3 years ago
The correct order: DM IGMP SM shared source
upvoted 25 times
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blizzlondon
Highly Voted 3 years, 5 months ago
I suggest: “Technology that requires an RP” – “PIM-SM” “technology that uses the RP as the single common root” – “shared tree” Def. from cisco book: “Shared tree: A shared tree is a single tree that is shared between all sources for each multicast group. The shared tree has a single common root, called a Rendezvous Point (RP)”. Def. from Wikipedia: “PIM Sparse Mode (PIM-SM) explicitly builds unidirectional shared trees rooted at a rendezvous point (RP) per group”
upvoted 8 times
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DUsoo
Most Recent 10 months, 1 week ago
DM IGMP SM SHARED SOURCE
upvoted 3 times
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ubuntu1234
1 year, 12 months ago
in case of PIM SSM (source Specific Multicast) although we enable PIM SM Sparse Mode , but we do not use RP as the common root. so "Technology that requires an RP "is not always PIM-SM, but "technology that uses the RP as the single common root " is PIM-SM and the "technology that requires RP" is "shared tree".
upvoted 1 times
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rans3001
2 years, 4 months ago
https://packetlife.net/blog/2008/oct/20/pim-sm-source-versus-shared-trees/ correct is to swap 3 with 4
upvoted 1 times
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ciccioriccio
3 years, 4 months ago
yep I agree with both of you: 1-2 2-1 3-3 4-4 5-5
upvoted 1 times
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Onny
3 years, 5 months ago
i'm go with blizzlondon An RP is required only in networks running PIM SM
upvoted 2 times
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