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Exam JN0-664 topic 1 question 31 discussion

Actual exam question from Juniper's JN0-664
Question #: 31
Topic #: 1
[All JN0-664 Questions]

Click the Exhibit button.

Referring to the exhibit, which two statements are correct regarding the output shown in the exhibit? (Choose two.)

  • A. The multicast group is an ASM group.
  • B. The multicast group is an SSM group.
  • C. The multicast traffic is using the SPT.
  • D. The multicast traffic is using the RPT.
Show Suggested Answer Hide Answer
Suggested Answer: AC 🗳️
by StargateCommand at Jan. 25, 2024, 8:38 p.m.

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solen003
Highly Voted 1 year, 4 months ago
It is a trap. The first entry is the key, STAR, G entry. It is ASM despite using 232/8. A, C
upvoted 8 times
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Kondogbia3
Most Recent 3 weeks, 4 days ago
Selected Answer: AC
Any-source multicast (ASM) • Supports one-to-many and many-to-many applications Source-specific multicast (SSM) • Supports only one-to-many applications In this case we have both, means that A is correct. If you don't know the source you start with RPT creation starting from the listener to the RP. When you know the source you can change RPT with SPT. Uptime is an indicator. So C is correct
upvoted 1 times
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Jentti
2 months, 3 weeks ago
Selected Answer: AC
You can configure Junos OS to accept any-source multicast (ASM) join messages (*,G) for group addresses that are within the default or configured range of source-specific multicast (SSM) groups. This allows you to support a mix of any-source and source-specific multicast groups simultaneously. So it's really a trap, using SSM reserved range for ASM traffic.
upvoted 1 times
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udfiore
4 months, 1 week ago
Selected Answer: AC
The (*,G) entry indicates that is ASM. Also the Join sent to Source and Prune sent to RP means that traffic is flowing through the SPT
upvoted 1 times
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crramos
9 months, 1 week ago
Selected Answer: AC
A and C correct
upvoted 1 times
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Tony87
11 months, 4 weeks ago
A and C are correct, if it's SSM then output should not have "Prune to RP".
upvoted 3 times
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easynet13
1 year, 3 months ago
Selected Answer: AC
There is a (*,G) entry. That's only for ASM groups.
upvoted 4 times
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StargateCommand
1 year, 5 months ago
Selected Answer: BC
B and C!
upvoted 2 times
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StargateCommand
1 year, 5 months ago
Should be "C" and "B" The group address is from SSM address block range (232.0.0.0 through 232.255.255.255)
upvoted 4 times
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Community vote distribution
A (35%)
C (25%)
B (20%)
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