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Exam JN0-648 topic 1 question 7 discussion

Actual exam question from Juniper's JN0-648
Question #: 7
Topic #: 1
[All JN0-648 Questions]

You have configured CoS on a Junos device. A packet is classified as best effort by a behavior aggregate (BA) classifier, and as expedited forwarding by a multifield (MF) classifier.
Which statement is true in this scenario?

  • A. The packet will be placed in a queue associated with the BA classifier.
  • B. The packet will be placed into the queue which is least congested.
  • C. The packet will be placed into the queue that has the most bandwidth assigned to it.
  • D. The packet will be placed in a queue associated with the MF classifier.
Show Suggested Answer Hide Answer
Suggested Answer: A 🗳️

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fyoumb
Highly Voted 4 years, 7 months ago
Shouldn't the answer be D given the info below? https://www.juniper.net/documentation/en_US/junos/topics/task/configuration/cos-configuring-multifield-classifiers.html >> "If you configure both a behavior aggregate (BA) classifier and a multifield classifier, BA classification is performed first; then multifield classification is performed. If they conflict, any BA classification result is overridden by the multifield classifier."
upvoted 11 times
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wassupkay
Most Recent 2 years, 10 months ago
the BA will always be first, so the answer is A. The only time multifield takes over is when there's a conflict between BA and MF
upvoted 1 times
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Gruizzy
3 years, 2 months ago
Selected Answer: D
D is the good answer, please update
upvoted 1 times
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nushadu
3 years, 5 months ago
https://www.juniper.net/documentation/us/en/software/junos/cos-security-devices/topics/concept/cos-classifier-overview-security.html When both BA and MF classifications are performed on a packet, the MF classification has higher precedence.
upvoted 1 times
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rrahim
4 years, 4 months ago
yep, it is D https://www.juniper.net/documentation/en_US/junos/topics/concept/cos-classifier-overview-security.html When both BA and MF classifications are performed on a packet, the MF classification has higher precedence.
upvoted 4 times
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fyoumb
4 years, 7 months ago
Thx Ted1!
upvoted 1 times
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Ted1
4 years, 7 months ago
Yes, D
upvoted 4 times
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fyoumb
4 years, 7 months ago
Ted1, Thanks for the feedback! The answer is "D" then. Correct?
upvoted 2 times
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Ted1
4 years, 7 months ago
mf overrides BA if there is a conflict
upvoted 4 times
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C (25%)
B (20%)
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