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Exam JN0-251 All Questions

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Exam JN0-251 topic 1 question 29 discussion

Actual exam question from Juniper's JN0-251
Question #: 29
Topic #: 1
[All JN0-251 Questions]

Mist has detected a bad cable.
What are two ways that Marvis determined this result? (Choose two.)

  • A. It identified network loops.
  • B. It identified port flapping.
  • C. It identified interface errors.
  • D. It identified a missing VLAN.
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Suggested Answer: BC 🗳️

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maartjeclaartje
Highly Voted 1 year, 8 months ago
I would say, B&C because those are Layer 1 issues, the other ones are layer 2 issues
upvoted 8 times
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redgi0
Most Recent 1 year, 2 months ago
Selected Answer: BC
A. It identified network loops. > NO, we can all agree that network loop isn't a good situation but it is not caused by a bad cable B. It identified port flapping. > Yes, if the port is flapping, that could be the result of a bad cable C. It identified interface errors. > YES, when you have a bad cable you have CRC errors and stuff like that D. It identified a missing VLAN. > NO ! how could a bad cable cause missing VLAN ??
upvoted 4 times
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kujup
1 year, 2 months ago
Selected Answer: BC
Hard one, but I would also say B and C. A loop occurs when multiple links exist between devices, so that's not a bad cable. Missing VLAN is not bad cable, it's misconfigured. https://blogs.juniper.net/en-us/enterprise-cloud-and-transformation/juniper-mist-ai-powered-troubleshooting-for-wired-networks
upvoted 3 times
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Varshadas
1 year, 5 months ago
Selected Answer: BD
I think B & D
upvoted 1 times
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