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Exam 300-620 topic 1 question 211 discussion

Actual exam question from Cisco's 300-620
Question #: 211
Topic #: 1
[All 300-620 Questions]



Refer to the exhibit. An engineer is implementing a BPDU filter on external switch interfaces that face the Cisco ACI fabric to prevent excessive TCNs from impacting the fabric. Which configuration must be applied on Cisco ACI to avoid a Layer 2 loop?

  • A. Configure MCP globally.
  • B. Implement BPDU Guard.
  • C. Apply an MSTP instance on Cisco ACI.
  • D. Enable STP on downlinks.
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Suggested Answer: A 🗳️
by imanus at May 15, 2023, 9:10 a.m.

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MURUMAN
7 months, 2 weeks ago
Selected Answer: A
If BPDU filtering is already implemented on the external device, you might argue that enabling BPDU Guard on the Cisco ACI fabric (option B) would not required, as the external device is already preventing BPDUs from entering the fabric. In that case, ption A will be correct answer in my opinion
upvoted 2 times
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sailorsoul
9 months, 1 week ago
Selected Answer: A
When it come to avoid loop for ACI, MCP needs to be enabled globally and on every interface.
upvoted 1 times
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netwerk
1 year, 5 months ago
Selected Answer: A
https://www.linkedin.com/pulse/cisco-aci-network-behaviour-stptcn-how-identify-loop-ankit-kulshresta
upvoted 3 times
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imanus
1 year, 5 months ago
BPDU guard would put the link in err disable if it would receive a TC, which it would, why not BPDU filter?
upvoted 1 times
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