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Exam 300-620 topic 1 question 184 discussion

Actual exam question from Cisco's 300-620
Question #: 184
Topic #: 1
[All 300-620 Questions]

The engineer notices frequent MAC and IP address moves between different leaf switch ports. Which action prevents this problem from occurring?

  • A. Disable enforce subnet check.
  • B. Enable endpoint loop protection.
  • C. Enable rogue endpoint control.
  • D. Disable IP bridge domain enforcement.
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Suggested Answer: C 🗳️

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andante
8 months, 2 weeks ago
Selected Answer: C
Now that Rogue EP Control is available after APIC Release 3.2, Rogue EP Control instead of Ep Loop Protection is recommended. https://www.cisco.com/c/en/us/solutions/collateral/data-center-virtualization/application-centric-infrastructure/white-paper-c11-739989.html#EpLoopProtection
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Narbledeath
1 year, 1 month ago
I meant C!
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Narbledeath
1 year, 1 month ago
Correct Answer: B. While Ep Loop Protection has similar intentions (that is, finding a loop and disabling learning) to Rogue EP Control, it disables learning on the bridge domain and/or disables the port (error-disable), which could affect healthy endpoints connected to the same interface or the same bridge domain. Thus, use of Rogue EP Control instead of Ep Loop Protection is recommended after APIC Release 3.2. Please be aware that the detection mechanism of Ep Loop Protection is strictly for a loop, because it triggers the move only when the move is between the same two interfaces. Ep Loop Protection cannot detect movements for an endpoint that moves around randomly. https://www.cisco.com/c/en/us/solutions/collateral/data-center-virtualization/application-centric-infrastructure/white-paper-c11-739989.html#EpLoopProtection
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