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Exam 300-620 topic 1 question 261 discussion

Actual exam question from Cisco's 300-620
Question #: 261
Topic #: 1
[All 300-620 Questions]

When Layer 3 routed traffic is destined to a Cisco ACI fabric, which mechanism does ACI use to detect silent hosts?

  • A. gratuitous ARP
  • B. ARP gleaning
  • C. proxy ARP
  • D. inverse ARP
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Suggested Answer: B 🗳️
by ed27 at Feb. 18, 2024, 6:19 p.m.

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prospio971
2 months, 4 weeks ago
Selected Answer: B
In Cisco ACI, ARP gleaning is the mechanism used to detect silent hosts when Layer 3 routed traffic is destined for the fabric. A silent host is an endpoint that has not yet sent any traffic, so its IP-to-MAC mapping is unknown to the ACI fabric (i.e., it is not in the COOP database).
upvoted 1 times
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mdriraa
9 months ago
Selected Answer: B
https://www.cisco.com/c/en/us/solutions/collateral/data-center-virtualization/application-centric-infrastructure/white-paper-c11-739989.html
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ed27
1 year, 2 months ago
Selected Answer: B
ARP Gleaning, also known as Silent Host Detection, is a process where ACI Spines generate an ARP request for a destination IP address that does not exist in the COOP (Cluster of On-Premises) database
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