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Exam 300-620 topic 1 question 178 discussion

Actual exam question from Cisco's 300-620
Question #: 178
Topic #: 1
[All 300-620 Questions]

How is broadcast forwarded in Cisco ACI Multi-Pod after ARP flooding is enabled?

  • A. Ingress replication is used on the spines to forward broadcast frames in the IPN infrastructure.
  • B. Within a pod, the ingress leaf switch floods the broadcast frame on all fabric ports.
  • C. Broadcast frames are forwarded inside the pod and across the IPN using the multicast address that is associated to the bridge domain.
  • D. For the specific bridge domain, all spines forward the broadcast frames to IPN routers.
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Suggested Answer: C 🗳️
by frzzt at March 10, 2023, 3:12 p.m.

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7korn7
7 months ago
Selected Answer: C
Within ACI, all Bridge Domains are allocated a multicast address known as a Group IP Outer (or GIPo) address. All traffic that must be flooded within a Bridge Domain is flooded on this GIPo. https://www.cisco.com/c/en/us/support/docs/cloud-systems-management/application-policy-infrastructure-controller-apic/218013-troubleshoot-aci-intra-fabric-forwarding.html#anc23
upvoted 3 times
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frzzt
8 months, 1 week ago
Wrong, one spine is assigned to each BD. Answers are hard, but i would go for C.
upvoted 2 times
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