Implementing Cisco ACI Advanced (DCACIA) — Question 61

Which device replicates Broadcast, Unicast, and Multicast (BUM) frames to all remote sites in a Cisco ACI Multi-Site with multiple stretched bridge domains?

Answer options

• A. remote spine node that translates the VNID to the locally significant value
• B. receiving leaf that learns the location for the sourced BUM traffic
• C. source leaf that floods the traffic to the specific multicast group or GIPo
• D. local spine that is elected the designated forwarder for each bridge domain

Correct answer: A

Explanation

The correct answer is A because the remote spine node is specifically tasked with translating the Virtual Network Identifier (VNID) to a value that is significant locally, thereby enabling the replication of BUM frames across sites. Options B and C are incorrect as they refer to functions related to traffic handling within local contexts rather than replicating traffic across remote sites. Option D is also incorrect because the local spine's role is about forwarding within its own domain rather than handling remote site communications.