CCDE Practical Exam — Question 2

Which approach does Cisco ACI use to achieve multidestination packet forwarding between leaf switches in the same fabric?

Answer options

• A. Map VXLAN VTEP to the multicast group
• B. Map VXLAN to PIM-SM protocol
• C. Map VXLAN VNI to the multicast group
• D. Map VXLAN to PIM-DM protocol

Correct answer: C

Explanation

The correct answer is C because Cisco ACI utilizes VXLAN VNI mapping to multicast groups to facilitate efficient multidestination packet forwarding. Options A and B are incorrect as they refer to VTEP and PIM-SM, which do not directly relate to the specific mechanism used for this purpose. Option D is also incorrect because PIM-DM does not apply in the context of this specific forwarding approach within ACI.