Designing Cisco Data Center Infrastructure (DCID, legacy) — Question 63

Layer 2 forwarding of multicast traffic with vPC is based on which modified protocol?

Answer options

• A. CGMP
• B. PIM SS
• C. Auto-RP
• D. IGMP snooping
• E. Destination-based trees

Correct answer: D

Explanation

The correct answer is D, IGMP snooping, as it allows switches to listen to IGMP messages between hosts and routers, optimizing multicast traffic handling in a vPC environment. The other options, while related to multicast protocols, do not specifically address Layer 2 forwarding for multicast traffic in a vPC setup.