Free Cisco 300-415 Actual Exam Questions - Question 12 Discussion

B vs C, I’d pick B since IGMP v1/v2 are more widely supported.

B/D? The vSmart controller usually pushes routes, so options where WAN Edge routers originate routes (A and D) seem less likely. Between B and C, the IGMP version difference stands out. Since IGMP v3 support might not be standard everywhere, B’s mention of v1 or v2 feels safer for a general question. So I’m picking B mainly because it fits the common flow and IGMP versions better than the other options.

Maybe B makes sense because the vSmart controller usually distributes routes in SD-WAN, not the WAN Edge routers. Plus, IGMP version details in B seem to fit common implementations better.

It’s B because the vSmart controller is the one distributing multicast service routes to WAN Edge routers via OMP, which then handle joins based on IGMP. The direction of route origination is key here.

It’s D because multicast routing usually involves the WAN Edge routers starting the service routes, and IGMP v2 or v3 support is more current in Cisco SD-WAN. The vSmart then forwards the joins accordingly.

A. The edge devices usually start the multicast service routes, not the controller, so A makes sense since it mentions WAN Edge routers originating routes via OMP. Also, IGMP v1 or v2 fits older Cisco setups better than v3.

B imo