Implementing Cisco Enterprise Wireless Networks (ENWLSI) — Question 74

Which configuration is applied to prevent the network from a Layer 2 flooding of multicast frames with a seamless transfer of multicast data to the client when roaming from one controller to another?

Answer options

• A. Enable IGMPv3 on the central Layer 3 switch.
• B. Enable IGMP snooping on the WLC.
• C. Enable multicast mode on the WLC.
• D. Create multicast groups on the central Layer 3 switch.

Correct answer: B

Explanation

The correct answer is B because enabling IGMP snooping on the Wireless LAN Controller (WLC) allows it to monitor IGMP traffic and manage multicast group memberships effectively, preventing flooding. The other options, although related to multicast management, do not specifically address the issue of multicast frame flooding in the context of client roaming between controllers.