Which statement is correct?

Refer to exhibit.

The dynamic interfaces shown above are bound to an interface group for a specific WLAN profile in the Cisco Wireless LAN Controller. You notice duplicated multicast streams on the wireless medium for the given WLAN profile.

Which statement is correct?
A . The controller always uses Layer 3 multicast group ID for all Layer 3 multicast traffic sent to the access point. Internet Group Management Protocol snooping should be disabled to avoid duplicate streams.
B . The controller creates different multicast group IDs for each multicast address and VLAN, and as a result, the upstream router sends one copy for each VLA
C . Enable Multicast VLAN to avoid duplicate streams.
D . Global multicast mode and Internet Group Management Protocol snooping have not been enabled. To avoid duplicate streams, enable both.
E . Global multicast mode, global IPv6 config, and multicast listener discovery snooping have not been enabled. Enable these to avoid duplicate streams.

View Answer

Answer: A