Refer to the exhibit.

IRF 1, at the campus core campus core, enables Internet Group Management Protocol (IGMP) on
its VLAN3 interface. IRF 1 is also part of a multicast routing solution with the data center
infrastructure devices. How can a network administrator ensure that only endpoints that have
registered for multicasts destined to 239.1.1.1 receive these multicasts?

A.
On every campus IRF virtual switch, set VLAN 3 as the multicast VLAN

B.
On IRF 1, enable IGMP snooping on VLAN3

C.
On each access layer IRF virtual switch, enable IGMP snooping on VLAN 3

D.
On each access layer IRF virtual switch, create a Layer 3 interface VLAN3. Enable IGMP on
that interface

Explanation:

http://www.h3c.com/portal/Technical_Support___Documents/Technical_Documents/Switches/H3C
_S12500_Series_Switches/Configuration/Operation_Manual/H3C_S12500_CG-Release7128-
6W710/07/201301/772657_1285_0.htm