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
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