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多选题
Which of the following statements concerning IGMP are correct?(Choose all that apply.)()
A

With IGMPvl, queries are sent to a specific group

B

Hosts issuing IGMPvl requests will be correctly interpreted by IGMPv2 hosts due to backwardcompatibility

C

An IGMPv2 router will ignore IGMPv2 leave messages when IGMFVl hosts are present

D

With IGMFV2, a leave message is supported

E

An IGMPv2 host will send an IGMFVl report on an IGMFVl router

F

An IGMPv2 router can only allow IGMPv2 hosts to execute a join request


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