Which three IP multicast group c
题目
Which three IP multicast group concepts are true?（）
- A、If a packet is sent to a multicast group address, the multicast frame contains the source multicast address.
- B、A router does not have to be a member of a multicast group to recei ve multicast data.
- C、A router must be a member of a multicast group to send to the group.
- D、A router does not have to be a member of a multicast group to send to the group.
- E、If a packet is sent to a multicast group address, all members of the multic ast group will receive it.
- F、A router must be a member of a multicast group to receive multicast data.
