The difference between the PIM-SM protocol and the PIM-DM protocol is: (Multiple Choice)
A . PIM-SM assumes that there are a small number of recipients in the network, while PIM-DM assumes that there are a large number of recipients in the network.
B . The BSR/RP exists only in the PIM-SM network, but not in the PIM-D
D . PIM-SM can implement on-demand forwarding. There is no redundant traffic in the network, and PIM-DM periodically floods, and there is no redundant traffic in the network.
E . PIM-SM has RPT and SPT trees, while PIM-DM only has SPT trees.
Answer: ABD