What is the function of the ip pim sparse- dense- mode command?
A.
Allows the router to perform RPF checks
B.
Enables PIM- SM if an RP is detected, if no RP is detected, PIM- DM is used
C.
Enables bidirectional multicast routing
D.
Enables PIM- DM if an RP is detected, if no RP is detected, PIM- SM is used