The network design team has decided to activate multicast in the network. Auto-RP has been selected as the RP mechanism. Which PIM operational mode must be enabled in this network?
A.
sparse mode
B.
sparse-dense mode
C.
dense mode
D.
source specific multicast
Ans:- B
http://www.cisco.com/c/en/us/td/docs/ios/solutions_docs/ip_multicast/White_papers/rps.html