When using PIM-SM in SSM mode, which event triggers the creation of a shortest-path tree?
A.
Multicast traffic received at the receiver’s designated router (DR).
B.
An IGMPv3 report received at the receiver’s designated router (DR).
C.
Multicast traffic received at the rendezvous point (RP).
D.
An IGMPv3 report received at the source’s designated router (DR).
Explanation:
The receiver’s DR, learns the multicast sources’ IP address from the receiver’s IGMPv3 report, will use PIM-SM to join the SPT.