[&] Once a router is receiving multicast traffic down the SPT, which of the following statements are true? - That router will send PIM-Register messages up the SPT every minute - That router will never send another PIM (S,G) Join up the SPT - That router will continue to send PIM (S,G) Joins up the SPT every 30-seconds - That router will continue to send PIM (S,G) Joins up the SPT every minute [&] A router needs to initiate a PIM (S,G) Join in order to join the SPT, but according to its IP Routing Table, there are three, equal-cost paths that lead back to the Multicast Source. In this case, where will the router send its PIM (S,G) Join? - It will create one (S,G) Join destined to the upstream neighbor with the lowest IP address - It will create one (S,G) Join destined to the upstream neighbor with the highest IP address - It will create one (S,G) Join destined to the upstream neighbor that was learned first. - It will create three (S,G) Joins, sending one to each upstream PIM neighbor in the path of the SPT [&] A router has been receiving multicast data from the SPT for several minutes. Suddenly that router receives an IGMP Leave packet from its only, connected multicast Receiver. Based on this scenario, which of the following statements are true? - The router will transmit a PIM-Prune message up the SPT - The router will take no action. - The router will forward the IGMP Leave up the SPT - The router will transmit a PIM-Prune message up the Shared Tree