please only give a brief answer.

Problem 5: Consider the example internet shown in the figure on the next page. Suppose the source S1 send a packet to Group B. Show how the routers flood the network in DVMRP a. b. Show, if any, how the routers get pruned Problem 6: Consider the example internet shown in the figure on the next page. Suppose we are using PIM-SM for multicast. a. Show how the host HI joins the multicast (you need to show what does each router b. Show how the host H2 joins the multicast (you need to show what does each router c. Show how the host H3 joins the multicast (you need to show what does each router d. Suppose now that S1 need to transmit to Group B, what wil happen? nced to transmit and to where) nced to transmit and to wherc) nced to transmit and to whcrc)