Problem 1 Suppose web clients with IP addresses A and B are connecting to a web server with IP address S. Client A opens one connection listened to by process P1 on port a. Client B opens two connections listened to by processes P3 and P4, respectively, on ports b1 and b2, respectively. The server runs a single process P2 listening on port s. Port: s Port: a Port: b1 Port: b2 P2 P1 P3 P4 UU IP: S IP: A IP: B a) Use the following table to give the header fields of packets between the nodes. Source IP Destination IP source port# destination port# P1 P2 P3 P2 P4 P2 P2 P4 b) Can port a be the same as port b1? c) Can port b2 be the same as port b1? d) How many sockets the server needs to create? Of what type