In the following scenario, the left and right TCP clients communicate with a TCP server using sockets. Shown in the figure is the Python code used to create a single welcome socket on the server (the welcome socket itself is not shown graphically). The code for the client sockets is also given. The three sockets shown on the server were created as a result of the server accepting connection requests on this welcome socket from the two clients (one client connection on the left and two client connections on the right).

Answer the following questions:

What is the source port number for packet C? _____________________________________

What is the destination port number for packet C? ______________________________

What is the source port number for packet B? ______________________________

What is the destination port number for packet B? ____________________

What is the source port number for packet A? _______________________________

What is the destination port number for packet A? ________________________________

What is the source port number for packet D? ________________________

What is the destination port number for packet D? ________________________