Socket Programming

Question 1

TCP Procedure

Answer 1

Must set up connection before sending

1. Create pipe
2. Send data through pipe
3. Close pipe

Question 2

UDP Procedure

Answer 2

Unreliable, No pipe, label each packet with destination (IP and port)

Question 3

Socket

Answer 3

Reliable, byte-stream oriented. Door between application process and end-end transport protocol

Question 4

TCP Socket Programming

Answer 4

1. Server creates socket for incoming TCP request, creates variable to hold client socket
2. Client makes socket, sends TCP connection to server, and creates variable to hold server socket
3. Server waits until TCP request and accepts client socket
4. Client sends request using socket
5. Server reads request from socket and sends reply to socket
6. Client read reply from socket
7. Both endpoints close the TCP

Question 5

UDP Socket Programming

Answer 5

1. Server creates socket
2. Client makes socket
3. Client makes datagram (message) with server IP and port included, and sends it to server
4. Server reads datagram from socket and writes reply with client IP and port to socket
5. Client read reply from socket and closes socket
6. Server keeps socket open