1. What performance problem motivates peer-to-peer communication? 2. Once a socket is created, how does an application reference the socket? 3. Name two operating systems that offer the socket API. 4....

1. What performance problem motivates peer-to-peer communication?

2. Once a socket is created, how does an application reference the socket?

3. Name two operating systems that offer the socket API.

4. Give a typical sequence of socket calls used by a client and a typical sequence used by a server.