Question

In addition to the TCP socket there are local sockets. Research the uses of local sockets and comment on why local sockets are designed to work like TCP sockets

Answer 1

Ans. The socket is also used as for the software endpoint of node internal interprocess communication which use the same API as the network socket. On a TCP network every device have its own IP address. Local sockets is the form of loopback that uses to test a socket client and the server application running in the similar TPF system without needing a real network local socket address, consisting of the local IP address and (for TCP and UDP, but not IP) a port number

• protocol: A transport protocol, e.g., TCP, UDP, raw IP. This means that (local or remote) endpoints with TCP port 53 and UDP port 53 are distinct sockets, while IP does not have ports.
• A socket that has been connected to another socket, e.g., during the establishment of a TCP connection, also has a remote socket address.