What are the use of socket API?

Answer 1

The socket API is an Interprocess Communications (IPC) programming interface;Originally provided as part of the Berkeley UNIX operating system (1980);It is a de facto standard for programming IPC;Adopted by many modern operating systems, e.g. Sun Solaris and Windows systems;Underlying service for sophisticated IPC, e.g. RPC, RMI, CORBA, Web Services, etc.

A socket API provides a programming construct termed a socket;A process wishing to communicate with another process must create an instance, or instantiate, such a construct;The two processes then issues operations provided by the API to send and receive data Also in case of Java, Datagram sockets can support both connectionless and connection-oriented communication at the application layer. This is so because even though datagrams are sent or received without the notion of connections at the transport layer, the runtime support of the socket API can create and maintain logical connections for datagrams exchanged between two processes, as you will see in the next section.

Answer 2

Sockets are used to both remove and tighten bolts. They must be used with a ratchet, on which the socket attaches. Sockets come in two different types, metric and standard. Metric wrenches are measured in millimeters.(9mm,10mm,etc.) Standard wrenches are measured in fractions of an inch.(1/4 inch, 5/16 inch, etc.) The reason for two different sets is that car manufacturers use both metric and standard bolts on vehicles, so a mechanic must have both.