What is the term for the combination of a host's IP address and a process's TCP or UDP port, separated by a colon?

What is the term for the combination of a host's IP address and a process's TCP or UDP port, separated by a colon?

• A. Session
• B. Socket
• C. Port
• D. Endpoint

Answer: (B)

A socket is the endpoint defined by a host’s IP address and a process’s port, written as IP:port. This combination uniquely identifies where data should be delivered on a networked device and which application will receive it. The IP pinpoints the machine, the port selects the specific process or service, and together they form the address the transport layer uses for TCP or UDP communication. While an endpoint is a related idea and a port or an IP address alone isn’t sufficient to route data, the term most commonly used for this pairing is socket.

A socket is the endpoint defined by a host’s IP address and a process’s port, written as IP:port. This combination uniquely identifies where data should be delivered on a networked device and which application will receive it. The IP pinpoints the machine, the port selects the specific process or service, and together they form the address the transport layer uses for TCP or UDP communication. While an endpoint is a related idea and a port or an IP address alone isn’t sufficient to route data, the term most commonly used for this pairing is socket.