If a client and a server are to communicate over a network, then which inter process popularly used commmication method is popularly used?

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Answer 1

The correct answer is Option 3) Sockets.

Key Points

Sockets are the most commonly used method for inter-process communication (IPC) over a network.
A socket provides an endpoint for sending and receiving data across a network using standard protocols like TCP or UDP.
They allow client-server models to exchange data between applications on the same system or across different systems via IP addresses and port numbers.
Each socket is identified by a combination of IP address and port number, enabling reliable bidirectional communication.

Additional Information

Option 1 – Named pipe: Used for IPC on the same machine; not typically used for network communication.
Option 2 – Semaphore: Used for synchronization, not for data communication between client and server.
Option 4 – Message queuing: Suitable for asynchronous communication but less common for real-time client-server networking.
Socket Types:
- TCP Socket: Reliable, connection-oriented
- UDP Socket: Unreliable, connectionless
Common Use Cases: Web browsers, email servers, FTP, online chat applications