OSI model explain in detail

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The OSI model is a conceptual framework that standardizes the functions of a telecommunication or computing system into seven layers.

The OSI model stands for Open Systems Interconnection model.
It divides network communication into seven layers: Physical, Data Link, Network, Transport, Session, Presentation, and Application.
Each layer has specific functions and interacts with adjacent layers to provide end-to-end communication.
For example, the Physical layer deals with the physical connection between devices, while the Application layer deals with user interfaces and data exchange.
The OSI model helps in troubleshooting network issues by isolating problems to specific layers.