what is OSI model?

Question

what is OSI model?

Accepted Answer

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

The OSI model stands for Open Systems Interconnection model.
It was developed by the International Organization for Standardization (ISO) in 1984.
The model divides the communication process into seven layers, each with its own specific functions and protocols.
The layers are: Physical, Data Link, Network, Transport, Session, Presentation, and Application.
Each layer interacts with the layer above and below it, providing a standardized way for different systems to communicate.
For example, the Physical layer deals with the physical transmission of data, while the Application layer handles user interfaces and application protocols.
The OSI model helps in troubleshooting network issues by isolating problems to specific layers.
It allows for interoperability between different vendors and technologies.
The TCP/IP protocol suite, used in the internet, is based on the principles of the OSI model.

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