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OSI 7-layer model

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**OSI 7-layer model**

What is OSI 7-layer model?

The OSI (Open Systems Interconnection) 7-layer model is a conceptual framework that standardizes the functions of a telecommunication or computing system into seven abstraction layers: Application, Presentation, Session, Transport, Network, Data Link, and Physical. It is used to guide hardware and software vendors in creating networking products and helps to visualize and understand the communication process over a network.

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