What is osi layer What is diffrent between lan and wan

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Accepted Answer

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

OSI layer stands for Open Systems Interconnection layer.
It is a model that helps in understanding how different components of a network interact with each other.
The seven layers of the OSI model are Physical, Data Link, Network, Transport, Session, Presentation, and Application.
Each layer has its own specific functions and protocols.
The model allows for interoperability between different network devices and systems.
For example, the Transport layer ensures reliable delivery of data between two hosts.
The Application layer provides services for user applications, such as email or web browsing.

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What is the meaning of dns server

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