What is OSI Model ?


The Open Systems Interconnection model was created to help standardize communication between computer systems. It divides communications into seven different layers, which each include multiple hardware standards, protocols, or other types of services.

The seven layers of the OSI model include:

1. The Physical layer
2. The Data Link layer
3. The Network layer
4. The Transport layer
5. The Session layer
6. The Presentation layer
7. The Application layer

When one computer system communicates with another, whether it is over a local network or the Internet, data travels through these seven layers.

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