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7 Layers of OSI
ISO is the organization and OSI is a Model!
There are totally 7 layers !
Headers and tailers are added at each layers !
Headers are added to the data at the Layers 6,5,4,3,2!
Trailers are added usually at Layer 2.
7. Application Layer
6. Presentation Layer
5. Session Layer
4. Transport Layer
3. Network Layer
2. Data Link Layer
1. Physical Layer
Physical Layer
Data Link Layer
Network Layer
Transport Layer
Session Layer
Presentation Layer
Application Layer
Summary of Layers
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