WHY WE REQUIRE LAYERING IN COMPUTER NETWORKS?

1. It makes discussion easy

2. It makes updating easy

LAYERS OF COMPUTER NETWORKS

1. Application layer -> Responsible for moving of good to truck

2. Transport Layer -> Responsible for moving of good from truck to ship

3. Network Layer -> Responsible for moving of ship from Calicut to Lisbon

4. link Layer -> Responsible for connecting various in networks ships

5. Physical Layer -> Ocean

6. VICE VERSA

Encapuslation

Each layer add some encapulated data when data is passed through it & removes in reverse process