Computer Network | Layers of Open System Interconnection (OSI) Model

OSI  model  consists of seven layers and provides standards for data communication.

1.     Physical  layer : physical layer is responsible for actual transmission of bits over the medium. It deals with the electrical and mechanical functio

2.     Data link layer : data link layer is responsible for node to node delivery of frames.

3.     Network layer : Network layer is responsible for end to end delivery of packets and routing.

4.     Transport layer : transport layers is responsible for end to end delivery of the entire message.

5.     Session layer : Session layer is responsible for establishing,managing and terminating sessions.

6.     Presentation layer : is responsible for translation, encryption and data compression.

7.     Application layer : application layer is responsible for providing access to the network resources