what are the work of 7 layers in osi model?

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what are the work of 7 layers in osi model?..

7 layers in ISO-OSI model are
------------------------------

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

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what are the work of 7 layers in osi model?..

Answer / tanushree agrawal

7 layer in network.

7. APPLICATION LAYER - which give us GUI interface to work
or see.like HTTP ftp telnet.
6. PRESENTATION LAYER - it`s decide how to data send.through
network.
5.SESSION LAYER - it establish connections between two
devices.
4.TRANSPORT LAYER - its decide to data travel through
network.
3.NETWORK LAYER - it give path to data for travel(like IP
ADDRESS and PORT NUMBER).
2.DATA LINK LAYER - it confirm that data has been sent.
1.PHYSICAL LAYER - it data into electronic format or u can
say 0 and 1 format which calls BIT.

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what are the work of 7 layers in osi model?..

Answer / kanipakambalaji

Application Layer
User interface Layer

Presentation Layer

Session Layer
Which Separtes data from one application to another
Transport
to transfer data using UDp,TCP
Network Layer
Logical Addressing( IP addressing ) Routing

Data Link Layer
Physical addressing ( MAC addressing), Framing,Error
Control,Flow control

Physical Layer
Cables, connectors & Hub
Responsible for bit transmission

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