Monday, 18 November 2013

OSI Layer and their functions

   LAYERS                     FUNCTIONS                        DATA FORMAT             DEVICE USED

7 Application           Creating a data at user interface             File                             Computer

6 Presentation          Compressing ,Encryption                       File                            Computer

5 Session               i. Establish connection between
                                  transmitter and receiver .                       N.A                            Computer
                             ii. Maintaining, controlling, terminating
                                  the communication

4 Transport            Identifying the relevant process or we      Segment                  Computer
                              can say: "Process-to-process "delivery.

3 Network             Identify relevant host or we can say         Data gram                 Router
                               "host-to-host" delivery .

2 Data link            Identifying relevant hardware.                   Frame                       Switch

1 Physical             Use for  establishing electrical link            Bits( 0 & 1 )      Hub, Cable, wires
                            between the each pair of devices.
                 

Thanking You

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