Saturday, August 31, 2013

aizkie_cute:)))

Hello! This is our second meeting.This is all about the OSI Model.


OSI Model- use for  solving problems or tracing problems.


The OSI Reference Model:


  • Application
  • Presentation
  • Session
  • Transport
  • Network
  • Data-Link
  • Physical


Application-this layer dealwith networking applications.
              ex:
                 email,web browsers

Presentation- is responsible for presenting the data in the required formal which may include:


  •  code formatting
  • encryption
  • compression
Session- establishes,manages,and termates,sessions between two communicating hosts.

Transport-breaks up the data from sending host and then reassembles it in the receiver.

Network-sometimes referred to as the "cisco layer".
              -provides logical addressing that routers used for.

Data-link-provides reliable transit of data across a physical link,the devices: switch,bridge.

Physical-physical media through which the data.    

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