OSI Model layers - Networking

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• Prajakta Pandit   -Posted on 23 Oct 15
  
  OSI Model :
  
  - OSI (Open Systems Interconnect) reference model consists of seven layers : physical, data-link, network, transport,session, presentation and application.
  
  - OSI model layers are not concerned exactly to the protocol stack running on an actual system.
  
  - It is easy to add multiple-network models.
  
  - It encrypts the data for security purpose.
  
  - The protocols are hidden in the OSI model so they can be easily replaced by new protocols when the technology changes.
  
  

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