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OSI Model

  • OSI Means Open System Interconnection.
  • OSI is a reference model.
  • This is The Image that explains overall OSI Model

Simplex Mode

  • OSI has 7 layers. Each layer has it's own functions.
  • All layers are dependent on each other.

Which is first layer of OSI Model??

  • If you are sender then first layer is Application Layer.
  • If you are receiver then first layer is Physical Layer.

Hope You Understand The Basic Concept Of OSI Model. Let's Meet On Day 4 With TCP/IP Model.