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OSI Reference Model, 1st Ed. -- See also OSI Model, 2nd Edition

The Open Systems Interconnection (OSI) model is a cornerstone of network communications. A thorough understanding of its layers and functioning is important for any internetworking professional. This tutorial presents a model overview and discusses:

  • The seven elements (layers) of communications
  • The functions that happen at each layer of the model
  • Communications within, and between, layers
  • How network adapters, hubs, switches, and routers function within the model
  • Preparing data for transmission between devices at the same layer, and at different layers.

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  • Author: Howard C. Berkowitz

    Technical Level: CCNA™

    Date of Issue: 10-01-2023
    Rating:   4 of 5  

     Table of Contents

     3 Sample Study Questions
     30 Study Questions

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