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Microsoft® Windows® Networking: Essentials by Darril Gibson

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Chapter 3

Understanding the OSI Model

The Open Systems Interconnection (OSI) Model is one of the most referenced models in networking. It includes seven layers with specific activities, protocols, and devices working on each. Many network exams test your knowledge of the different elements of the OSI Model, and even some hiring managers quiz potential network employees on their knowledge. The TCP/IP Model is similar but includes only four layers instead of seven. This chapter introduces both models.

  • Understanding the OSI Model
  • Understanding the TCP/IP Model
  • Mapping devices on the OSI and TCP/IP models
  • Mapping protocols on the OSI and TCP/IP models

Understanding the OSI Model

The seven-layer Open Systems Interconnection (OSI) model is a general ...

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