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The OSI Model tutorial will walk you step by step through the OSI Model, its seven layers, show you how it works and present you with a real world example of the OSI Model in operation.

1. What is the OSI Model
2. The OSI Model's Seven Layers - Introduction
   1. OSI Model - Physical Layer
   2. OSI Model - Datalink Layer
   3. OSI Model - Network Layer
   4. OSI Model - Transport Layer
   5. OSI Model - Session Layer
   6. OSI Model - Presentation Layer
   7. OSI Model - Application Layer
3. How the OSI Model works
4. Real World Example of the OSI Model
5. OSI Model vs. Internet Model (TCP/IP Model)
6. Additional Note: OSI Model and GOSIP

Lesson 1: What is the OSI Model? >>