Chapter 14 / 14.9 / 14.9.2

14.9.2 What Is The OSI Model And Why Is It Important?

Explains the purpose of layered communication architectures and describes the seven layers of the OSI Reference Model. Shows how layering simplifies network design, standardization, interoperability, and troubleshooting.

1. Why Was the OSI Model Developed?
2. What Is a Layered Architecture?
3. What Are the Seven Layers?
4. What Does Each Layer Do?
5. Why Is Layering Such a Good Idea?
6. How Does Information Move Through the Layers?
7. Does Every Layer Communicate Directly with Its Equivalent Layer?
8. Why Is the OSI Model Still Taught?
9. Is the OSI Model Used Exactly in Practice?
10. How Does the OSI Model Help with Troubleshooting?
11. Will the OSI Model Remain Relevant?
12. What Should You Remember?

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