CCNA Cisco Certified Network Associate Study Guide (Exam 640-802), 3rd Edition

2 OSI Reference Model

CERTIFICATION OBJECTIVES

2.01     Introduction to the OSI Reference Model

2.02     Layers of the OSI Reference Model

2.03     Encapsulation and De-encapsulation

         Two-Minute Drill

Q&A   Self Test

 

 

Before you can successfully configure Cisco switches and routers, you must understand some basic networking concepts outlined in this chapter and advanced concepts discussed in later chapters. The Open Systems Interconnection (OSI) Reference Model is the best place to start, since it will help you understand how information ...