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CCNA Cisco Certified Network Associate Study Guide (Exam 640-802) by Richard Deal

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OSI Reference Model
CERTIFICATION OBJECTIVES
 
 
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 ...

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