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CCCENT/CCNA ICND1 100-105 Official Certification Guide, First Edition by Wendell Odom

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Chapter 1. Introduction to TCP/IP Networking

This chapter covers the following exam topics:

1.0 Network Fundamentals

1.1 Compare and contrast OSI and TCP/IP models

1.2 Compare and contrast TCP and UDP protocols

Welcome to the first chapter in your study for CCENT and CCNA! This chapter begins Part I, which focuses on the basics of networking. Because networks require all the devices to follow the rules, this part starts with a discussion of networking models, which gives you a big-picture view of the networking rules.

You can think of a networking model as you think of a set of architectural plans for building a house. A lot of different people work on building your house, such as framers, electricians, bricklayers, painters, and so on. The blueprint ...

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