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CCENT/CCNA ICND1 100-101 Official Cert Guide by Wendell Odom

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Chapter 3. Fundamentals of WANs

This chapter covers the following exam topics:

Operation of IP Data Networks

Recognize the purpose and functions of various network devices such as Routers, Switches, Bridges and Hubs.

Select the components required to meet a given network specification.

Predict the data flow between two hosts across a network.

Most Layer 1 and 2 networking technology falls into one of two primary categories: wide-area networks (WAN) and LANs. Because both WANs and LANs match OSI Layers 1 and 2, they have many similarities: Both define cabling details, transmission speeds, encoding, and how to send data over physical links, as well as data link frames and forwarding logic.

Of course, WANs and LANs have many differences as well, ...

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