Chapter 2. Physical Layer Networking Concepts

<feature><title>Objectives</title>

This chapter covers the following Cisco-specified objectives from the “Describe the operation of data networks” and “Implement a small switched network” sections of the 640-822 ICND1 exam:

<objective>

Interpret network diagrams

</objective>
<objective>

Select the appropriate media, cables, ports, and connectors to connect switches to other network devices and hosts

</objective>
<objective>

Describe the purpose and functions of various network devices

</objective>
</feature>
<feature><title>Outline</title>

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