Chapter 3
Network Devices
Exam Objectives in this Chapter
Introduction
A network is composed of many different devices; some perform a single function and others perform a variety of functions, from routing data to applying security filters. As networking devices become more complex, they also become more versatile, in that they may be able to perform multiple roles that previously could only be carried out by individual devices. Some network devices are complex enough to warrant their own operating systems for intensive and detailed configuration. In some cases, these operating systems can be switched out, substituted, or used to configure the device to perform roles traditionally carried out by other devices. For example, a Layer ...
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