Network+ Study Guide & Practice Exams

Chapter 3. Network Devices

Domain I Objectives in this Chapter:

1.6	Identify the purposes, features and functions of the following network components:
	1.6.1	Hubs
	1.6.2	Switches
	1.6.3	Bridges
	1.6.4	Routers
	1.6.5	Gateways
	1.6.6	CSU / DSU (Channel Service Unit / Data Service Unit)
	1.6.7	NICs (Network Interface Card)
	1.6.8	ISDN (Integrated Services Digital Network) Adapters
	1.6.9	WAPs (Wireless Access Point)
	1.6.10	Modems
	1.6.11	Transceivers (media converters)
	1.6.12	Firewalls

Introduction

A network is composed of many different devices, some of which perform a single function, and some of which 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 ...