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Cisco A Beginner's Guide, Fifth Edition, 5th Edition by Anthony Velte, Toby Velte

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CHAPTER 4 Routing Overview
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A dizzying array of hardware, software, telecommunications media, and technical expertise goes into internetworking. Switches, hubs, firewalls, packets, gateways, ports, access servers, interfaces, layers, protocols, serial lines, LTE, DSL, SONET, frames, topologies—the list can seem endless. A route is defined as a course, way, or a road for passage or travel. So why then is routing the focus for this chapter? ...

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