2.2. Distinguish between network design elements and components.

Networks are becoming ever more complex structures. Small home or SOHO networks might consist of a handful of computers, a central file and print server, a router or switch, and an Internet link. Enterprise networks can be comprised of tens or hundreds of thousands of computers and thousands of servers with a seemingly endless string of cables, routers, switches, and other network devices. Enterprise networks often employ hundreds of subnets, require proxies and NAT servers, use VLANs, support VPNs, host virtualized servers, connect to DMZs and extranets, and more. Obviously, the larger and more complex a network is, the more there is to know about its components, elements, and ...

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