Absolute Beginner's Guide to A+ Certification

Chapter 21. Networking and Internet Connectivity

In this chapter

• Network Models

• Internet Connectivity Technologies

• Network Protocols

• TCP/IP Applications and Technologies

• Network Topologies

• Network Types

• Cable and Connector Types

• Installing Network Interface Cards

• Switches and Hubs

• Beyond LANs—Repeaters, Bridges, and Routers

• Networking Configuration

• Setting Up and Using Shared Resources

• Setting Up the Network Client

A network is a group of computers, peripherals, and software that are connected to each other and can be used together. Special software and hardware are required to make networks work.

Two or more computers connected together in the same office are considered a LAN (local area network). LANs in different cities can be connected to each other ...