Networks can be classified by geographical scope as PANs, , and WANs. The cables and signals used to transport data from one network device to another are a communication . Wired channels include twisted pair wires, cables used for cable television, and -optic cables used for high-capacity trunk lines. Wireless channels use signals and microwaves. Government agencies regulate some wireless . The transmission capacity of a channel is referred to as: .
Channels that are capable of moving at least 25 Mbps are classified as: .
Networks can be configured in various , such as star, mesh, point-to-point, or bus. Any device in a network is referred to as a(n): . Data equipment includes computers. Data equipment includes modems and routers. Additional DCEs include hubs, switches, bridges, repeaters, and access points. Networks use physical, transport, and arrival communication to set the rules for efficiently transmitting data and handling errors.