A DSL modem converts digital signals to analog signals and vice versa so that data can travel along an analog phone line.
A MAN typically includes one or more WANs like those shown in the accompanying figure, but covers a smaller geographic area than a LAN.
A WLAN cannot communicate with a wired LAN.
A star network consists of a single central cable, to which all computers and other devices connect.
IP hijacking is one of the largest Internet security threats.
In a fiber-optic cable, each strand, called an optical fiber, is as thin as a human hair.
Users connected to a network have access to software on the network.
Who invented the Ethernet?
With TCP/IP, each packet contains data as well as the recipient (destination), origin (sender), and the sequence information used to reassemble the data at the destination.