Exam 9: Communications and Networks

A(n) ____________________ is a transmission media on which data, instructions, or information travel.

Nearly the entire telephone network today uses analog technology, with the exception of the final link from the local telephone company to a home, which is digital.

A(n) ____________________ is a simple, inexpensive network that typically connects fewer than 10 computers.

Whereas a standard dial-up telephone line uses multiplexing so that multiple signals share the same line, digital T-carrier lines carry only one signal.

Two examples of ____ are cable television lines and telephone lines.

A phoneline network is a network that uses the same lines that bring electricity into the house.

The quality and consistency of the connection on a dedicated line are worse than a dial-up line because dedicated lines provide a temporary connection.

____ transmits at fast speeds on existing standard copper telephone wiring, but requires that the user's location and the telephone company's modem be located within a certain distance of each other.

The design of computers, devices, and media in a network, sometimes called the ____, is categorized as either client/server or peer-to-peer.

A(n) ____ network uses cellular radio technology to provide users with high-speed Internet connections, as long as they are in the network's range.

____________________ is a form of broadcast radio that is used widely for mobile communications, specifically wireless modems and telephones.

A digital signal consists of a continuous electrical wave.

An advantage of DSL is that the user's location (and DSL modem) and the telephone company's DSL modem can be located any distance from each other.

With Wi-Fi, in open or outdoor areas free from interference, the computers or devices should be beyond 10,000 feet of each other.

A Wi-Fi home network is less expensive than a HomeRF network.

Groupware is a component of a broad concept called ____, which includes network hardware and software that enables group members to communicate, manage projects, schedule meetings, and make group decisions.

Most groupware provides personal information manager (PIM) functions.

A home powerline cable network is an easy-to-install and inexpensive network that uses existing telephone lines in the home.

Figure 9-4 A network like the one shown in Figure 9-4 ____ to install.

A GPS receiver is a handheld, mountable, or embedded device that contains all of the following except a(n) ____.