100. Communications signals represented in a binary format are said to be ________.

A. continuous

B. digital

C. sequential

D. analog

105. The ________ is a device that converts digital computer signals into analog signals so that they can

be sent over a telephone line.

A. printer

B. scanner

C. modem

D. digitizer

107. A ________ is a system of interconnected computers, telephones, or communications devices that

can communicate and share resources.

A. terminal

B. router

C. network

D. server

108. A network that covers a wide geographical area is called a ________.

A. LAN

B. WAN

C. MAN

D. HAN

109. A network that covers a city or a suburb is called a ________.

A. WAN

B. LAN

C. MAN

D. Internet