What kind of communications device sends and receives data and information to and from a digital line, such as ISDN and cable?
A)a hub
B)a router
C)a switch
D)a modem

Question

Quizplus · Accepted Answer

A modem (short for Modulator-Demodulator) is a communication device that sends and receives digital information over a digital line, such as ISDN and cable. It converts the digital signal from the computer to an analog signal that can be sent over the line and then converts the analog signal back to a digital signal for the computer to interpret.

What Kind of Communications Device Sends and Receives Data and Information