In MODEMS
A. Several digital signals are multiplexed
B. A digital signal changes some characteristic of a carrier wave
C. Digital signal is amplified
D. All of the above
E. None of the above
Answer: Option B
Solution (By Examveda Team)
A modem is a device or program that enables a computer to transmit data over, for example, telephone or cable lines. Computer information is stored digitally, whereas information transmitted over telephone lines is transmitted in the form of analog waves.Source : webopedia.com
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