Select the true statement regarding analog and digital signals.
A) Analog signals vary over time continually and can be represented by a sine wave, while digital signals are binary 1s and 0s using voltage levels.
B) Digital signals vary over time continually and can be represented by a sine wave, while analog signals are binary 1s and 0s using voltage levels.
C) A modem is not required to transmit LAN data over a WAN link that uses analog signals.
D) On fiber optic media, a 1 bit can be represented as a pulsing analog signal.

Question

Quizplus · Accepted Answer

Analog signals vary over time continually and can be represented by a sine wave, while digital signals are binary 1s and 0s using voltage levels. This statement is true. Option B is incorrect as digital signals are not represented by a sine wave. Option C is incorrect as a modem is required to convert digital data to analog signals for transmission over a WAN link. Option D is incorrect as fiber optic media uses light to represent digital signals, not analog signals.

Select the True Statement Regarding Analog and Digital Signals