Question

Which of the following is a characteristic of digital signal?

(a) It takes quantized value

(b) Its waveform is a continuous function

(c) The maximum number of signals that can be produced by N bits is  2^N-1

(d) There is no loss of value after converting an analog signal to digital signal

I have been asked this question in an internship interview.

My question is from Signals in chapter Signals and Amplifiers of Electronic Devices & Circuits

Answer 1

Right option is (a) It takes quantized value

To explain I would say: Digital signal is non continuous and has discrete sets of possible value which it can take.