Which statement below about the difference between analog and digital signals is incorrect?
A.
Adigital signal produces a saw-tooth wave form.
B.
Analog signals cannot be used for data communications.
C.
An analog signal produces an infinite waveform.
D.
An analog signal can be varied by amplification.
Explanation:
The correct answer is “Analog signals cannot be used for data communications”. The other answers
are all properties of analog or digital signals.