Which binary signaling technique uses a scheme in which zero voltage represents a 0 bit and the voltage for a 1 bit does not drop back to zero before the end of the bit period?
A) RTZ
B) NRZ
C) polar NRZ
D) polar RTZ

Question

Quizplus · Accepted Answer

NRZ (Non-Return-to-Zero) is the binary signaling technique that uses a scheme in which zero voltage represents a 0 bit and the voltage for a 1 bit does not drop back to zero before the end of the bit period. RTZ (Return-to-Zero) is the opposite, where the voltage returns to zero before the end of the bit period. Polar NRZ and polar RTZ are variations of NRZ and RTZ, respectively, that use both positive and negative voltages to represent 1 and 0 bits. However, since the question specifically asks for a scheme where the voltage does not drop back to zero before the end of the bit period, NRZ is the best answer.

Which Binary Signaling Technique Uses a Scheme in Which Zero