In a communication system, what does the term "noise" refer to?

A. Unwanted signals that interfere with the transmitted signal
B. The frequency range used for transmission
C. The bandwidth of the communication channel
D. The power of the transmitted signal

Explanation:

Noise refers to unwanted signals or disturbances that interfere with the transmission of the intended signal, degrading the quality of communication.

Tags: Communications MCQ, Electronics and Communication Engineering