One encoding technique that converts analog data to a digital signal is ____.
A) NRZ-L
B) Manchester
C) pulse code modulation (PCM)
D) NRZ-I

Question

Quizplus · Accepted Answer

Pulse code modulation (PCM) is a technique that involves sampling an analog signal at regular intervals and quantizing each sample into a numerical value. This numerical value is then encoded as a digital signal. PCM is commonly used in telecommunication systems and digital audio recording.

The other encoding techniques listed (NRZ-L, Manchester, and NRZ-I) are also used in digital communications, but they do not involve converting analog data to digital. Instead, they are used for encoding digital data into a physical signal that can be transmitted over a communication channel.

One Encoding Technique That Converts Analog Data to a Digital