What technology does traditional POTS rely on?

Traditional POTS, which stands for Plain Old Telephone Service, relies on analog technology. This technology transmits voice signals over the telephone lines in continuous electrical waves, which represent the sound vibrations of the human voice. As a result, POTS operates using a method of communication based on amplitude modulation of electrical signals.

Analog technology is characterized by its use of continuous waves to convey information, in contrast to digital technology that encodes data into discrete binary formats (0s and 1s). Traditional telephone systems utilize circuits that support these analog signals, enabling basic voice communication.

The other options involve modern advancements: fiber optic technology uses light signals to transmit data at high speeds, wireless technology involves radio waves for communication, and digital technology encodes voice signals into digital data formats for transmission. Understanding that POTS relies fundamentally on the analog transmission of signals clarifies why this is the correct choice.