Certified Information Systems Security Professional (CISSP) Practice Exam 2025 - Free CISSP Practice Questions and Study Guide

Analog technology utilizes continuous waves of information to convey data. In analog communication, information such as sound, light, or other signals is represented by varying physical quantities, such as electrical voltage levels, which change smoothly over time. This continuous nature allows for the transmission of a wide range of values, making it suitable for audio and video signals, where subtleties in the signal’s amplitude and frequency play a crucial role in preserving the fidelity of the sound or image being transmitted.

In contrast, discrete digital signals represent information in distinct values or steps, typically using binary code, which is characteristic of digital technology rather than analog. Quantum information transfer involves principles of quantum mechanics and is not applicable to traditional analog communication systems. Compressed data packets refer to a method of optimizing storage and transmission efficiency in digital communications and are not relevant to the continuous nature of analog signals. Therefore, the choice highlighting continuous waves of information accurately reflects the fundamental characteristic of analog technology.