CompTIA Security+ Exam Prep

Answer: A - Dust can prevent hardware from working properly. Dust affects a device’s functionality by clogging up the fan that is supposed to be cooling the device. This would be true of any airborne particles, such as smoke. Although most disk drives are hermetically sealed, other devices can be affected by air-borne contaminants. It is imperative, to protect equipment and to avoid spending capital, to ensure airborne material and particle concentrations are monitored for inappropriate levels. Air-quality control devices such as closed-loop air-conditioners and ventilation systems can deal with these issues most effectively.