Which of the following environmental controls options saves the hardware from humidity and heat, increases...

Hot and cold aisle containment systems are environmental control strategies used in data centers to manage the temperature and humidity levels. This setup involves alternating rows of cold air intakes and hot air exhausts. The cold aisles face air conditioner output ducts, while the hot aisles face air conditioner return ducts. This arrangement can significantly improve the efficiency of cooling systems, protect hardware from overheating and humidity, enhance hardware performance, and maintain a consistent room temperature.

References: The explanation provided is based on general knowledge of environmental control systems in IT infrastructure. For detailed information, it is recommended to refer to the EC-Council Certified Security Specialist (E|CSS) study materials and official documentation.