Certified Data Centre Professional (CDCP) Practice Exam 2025 – All-In-One Study Resource to Ace Your Certification!

Positioning air conditioning units perpendicular to the hot aisle is essential for optimizing airflow and cooling efficiency in a data center. This arrangement allows the cooling units to effectively manage the heat produced by the servers located in the hot aisle. By facing the cooling units toward the hot aisle, the cool air they generate can be directed into the hot aisle where the servers are expelling heat. This design promotes better air circulation and minimizes hotspots, ensuring that the temperature remains consistent and within acceptable limits for the equipment.

Moreover, this configuration helps to separate the cold air from the hot air, a practice that contributes to the overall cooling strategy known as hot aisle/cold aisle containment. It enables the facility to maximize cooling efficiency while reducing energy costs, which is a critical consideration in data center operations.

The other options may not provide the same level of effectiveness for cooling. For instance, placing units parallel to the hot aisle could lead to inadequate airflow, whereas positioning them directly in the cold aisle might impede the cold air supply. Finally, placing units in a corner would likely create inefficiencies due to poor air distribution and increased likelihood of uneven cooling. By orienting the units perpendicular to the hot aisle, operators can ensure optimal thermal management within the data center environment.