JNCIE-SP: Juniper Networks Certified Expert – Service Provider (2021) — Question 7

Which two statements about heating and cooling design are correct? (Choose two.)

Answer options

• A. All devices in a rack should be installed so that the port panels are on the same regardless of the air flow direction.
• B. All devices in a rack should be installed so that the air flow is in the same direction regardless of the port panel location.
• C. In the hot-aisle/cold-aisle design, air enters through vents in the hot-aisle and exists through cold-aisle vents.
• D. The hot-aisle/cold-aisle design maximizes the cooling potential of the air conditioning system.

Correct answer: C, D

Explanation

The correct answers are C and D because in a hot-aisle/cold-aisle design, air indeed enters through the hot-aisle vents and exits through the cold-aisle vents, which maximizes cooling efficiency. Options A and B are incorrect as they do not accurately describe the importance of aligning devices based on airflow direction and port panel location.