A technician notices inlet temperatures to rack-mounted servers are significantly higher in the center of the rack as compared to the top and bottom of the rack. Which of the following is the MOST…

Blanking panels seal unused rack unit spaces to enforce proper front-to-back airflow and prevent hot exhaust air from bypassing around servers back to the cold air intake. When panels are missing in the center of the rack, hot air from nearby servers recirculates through the open gaps and re-enters server inlets in that zone, raising inlet temperatures specifically in the center while the top and bottom remain cooler.

Excessive humidity increases the risk of condensation and corrosion but does not cause localized inlet temperature increases in the center of a rack versus other positions.

A room temperature set too high would raise inlet temperatures uniformly across all rack positions, not produce a localized hot spot concentrated in the center.

Undersized air conditioning units would cause a general rise in temperatures throughout the data center room, not a specific hot spot isolated to the center rack units.