Which of the following results in datacenters with failed humidity controls? (Select TWO).

A.
Excessive EMI

B.
Electrostatic charge

C.
Improper ventilation

D.
Condensation

E.
Irregular temperature

Explanation:
Humidity control prevents the buildup of static electricity in the environment. If the humidity drops
much below 50 percent, electronic components are extremely vulnerable to damage from
electrostatic shock. Most environmental systems also regulate humidity; however, a
malfunctioning system can cause the humidity to be almost entirely extracted from a room. Make
sure that environmental systems are regularly serviced. Electrostatic damage can occur when
humidity levels get too low. Condensation is a direct result from failed humidity levels.