Which of the following can affect electrostatic discharge in a network operations center?

Fire suppression systems are designed to extinguish fires and do not have a direct impact on the generation, accumulation, or discharge of electrostatic energy.

Environmental monitoring systems observe and report conditions like temperature and humidity, but they do not actively control or influence the factors that cause or prevent electrostatic discharge.

Proximity card access systems manage physical security and entry to a facility, which is unrelated to the generation or mitigation of electrostatic discharge.

Humidity directly influences the buildup and dissipation of electrostatic charges; lower humidity levels increase the risk of ESD, while higher humidity helps reduce it by making surfaces more conductive. Therefore, proper humidity controls within a network operations center (NOC) are crucial for mitigating ESD, which can damage sensitive electronic equipment.