Which countermeasure enhances redundancy for physical facilities hosting cloud equipment during the threat of a power outage?

Enhancing redundancy for physical facilities hosting cloud equipment during the threat of a power outage is crucial for maintaining uptime and reliability. The correct choice focuses on ensuring that there are multiple sources of power supply to equipment, which is essential for critical operations.

Implementing multiple and independent power circuits to all racks means that if one power source fails, the racks can continue to receive electricity from another, thus mitigating the risks associated with power outages. This redundancy is a key strategy in cloud environments to ensure that operations remain unaffected by single points of failure, such as a loss of power from a single circuit.

In addition, this setup allows for maintenance and upgrades to be performed on one power circuit without taking down the entire system, further enhancing the reliability and stability of the cloud services provided by the facility. By having independent power circuits, organizations can significantly improve their resilience against power disruptions, ultimately ensuring service continuity and data availability.

The focus on this countermeasure is particularly important in cloud environments where uptime is critical to business operations and where any service disruption could lead to significant financial losses or impact customer satisfaction.