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

Enhancing redundancy for physical facilities that host cloud equipment, particularly during power outages, is crucial for maintaining uptime and ensuring the reliability of services. The correct choice involves implementing multiple and independent power circuits to all racks. This design ensures that if one power source fails or is interrupted, the remaining circuits can continue to provide power to the equipment, thereby avoiding service disruption.

By having independent power circuits, the facility can also incorporate different power feeds from various utilities or even backup generators to further enhance resilience against outages. This redundancy not only provides continuous power but also facilitates maintenance by allowing one source of power to be taken offline without affecting the operation of the other circuits.

In contrasting elements, tier 2 network access providers relate to network connectivity rather than physical power resilience. Radio frequency interference blocking devices serve to eliminate interference but do not address power failure issues. Automated license plate readers at entry points are security measures aimed at monitoring access control, which doesn't impact the power supply to the cloud equipment housed within the facility. Thus, the focus on independent power circuits directly targets the need for managing power outages and improving system uptime.