Exam CISSP topic 1 question 481 discussion

With regards to physical security, the MOST critical element of an organization’s recovery plan is to restore power (Option D). In a disaster scenario or other physical security incident, it is likely that power to the organization's facilities will be lost. Without power, other critical infrastructure elements, such as the network, communications, and monitoring systems, may not function properly or may not be accessible. Therefore, restoring power is essential to ensure that these other critical elements can be restored and the organization can resume normal operations.

With regards to physical security, the most critical element of an organization’s recovery plan is to restore POWER. Because without power the door cannot lock properly; communication can be established only if power supply is available. So, restoring power is more important to restoring communication as communication will depend on power.

No power can go home

Power can remain off, backup diesel generators can kick in. UPS helps overcome power glitch till diesels are up.

D. Restore power. In the context of physical security and disaster recovery, restoring power is typically the most critical element of an organization's recovery plan. Without power, many other essential systems and services, including communications, network infrastructure, and monitoring, cannot function. Restoring power is often the first step in the recovery process, as it enables the organization to begin restoring other critical functions and services. Therefore, ensuring the availability of power sources and having contingency plans for power restoration is a fundamental aspect of any recovery plan.