Uninterruptible power supply (UPS)
Also called: UPS
Course: AP® Cybersecurity Shows up in: Unit 2: Securing Spaces
A battery backup that keeps a device running during a power outage; generators provide power at larger scale.
Appears in the course and exam description (CED): 2.3.B.72.3.A.2
Why it matters in Unit 2
It protects availability when power is cut by accident or by an adversary.
Example
A network switch keeps running for 20 minutes after the lights go out.
Learn it properly, with a checkpoint 2.3 Protecting Physical Spaces