Uninterruptible Power Supply (UPS) provides the ability for equipment to continue operating when power is interrupted. Which option best describes this?

• A. A signaling system.
• B. A toll call recording system.
• C. A screen capture recorder.
• D. Provides the ability for equipment to continue to operate when power is interrupted.

Answer: (D)

The main idea is power resilience: an Uninterruptible Power Supply is designed to keep essential equipment running when the main power goes out by providing immediate backup power. This allows systems to continue operating, ride out short outages, and perform a safe shutdown if needed to prevent data loss, preserving service continuity. The other options describe functions that aren’t about power protection—signaling systems relate to communications, toll call recording focuses on recording, and screen capture recording is about capturing visuals—none of which address maintaining operation during a power interruption.