220-1002 Question #290: Real Exam Question with Answer & Explanation

The correct answer is D: Power saving mode. Power saving mode is the most likely cause. When a device's battery drops below a configured threshold, power saving mode activates automatically and aggressively dims the screen to conserve battery - even without the user changing any settings. Auto-brightness (C) adjusts based

Question

A user reports the screen on a mobile device frequently dims even when the device settings are not being changed. Which of the following is MOST likely the cause?

Options

AFaulty backlight
BHigh contrast mode
CAuto-brightness
DPower saving mode

Explanation

Power saving mode is the most likely cause. When a device's battery drops below a configured threshold, power saving mode activates automatically and aggressively dims the screen to conserve battery - even without the user changing any settings. Auto-brightness (C) adjusts based on ambient light sensors and would not cause unexplained, frequent dimming. A faulty backlight (A) would typically cause permanent or random flickering, not consistent dimming tied to usage patterns. High contrast mode (B) alters color schemes but does not dim the screen.

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