CompTIA
220-801 · Question #779
220-801 Question #779: Real Exam Question with Answer & Explanation
The correct answer is C: Fn key. On laptops, display brightness is most directly and quickly adjusted using the function (Fn) key combined with a dedicated brightness hotkey on the keyboard.
Question
A user states that the display is not very bright on their laptop. Which of the following is the MOST likely location to adjust the brightness?
Options
- AIn the Device Manager of the operating system
- BIn the BIOS
- CFn key
- DIn the video display drivers
Explanation
On laptops, display brightness is most directly and quickly adjusted using the function (Fn) key combined with a dedicated brightness hotkey on the keyboard.
Common mistakes.
- A. Device Manager manages hardware drivers and does not provide a brightness adjustment control panel.
- B. The BIOS manages firmware-level hardware settings and does not include display brightness controls for the operating environment.
- D. Video display driver settings can affect resolution and color profiles but are not the primary or most direct method for adjusting backlight brightness.
Concept tested. Laptop display brightness adjustment method
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