CompTIACompTIA
220-1101 · Question #611
220-1101 Question #611: Real Exam Question with Answer & Explanation
The correct answer is A: Brightness. The brightness setting of a laptop display directly influences battery life because the backlight is a significant power consumer. Higher brightness requires more power, thus reducing battery longevity.
Mobile devices
Question
Which of the following features of a laptop display influences the battery life of the laptop?
Options
- ABrightness
- BResolution
- CContrast
- DAspect ratio
Explanation
The brightness setting of a laptop display directly influences battery life because the backlight is a significant power consumer. Higher brightness requires more power, thus reducing battery longevity.
Common mistakes.
- B. Resolution, while affecting the number of pixels, has a comparatively minor impact on battery life compared to brightness, as the power consumption is more related to illuminating the pixels rather than their count.
- C. Contrast settings adjust the difference between the lightest and darkest areas of the screen; it typically has a negligible impact on overall power consumption compared to brightness.
- D. Aspect ratio describes the proportional relationship between the width and height of the display and has no direct influence on the power consumption or battery life.
Concept tested. Laptop display power consumption and battery life
Topics
#Laptop display#Battery life#Power consumption
Community Discussion
No community discussion yet for this question.