Start practice test
Back to Display Technologies
Guide: Understanding and Answering Questions on Refresh Rate

The 'Refresh Rate' is a critical concept related to display technologies in the CompTIA A+ certification scope.

What is Refresh Rate?
Refresh rate, measured in Hertz (Hz), informs us about the number of times an image is updated or 'refreshed' on the screen in one second. For instance, a 60Hz refresh rate means the image on your screen is refreshed 60 times in a second.

Why is Refresh Rate Important?
The importance of a high refresh rate is particularly evident in fast-paced scenarios such as gaming, where smooth and lag-free visuals are crucial. Similarly, for general multimedia consumption, a higher refresh rate can lead to a much more comfortable and enjoyable viewing experience.

How does Refresh Rate work?
Every display has a controller which 'refreshes' the screen image by instructing each pixel to change its color and intensity as needed. The higher the refresh rate, the more frequently these updates happen, leading to smoother and more detailed motion on screen.

Exam Tips: Answering Questions on Refresh Rate
1. For exam questions that refer to screen flicker or image stability, you should consider the refresh rate as a potential factor in the query.
2. You might get questions comparing refresh rates (60Hz vs 120Hz, for example). Remember, higher refresh rates generally equate to smoother motion.
3. Remember, a faster refresh rate drains battery life faster, especially on mobile devices. This concept could be used in scenario-based questions.
4. If you're asked about the impact of refresh rate on the user experience, tie it back to gaming or multimedia consumption for a comprehensive answer.
Understanding the 'Refresh Rate' concept thoroughly can help you answer various questions regarding display technologies on your CompTIA A+ exam effectively.

image/svg+xml
Go Premium

CompTIA A+ Preparation Package (2024)

  • 4902 Superior-grade CompTIA A+ practice questions.
  • Accelerated Mastery: Deep dive into critical topics to fast-track your mastery.
  • Unlock Effortless CompTIA A+ preparation: 5 full exams.
  • 100% Satisfaction Guaranteed: Full refund with no questions if unsatisfied.
  • Bonus: If you upgrade now you get upgraded access to all courses
  • Risk-Free Decision: Start with a 7-day free trial - get premium features at no cost!
Refresh Rate practice test

The refresh rate measures how many times per second a display updates its image, expressed in hertz (Hz). Common refresh rates are 60Hz, 120Hz, and 240Hz. A higher refresh rate results in smoother motion and a more responsive experience, especially in fast-paced content such as video games or sports. However, a higher refresh rate also demands more processing power and may consume more energy. To utilize a high refresh rate, both the display and the connected device must support the same refresh rate value, as well as the chosen resolution.

Time: 5 minutes   Questions: 5

Test mode:
Start practice test

Practice more Refresh Rate questions

More Refresh Rate questions
15 questions (total)
Start 15 question test
image/svg+xml
Go Premium

CompTIA A+ Preparation Package (2024)

  • 4902 Superior-grade CompTIA A+ practice questions.
  • Accelerated Mastery: Deep dive into critical topics to fast-track your mastery.
  • Unlock Effortless CompTIA A+ preparation: 5 full exams.
  • 100% Satisfaction Guaranteed: Full refund with no questions if unsatisfied.
  • Bonus: If you upgrade now you get upgraded access to all courses
  • Risk-Free Decision: Start with a 7-day free trial - get premium features at no cost!