COMPTIA A+ Practice Exam

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Ace your COMPTIA A+ certification with our practice exam. Engage with a variety of questions including multiple choice and performance-based, complete with hints and detailed explanations. Prepare effectively and boost your confidence for the big day!

Each practice test/flash card set has 50 randomly selected questions from a bank of over 500. You'll get a new set of questions each time!

Practice this question and more.

How fast is the data rate for a DVD at 8x speed?

2.7 MB/sec
5.4 MB/sec
10.8 MB/sec
21.6 MB/sec

The correct answer is: 10.8 MB/sec

The data rate for a DVD at 8x speed is calculated based on the standard data transfer rate of a DVD, which is approximately 1.35 MB/sec at 1x speed. Therefore, at 8x speed, the data rate would be 1.35 MB/sec multiplied by 8, resulting in a total of 10.8 MB/sec. This calculation shows how DVD speeds are defined and the relationship between the multiple speeds and the base data transfer rate. The choice of 10.8 MB/sec accurately reflects this multiplication of the base rate by the speed factor, confirming it as the correct answer.