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!

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What is the capacity of a double-sided DVD?

4.7GB
9.4GB
25GB
128GB

The correct answer is: 9.4GB

A double-sided DVD is able to hold data on both sides of the disc, effectively doubling its capacity compared to a single-sided DVD. It is important to note that the key word here is "double-sided," as this distinguishes it from other types of DVDs such as single-sided or dual-layer DVDs. Option A, 4.7GB, is the capacity of a standard single-sided DVD. Option C, 25GB, is the capacity of a single-sided Blu-ray disc. Option D, 128GB, is the capacity of a dual-layer Blu-ray disc which effectively combines two layers on each side, totaling to four times the capacity of a single-sided Blu-ray disc. Option B, 9.4GB, is the correct answer as it represents the capacity of a double-sided DVD. This is achieved by having one layer of data on each side of the disc, with each layer holding up to 4.7GB of data. Therefore, a double-sided DVD can hold a total of 9.4GB of data, making it ideal for storing larger files or longer videos.