COMPTIA A+ Practice Exam

Question: 1 / 525

What is the capacity of a double-sided DVD?

4.7GB

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.

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25GB

128GB

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