COMPTIA A+ Practice Exam

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Prepare for the COMPTIA A+ Exam with confidence! Sharpen your skills through comprehensive quizzes and detailed explanations. Equip yourself with the knowledge needed to succeed in your certification journey.

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What formula is used to calculate disk size?

# of Cylinders * Heads * # of sectors/track * 512bytes/sector
# of Cylinders + Heads + # of sectors/track * 512bytes/sector
# of Cylinders * Heads / # of sectors/track * 512bytes/sector
# of Cylinders * Heads - # of sectors/track * 512bytes/sector

The correct answer is: # of Cylinders * Heads * # of sectors/track * 512bytes/sector

The formula used to calculate disk size is the product of three factors the number of cylinders, the number of heads, and the number of sectors per track. This is because the total size of a disk is determined by the number of tracks on each head, the number of heads, and the number of sectors per track. Options B, C, and D are incorrect because they either add, divide, or subtract instead of multiplying these three essential factors. This would result in an incorrect calculation of the disk size.