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CompTIA A+ 220-1101 Practice Question

Which type of hard drive is typically denoted by a rotation speed of 15,000 revolutions per minute (rpm), thereby offering quick access times and high data transfer rates?

Energy-efficient mobile hard disk drive
Standard desktop hard disk drive
Enterprise-class hard disk drive
Solid-state drive used in mobile devices

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Answer Description

The 15,000rpm specification refers to the rotational speed of the platters within a hard drive. At this speed, the hard drive can perform read and write operations faster than drives with lower rpm specifications like 5,400rpm or 7,200rpm. This high speed is especially beneficial in scenarios that demand rapid data retrieval and high input/output operations per second (IOPS), such as database servers or other high-transaction environments. Drives with rpm values such as 5,200, 7,200, and 10,000 provide varying levels of performance and are often found in desktops and laptops, with 5,400rpm being better suited for energy savings and 7,200rpm being a common performance level for standard desktop usage.

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CompTIA A+ 220-1101

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