Which measurement represents the standard rotational velocity metric of modern high-performance desktop mechanical hard drives? MCQ with Answer and Explanation
Which measurement represents the standard rotational velocity metric of modern high-performance desktop mechanical hard drives?
A. MHz (Megahertz)
B. RPM (Rotations per minute)
C. Gbps (Gigabits per second)
D. IOPS (Input/Output Operations Per Second)
Answer: Option B
Solution (By JKSSB Mock Tests)
Mechanical hard drive speeds are fundamentally constrained by how fast their physical platters spin, measured in Rotations Per Minute (RPM), commonly 5400 or 7200 RPM.
Explanation:
A cluster (or allocation unit) is a group of sectors combined by the operating system's file system to form the smallest legal space where a file can be stored.
Explanation:
An SSHD (Solid State Hybrid Drive) combines a traditional HDD with a small amount of flash memory (usually NAND) to cache frequently used data, providing a balance of capacity and speed.
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