312-49 · Question #32
312-49 Question #32: Real Exam Question with Answer & Explanation
The correct answer is A: Cluster. A cluster (also called an allocation unit) is the smallest logical unit of disk space that an operating system can allocate to a file. Clusters are made up of one or more sectors (typically 512 bytes each). Disk platters are the physical spinning disks inside a hard drive, and sp
Question
What is the smallest allocation unit of a hard disk?
Options
- ACluster
- BSpinning tracks
- CDisk platters
- DSlack space
Explanation
A cluster (also called an allocation unit) is the smallest logical unit of disk space that an operating system can allocate to a file. Clusters are made up of one or more sectors (typically 512 bytes each). Disk platters are the physical spinning disks inside a hard drive, and spinning tracks are the circular paths on platters — these are physical units, not allocation units. Slack space is the unused space within an allocated cluster when a file does not fill the entire cluster — it is forensically significant but is not an allocation unit itself.
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