CAT Theory Grade 11 Practice Test 2026 - Free Grade 11 CAT Theory Practice Questions and Study Guide

Disk fragmentation happens when parts of files are stored in non-contiguous locations on the disk. Because the read/write head must jump to multiple places to assemble a single file, data retrieval becomes slower and the overall system can feel sluggish. This is why the best description is that file pieces are scattered across the disk, causing slower performance.

If data were stored in one continuous block, access would be faster because the drive could read the whole file in a single sequence. The idea of the disk automatically repairing damaged sectors is about error repair rather than how files are laid out. Moving files into RAM to speed up access describes caching, not fragmentation.