ITPEC FE Subject A October 2024 Question 10
ITPEC FE Subject A October 2024 — Question 10 of 60
Disk Defragmentation — reorganizes fragmented file data into contiguous blocks for faster access.
What it does:
- Files get split into fragments scattered across the disk over time
- Defragmentation collects fragments into contiguous blocks
- Reduces seek time for the disk head → faster file access
Why not others:
- (b) Clean up temporary/junk files — that is disk cleanup, not defragmentation
- (c) Delete IBG and increase capacity — IBG (interblock gap) relates to tape storage, not disk defragmentation
- (d) Protect from physical failures — that is the role of RAID or backups
Key point: Defragmentation = faster access by reducing head movement, not cleaning or protecting.
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