Which software defragments the disk to place each file's segments contiguously on disk?

Which software defragments the disk to place each file's segments contiguously on disk?

• A. graphics tablet
• B. defragmentation software
• C. disk cache
• D. data bus

Answer: (B)

Disk fragmentation happens when a file’s data ends up in scattered blocks across the disk. Defragmentation software reorganizes that data, moving blocks so each file’s segments sit next to one another. This contiguity lets the disk head read the entire file with fewer seeks, improving read performance. The other items don’t perform this reorganization. A graphics tablet is just an input device for drawing. A disk cache speeds access by storing recently used data in fast memory, but it doesn’t change how the disk is laid out. A data bus is the hardware pathway that moves data around, not a tool for rearranging stored data. So defragmentation software is the option that puts each file’s pieces contiguously on disk.

Disk fragmentation happens when a file’s data ends up in scattered blocks across the disk. Defragmentation software reorganizes that data, moving blocks so each file’s segments sit next to one another. This contiguity lets the disk head read the entire file with fewer seeks, improving read performance.

The other items don’t perform this reorganization. A graphics tablet is just an input device for drawing. A disk cache speeds access by storing recently used data in fast memory, but it doesn’t change how the disk is laid out. A data bus is the hardware pathway that moves data around, not a tool for rearranging stored data. So defragmentation software is the option that puts each file’s pieces contiguously on disk.