COMPUTER FUNDAMENTALS

COMPUTER SOFTWARE

SYSTEM SOFTWARE

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Utility system software may include:encryption softwaredefragmentationdata compressionWhich best describes defragmentation?
A
To scramble data in a way that it is unreadable to anybody who doesn’t have a key to be able to unscramble this.Data is “scrambled” using a key and then decrypted using a keyData is is unreadable if anyone is to intercept it
B
When a hard disk drive is new-files get added onto the disk in order-very much like starting with a blank piece of paper and adding to itAs files are deleted-this leaves gapsWhen new files are saved-the files fill the gaps and become fragmentedThis software groups files back together
C
Reducing the size of the file by performing an algorithm on the original dataLossless-The original file can be re-created as no data is lostLossy-Some of the original data is lost and the original file can not be re-created
D
None of the above
Explanation: 

Detailed explanation-1: -Microsoft Drive Optimizer (formerly Disk Defragmenter) is a utility in Microsoft Windows designed to increase data access speed by rearranging files stored on a disk to occupy contiguous storage locations, a technique called defragmentation.

Detailed explanation-2: -Windows Disk Management The last native Windows utility that can improve the speed and efficiency of a hard disk is Disk Management.

Detailed explanation-3: -Defraggler is a tool that helps you to Speed up your computer with defragmentation. This application can defrag disk safely and securely. It helps you to organize empty disk space.

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