WorksheetsJ277 1.5.2 - Utility Software
Total questions: 16
Worksheet time: 8mins
A fragmented hard drive is one in which…..?
Program instructions and data are spread across tracks and sectors on the hard disk drive
Programs and instructions are grouped together to occupy a continuous section of the hard disk drive
A hard disk drive that has been dropped and broken into lots of pieces
The hard disk drive is split into portions each representing a different logical drive.
When a hard drive becomes fragmented reading and writing files becomes…...?
Faster
Slower
No different
Harder
Defragmentation will aim to…..?
Make more space on the hard drive
Move files further apart from each other
Move free space closer together
A Defragmented hard drive will decrease the computers performance?
True
False
A fragmented disk takes longer to read from and write to.
True
False
Defragment of an SSD can damage the device?
True
False
Utility programs are usually…..?
Part of the Operating System
Bought on a disk from a store
Only needed if you connect to the Internet
Very Expensive to buy
To scramble data so that it is unreadable is a form of….?
Compression
Encryption
Backup
Defragmentation
Encryption does not prevent someone from intercepting a message it only prevents them from being able to understand it.
True
False
Unencrypted messages are called...?
Originaltext
Plaintext
Ciphertext
Keytext
Encrypted messages are called...?
Originaltext
Plaintext
Ciphertext
Keytext
Lossy Compression is…..?
Usually performed on text
When some original data is lost, and the original file cannot be re-created
The original file can be re-created from the compressed file
Turning the text into a format that only a reader with a key can decrypt it
Lossless Compression is….?
Usually performed on video files
When some original data is lost and the original file cannot be re-created
The original file can be re-created from the compressed file
Turning the text into a format that only a reader with a key can decrypt it
JPEG is which type of compressed file format?
Lossy
Lossless
MP3 is which type of compressed file format?
Lossy
Lossless
PNG is which type of compressed file format?
Lossy
Lossless
