3.2.2 Utility Software Edexcel

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/user area.

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 disk drive will improve the computer's performance?

• True

• False

To scramble data so that it is unreadable without a key the definition of….?

• Compression

• Encryption

• Backup

• Defragmentation

Encryption does not prevent someone from intercepting a message it only prevents them from being able to understand it without a key.

• 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 in compression, and the original file cannot be re-created exactly as it was

• ...when the original file can be re-created exactly as it was from the compressed file

• ...turning the text into a format that only a reader with a key can decrypt it