The Need for Compression Quiz

What is the main purpose of compression algorithms?

• To reduce the amount of space needed to represent a file

• To increase the file size

• To delete unnecessary files

• To improve the quality of files

Which type of compression allows the original data to be perfectly reconstructed?

• Partial compression

• Hybrid compression

• Lossless compression

• Lossy compression

What is a key characteristic of lossy compression?

• It increases file size

• It is only used for text files

• It retains all original data

• It discards less important information

Which type of files can be compressed using lossless compression?

• Only audio files

• Text documents, simple images, and all binary data

• Only text documents

• Only images

Why can't lossy compression be used for documents?

• It requires special software

• It is too slow

• It increases the file size

• It can lead to missing characters, making the document unreadable

What is an example of a lossless compression technique?

• ZIP

• GIF

• MP3

• JPEG

What is an example of a lossy compression technique?

• JPEG

• PNG

• TXT

• ZIP

What is the benefit of lossy compression over lossless compression?

• It is faster

• It provides better compression ratios

• It retains all original data

• It is more secure

How does lossless compression describe data?

• By removing important information

• By using a different way that takes up less memory

• By increasing the file size

• By converting it to a different format

What is a common use of lossy compression?

• Text documents

• Simple images

• Photos and audio

• Binary data