Compression Quiz

What is compression?

• A way of encrypting files

• Reducing the number of files in a folder

• A tool that reduces file size to save space

• Increasing file quality by resizing

How does compression help the user?

• Makes the computer run faster

• Allows storage of more data without upgrading

• Improves screen resolution

• Reduces CPU usage

What is lossy compression?

• Stores files in password-protected folders

• Compression that permanently removes data to reduce size

• Compression that can be fully reversed

• Removes viruses while compressing

What is a disadvantage of lossy compression?

• Larger file size

• Cannot be used for text documents

• File cannot return to original quality

• Reduces playback speed

What is lossless compression?

• Reduces size by deleting critical parts of the file

• Reduces size while maintaining full quality and allowing full restoration

• Encrypts the file

• Compresses only image files

Which of the following would be best compressed using lossless compression?

• HD video

• MP3 audio

• Text document

• High-resolution photo

Which compression type is best for music streaming?

• Lossless

• Uncompressed

• Lossy

• Encrypted

What happens when a file is decompressed after lossless compression?

• It stays compressed

• It’s unreadable

• It’s returned to its exact original form

• It’s changed permanently

Which of the following is most likely to use lossy compression?

• ZIP file

• FLAC audio file

• JPEG image

• DOCX document

Which statement is true about lossless vs lossy compression?

• Lossless saves more space than lossy

• Lossy keeps all original data

• Lossless is fully reversible, lossy is not

• Lossy is used only for text files