Compression

What is file compression?

• Making a file smaller

• Deleting parts of a file

• Increasing a file’s quality

• Duplicating a file

What is lossy compression?

• A method that removes some data permanently

• A method that reduces file size without any loss of data

• A method for increasing data size

• A way to increase file quality

Which file format is an example of lossy compression?

• PNG

• JPEG

• WAV

• ZIP

What is lossless compression

• A compression method that allows perfect reconstruction of the original file

• A method that loses some data for file size reduction

• A technique that duplicates files

• A way to enhance file quality

Lossy compression reduces file size by permanently removing some _______ from the original file, resulting in a slight loss of quality.

Lossless compression allows the original file to be perfectly _______ after compression, making it ideal for situations where data integrity is crucial.

A common file format that uses lossless compression for images is _______ , while a popular lossy format is _______.

Which business might prioritize lossy compression over lossless?

• A medical imaging company

• A law firm archiving contracts

• A streaming service like Spotify or YouTube

• A graphic design agency creating logos

What is a key difference between lossy and lossless compression?

• Lossy compression retains all original data, lossless does not

• Lossy compression permanently removes some data, lossless retains all original data

• Lossy increases file size, lossless decreases file size

• There is no difference

How does lossy compression affect music files like MP3s?

• It improves sound quality

• It adds more bass

• It removes parts of the audio that are considered less important for human hearing

• It increases file size