Lossless vs Lossy Data Compression

which of the following is true of lossy and lossless compression techniques?

• Lossy compression techniques are no longer commonly used.

• Lossless compression is fully reversible, meaning the original file can be recreated bit for bit.

• Lossless compression throws away unimportant details that a human being will likely be unable to detect.

• Lossy compression is only possible on files that are at least one gigabyte in size before compression.

Which of the following is true of lossy and lossless compression techniques?

• Both lossy and lossless compression techniques will result in some information being lost from the original file.

• Neither lossy nor lossless compression can actually reduce the number of bits needed to represent a file.

• Lossless compression is only used in situations where lossy compression techniques can't be used.

• Lossy compression is best suited for situations where some loss of detail is tolerable, especially if it will not be detectable by a human.

data compression algorithm that allows the original data to be perfectly reconstructed from the compressed data.

• lossy compression

• lossless compression

_______ (or irreversible compression) a data compression method that uses inexact approximations, discarding some data to represent the content. Most commonly seen in image formats like .jpg.

• lossy compression

• lossless compression

reduces quality

• lossy compression

• lossless compression

Makes the file smaller by deleting parts of the file permanently (forever)

• Lossy Compression
• Lossless Compression

What type of compression does the ZIP format use?

• Lossy

• Lossless

Compression makes it _______ to send, upload and stream data

• Faster

• Slower

Has this image been compressed using Lossy or Lossless?

• Lossy

• Lossless

Uncompressed audio and video files require less memory than compressed files....

• True
• False