File Compression

_______ is reencoding a file in a way that uses fewer bits than the original, but keeps most or all of the information intact.

• Encoding

• Compression

• Expansion

• Summarizing

__________ compression means that the file is identical, bit for bit, to the original uncompressed file.

• Lossy

• Lossless

• Compressed

• File

_________ compression is another technique that changes the original file a little bit.

• Lossy

• Lossless

• Compressed

• File

Lossy compression is commonly used for image, video, and audio files because human sight and hearing are imperfect and cannot detect small losses in the data.

• TRUE

• FALSE

Which kind of file would be hurt most by a lossy compression algorithm?

• A text document

• An audio file containing music

• An audio file containing speech

• A digital photograph

Compressed files consume less storage space and transmit _________ than uncompressed files

• much more slowly

• much more quickly

• larger

• more information