Data Rep: Compression

Which of the following would not be suitable for Lossy Compression?

• Images

• Music

• Videos

• Text

There are _____ different types of compression

• 2

• 3

• 4

Select the advantages for lossy compression

• Makes the file much smaller

• Will send much quicker

• A very simple algorithm

• The quality will not be affected much

Select the advantages for lossless compression

• Makes the file much smaller

• Will send quicker

• A very simple algorithm

• The quality will not be affected much

You would use ______ compression if you still needed to have a high quality image

• Lossy

• Lossless

You would use ______ compression if space was more important than quality

• Lossy

• Lossless

Which order is correct?

• Bit, Nybble, Byte, Kilobyte, Megabyte, Gigabyte, Terabyte

• Bit, Byte, Nybble, Megabyte, Kilobyte. Gigabyte, Terabyte

• Bit, Nybble, Byte, Megabyte, Kilobyte, Gigabyte, Terabyte

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

• Lossy Compression
• Lossless Compression

Makes the file smaller by giving repeated patterns/colours a specific code

• Lossy Compression
• Lossless Compression

What is compression?

• To convert one file to another
• To reduce the size of data to save space
• To minimise the time taken for a file to be download
• To compress something by pressing it hard