1.3 L3 Data Storage and Compression

Open Ended

Describe reasons for compressing files (3)

Multiple Choice

What type of compression does the ZIP format use?

• Lossy
• Lossless

Multiple Choice

What type of compression would you use to compress a video?

• Lossy
• Lossless

Multiple Choice

What type of compression would you use to compress a text file?

• Lossy
• Lossless

Multiple Choice

When Lossy compression is used data is lost?

• True
• False

Multiple Choice

Which of the following are not in a compressed format?

• JPEG
• MPEG
• Bitmap
• MP3

Multiple Choice

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

• True
• False

Multiple Choice

Which compression technique reduces the file size by storing repeating details together?

• Lossy
• Lossless

Multiple Choice

Which compression technique removes data from the file to make it smaller?

• Lossy
• Lossless

Multiple Choice

The compressed file can be returned to the original

• Lossy
• Lossless

Multiple Choice

Generally used for images and sound files

• Lossy
• Lossless

Multiple Choice

I want to compress and send a friend a program file, which technique is best to use?

• Lossy
• Lossless