1.2 Data Compression
Authored by Simon Graham
Computers
8th - 10th Grade
Used 104+ times
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25 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
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
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What does Lossy Compression do to files?
Increases the file size and keeps the same quality
Eliminates no information at all
Decreases the file size and keeps the same quality
Eliminates unnecessary information in a file to reduce file size
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is Lossless Compression?
No information is lost but file size is increased
There is no loss of information at all after compression
Files which have the exact same data after compression
Compression involves an algorithm
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What type of compression would you use to compress a video?
Lossy
Lossless
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What type of compression would you use to compress a text file?
Lossy
Lossless
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
When Lossy compression is used data is lost?
True
False
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following are not in a compressed format?
JPEG
MPEG
Bitmap
MP3
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