
AQA Computer Science GCSE: Compression & RLE

Quiz
•
Computers
•
10th - 11th Grade
•
Medium
Sam Knott
Used 123+ times
FREE Resource
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Which type of compression ensures that all of the data is kept?
Lossless
Lossy
2.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Lossy compression removes data that isn't needed...
True
False
3.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Compression makes file sizes...
Bigger
Smaller
Keeps them the same
4.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
An advantage of lossless compression is...
All data is lost
The file size stays the same
All of the important data is kept
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A disadvantage of lossless compression is...
There is a big reduction in file size
There is only a slight reduction in file size
There is no reduction in quality
Cannot be used on text or software files
6.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
RLE is a type of compression
True
False
7.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
The first line of this image in RLE would be...
8W, 1Bl, 20B, 1W
10B, 4Y, 17R, 2G
2G, 10P, 17Y, 2Bl
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