Copy of Unit 2.6 Data Representation Lesson 5 - Compression
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is compression? (1-4)
To convert one file to another
To reduce the size of data to save space
To minimize the time taken for a file to be downloaded
To compress something by pressing it very hard
2.
MULTIPLE CHOICE QUESTION
30 sec • 2 pts
What does Lossy Compression do to files? (4-6)
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 • 2 pts
What is Lossless Compression? (4-6)
No information is lost but file size is increased
There is no loss in information at all after compression
Files which have the exact same data after compression
Compression that involves an algorithm
4.
MULTIPLE CHOICE QUESTION
30 sec • 3 pts
What type of compression does the ZIP format use? (7-9)
Lossy
Lossless
5.
MULTIPLE CHOICE QUESTION
30 sec • 2 pts
What type of compression would you use to compress a video? (4-6)
Lossy
Lossless
6.
MULTIPLE CHOICE QUESTION
30 sec • 2 pts
What type of compression would you use to compress a text file (4-6)
Lossy
Lossless
7.
MULTIPLE CHOICE QUESTION
30 sec • 2 pts
What type of compression may remove some of the data?
Lossy
Lossless
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