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CS Edexcel 2.3b Compression

Authored by Stuart Smith

Computers

9th - 10th Grade

Used 1+ times

CS Edexcel 2.3b Compression
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6 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is a common application of lossy compression in everyday technology?

Streaming music and video content

Backing up files for security

Storing documents in the cloud

Editing high-resolution images

2.

DRAG AND DROP QUESTION

30 sec • 2 pts

Which type of compression is which?

Data is permanently removed from the file - (a)  

The original data can be reconstructed - (b)  

Lossy
Lossless

3.

MULTIPLE SELECT QUESTION

30 sec • 2 pts

Which of the following formats use lossy compression?

MP3 audio files

ZIP files

PNG images

JPEG images

4.

MULTIPLE SELECT QUESTION

30 sec • 2 pts

Which of the following formats use lossless compression?

MP3 audio files

ZIP files

PNG images

JPEG images

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Why is lossy compression important for websites?

It makes files easier to load

It prevents data loss during downloads

It enhances the quality of images displayed

It allows pages to load faster by reducing file size

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

ZIP is a format that will compress files together into one package. Why does it need to be lossless?

So that you can get the smallest size possible from the package

So that you can extract the files again from the package

So that you can remove the unnecessary data from the files in the package

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