OCR Computer Science - 2.6 - Compression

OCR Computer Science - 2.6 - Compression

8th Grade

12 Qs

quiz-placeholder

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OCR Computer Science - 2.6 - Compression

OCR Computer Science - 2.6 - Compression

Assessment

Quiz

Computers

8th Grade

Medium

Created by

Paul Meehan

Used 259+ times

FREE Resource

12 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

The purpose of data compression is to decrease file sizes .
True
False

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A jpeg is a compressed image file.
True
False

3.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

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

4.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

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

5.

MULTIPLE CHOICE QUESTION

45 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

6.

MULTIPLE CHOICE QUESTION

45 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

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

When Lossy compression is used data is lost?
True
False

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