H446_4_DB_Compression Quiz

H446_4_DB_Compression Quiz

12th Grade

79 Qs

quiz-placeholder

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H446_4_DB_Compression Quiz

H446_4_DB_Compression Quiz

Assessment

Quiz

Computers

12th Grade

Practice Problem

Medium

Created by

George Dong

Used 3+ times

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79 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the primary purpose of file compression?

To increase the file size

To reduce the storage space of files on disk

To enhance the quality of images

To slow down data transmission

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the difference between lossy and lossless compression?

Lossy compression retains all information, lossless removes unnecessary information

Lossy compression removes non-essential information, lossless retains all information

Both remove all information

Both retain all information

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Why is compression important for images on websites?

To make images look more colorful

To enable a web page to load quickly

To increase the file size

To reduce the number of images

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is a consequence of lossy compression on images?

Improved image quality

Increased file size

Displaying untidy and blocky compression artefacts

Faster data transmission

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What type of compression is likely to be used for the following: a website image, a zipped file of long text documents and images, a PDF instruction manual?

Lossy compression

Lossless compression

Run Length Encoding

MP3 compression

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the main advantage of lossless compression?

It reduces file size significantly

It maintains exact accuracy with no data loss

It is faster to process than lossy compression

It is used for audio files

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What does Run Length Encoding (RLE) primarily record?

Every pixel in a sequence

The value and number of times a pixel repeats

Only the color of each pixel

The position of each pixel

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