Cambridge AS Level Computer Science: Multimedia

Cambridge AS Level Computer Science: Multimedia

11th Grade

15 Qs

quiz-placeholder

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Cambridge AS Level Computer Science: Multimedia

Cambridge AS Level Computer Science: Multimedia

Assessment

Quiz

Computers

11th Grade

Practice Problem

Medium

Created by

Hazel Intatano

Used 1+ times

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15 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is a bit-map image?

A system that uses pixels to make up an image.

A system that uses only lines and curves to make up an image.

A system that uses only text to make up an image.

A system that uses only sound to make up an image.

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

If an image has a resolution of 4096 x 3192 pixels, what does this mean?

The image is made up of 4096 pixels in width and 3192 pixels in height.

The image is made up of 4096 colours.

The image is made up of 3192 sound samples.

The image is made up of 4096 frames per second.

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Explain the difference between image resolution and screen resolution using your own words.

Image resolution is the number of pixels in an image, while screen resolution is the number of pixels a screen can display.

Image resolution is the number of colours in an image, while screen resolution is the number of screens an image can be shown on.

Image resolution is the number of bits per pixel, while screen resolution is the number of colours a screen can display.

Image resolution and screen resolution are the same thing.

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the pixel density (ppi) of an Apple iPhone 8 with a 5.5-inch screen and a resolution of 1920 × 1080 pixels?

2202 ppi

1920 ppi

401 ppi

1080 ppi

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is a key advantage of vector graphics when resizing images?

They do not lose quality when scaled up

They become blurry when enlarged

They require more storage space

They cannot be resized

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

According to the comparison table, why do vector graphic images not require large file sizes?

They are made up of simple geometric shapes

They use a lot of pixels

They are always very realistic

They use high image resolution

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

When deciding between using a vector graphic or a bit-map image, which factor should be considered if the image needs to look very realistic?

Bit-map images are usually the best option

Vector graphics are always more realistic

File size is not important

Vector graphics are always the best option

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