
Section C - 4 - Text & Image Representation - Image Represen
Authored by Kiran Jones
Computers
Professional Development
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1.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
How is a bitmap image stored?
Choose three statements that are true.
Bitmap images are made up of a grid of pixels.
The colour of each pixel is represented using a binary number.
Bitmap images use at least 24-bits to store a pixel.
A pixel is an individual dot of colour.
Bitmap images are also known as Vector images.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following is an example of a common image resolution?
1024×768
72 pixels per inch
24-bit
16,777,216 colours
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following is a positive impact of a larger image resolution?
File sizes will be larger
File sizes will be smaller
The image can use more colours
The image has smoother edges
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How many colours can be stored with an 8-bit colour depth?
2
8
256
16,777,216
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following is a negative impact of a larger colour depth?
File sizes will be larger
File sizes will be smaller
The image can use more colours
The image has smoother edges
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What type of compression reduces file sizes while still maintaining the original quality of the image?
Lossy
Lossless
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the technique used to mitigate the impact of when compression reduces the number of colours in an image?
Lossing
Dithering
Merging
Gradienting
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