
Data Representation Year 9 Comp Sci
Authored by Mr O'Connor
Other
8th Grade
Used 11+ times

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11 questions
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1.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
00101011000011010101
In terms of data representation, what are each of the above, individually known as?
A byte
A bit
A megabyte
Denary
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The elements of a digital image are called pixels (picture elements).
What is the term for the number of pixels within an image?
Fidelity
Pixel count
Resolution
1080p
3.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
How many bits are contained in the following example?
100
120
10
200
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The positive for a high resolution image is increased quality. What is the negative trade-off?
Only one colour
Increased representation (file) size
It won't load on certain computers
It can't be viewed on phones/tablets
5.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Which of these is the most commonly seen colour depth?
12 or 18 binary digits per pixel
2 or 6 binary digits per pixel
24 or 32 binary digits per pixel
100 or 180 binary digits per pixel
6.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
What does this tool called on Photoshop?
Rectangular Marquee Tool
Move Tool
Select Tool
Pen Tool
7.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
What does this tool called on Photoshop?
Polygonal Lasso Tool
Eraser Tool
Magnetic Lasso Tool
History Brush Tool
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