WJEC GCSE DT - 1.1 Data
Quiz by Adam Masters
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- Q1
What are the tiny squares on an image referred to as?
Squares
Pixels
Curves
Lines
30s - Q2
Images that contain pixels are known as what type of image?
Bitmap
Vector
30s - Q3
The number of bits that can be stored per pixel will determine what about theimage?
Pixilation
Resolution
Colour depth
Metadata
30s - Q4
A decrease in colour depth will lead to....
More bits stored per pixel
Less bits stored per pixel
30s - Q5
What term is used to refer to the number of pixels that can be stored per inch?
Resolution
Metadata
Sampling
Colour depth
30s - Q6
How many bits in a nibble?
2
1
3
4
30s - Q7
How many nibbles in a byte?
2
1
4
3
30s - Q8
How do you convert GB to TB?
Divide by 1000
Add 1000
Subtract 1000
Multiply by 1000
30s - Q9
How do you convert GB to MB?
Divide by 1000
Subtract 1000
Multiply by 1000
Add 1000
30s - Q10
Which of these is not a type of a compression method?
Defragmentation
Lossless
Lossy
30s - Q11
Which method of compression will use an algorithm to temporarily group data together so it can be restored?
Lossless
Lossy
30s - Q12
Which method of compression deletes unnecessary data permanently?
Lossless
Lossy
30s - Q13
Which method of compression makes the file irreversible?
Lossy
Lossless
30s - Q14
Which type of secondary storage requires a laser to hit the surface in order to read the data?
RAM
Optical
Magnetic
Solid-state
30s - Q15
What device includes a driver head will tap onto the surface to read and write data?
USB flash drive
ROM
Hard drive
Solid-state drive
30s