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6. What is a natural number?
- Integers
- Positive Integers only
- Negative Integers only
- Float Values only
7. What is metadata?
- The use of extra data to ensure correct image quality
- Extra data on an image that gives more information
- The unique ID given to every image to identify it
- The use of extra data to ensure corruption has not occured
8. What is a rational number?
- A decimal with at least a single 1
- An imaginary number
- A float value
- A positive integer
9. What is a checksum?
- A system for counting the uniqueness of a block of given code
- Where input is fed through an algorithm to get a quantifiable result to verify integrity
- A way of debugging your code
- A method of compression which removes the average majority of pixels
10. What is the size of an image calculated by?
- Resolution x Encoder Efficiency
- Resolution x Colour Depth
- Resolution x Colour Depth x Metadata^2
- Colour depth x Metadata
11. How do you calculate the size of a sound file?
- colour depth * sample rate * 2
- bit depth * sample rate * 2
- bit rate * length
- bit rate * sample rate
12. What is majority voting?
- Where each bit is sent three times and the majority bit will be taken
- A method of compression which removes the average majority of pixels
- Where each bit is trebled so it is more efficient
- The use of voting to remove unwanted data
13. What is a real number?
- Positive or negative fractions and decimals
- Positive integers only
- Positive or negative integers, fractions or decimals
- Fractional numbers only
14. How big is one KibiByte?
- 16^2 B
- 2^9 B
- 2^10 B
- 10^3 B
15. What is a parity bit?
- A bit that checks if the 7 bits before it are odd or even
- A bit that checks the data packet to see if it is odd or even
- A bit that ensures efficient scanning
- A bit that polarises the barcode
16. What is signed binary?
- Binary with a sign bit at the start
- Float Binary Numbers
- Binary without a sign bit at the start
- Negative binary numbers
17. What is the resolution of an image?
- The size of an image
- The height of an image
- The pixels in an image
- The number of unique colours in an image
18. What is unsigned binary?
- Negative binary numbers
- Float Binary Numbers
- Binary without a sign bit at the start
- Binary with a sign bit at the start
19. What is Unicode?
- A system for encoding characters from different cultures
- A way of debugging your code
- A system for counting the uniqueness of a block of given code
- A way of adding greek lettering together to form a data point
20. What is a check digit?
- A digit used to verify the correct scanning of a barcode
- A digit used to enter a data point into a database
- A digit used to scan in the rest of the information
- A digit used to give the barcode a unique ID