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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