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Daily Practice · GCSE Computer Science

November 1975 5-a-day

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November 1975

30 sheets · 150 questions · GCSE

November 1975 compilationAll answers

Every sheet in November 1975

The same date always regenerates the same five questions, so a sheet you print today is the sheet a classmate prints tomorrow.

  1. 1st November 1975Explain what happens if a program tries to read index 5 of an array declared with 5 elements.
  2. 2nd November 1975Define the term 'pixel'.
  3. 3rd November 1975Order these from fastest access speed to slowest: RAM, cache, registers, secondary storage.
  4. 4th November 1975Which piece of UK legislation makes it a criminal offence to gain unauthorised access to a computer system?
  5. 5th November 1975Evaluate the expression 23 DIV 4.
  6. 6th November 1975State the correct order of the three operations used to read data from a text file.
  7. 7th November 1975A 1 TB hard disk drive costs 40 pounds. A 500 GB solid-state drive costs 60 pounds. Calculate the cost per gigabyte of each device, and state which is cheaper per GB. Use 1 TB = 1000 GB.
  8. 8th November 1975Define the term protocol.
  9. 9th November 1975A 'quantity' field on a website must only accept whole numbers from 1 to 10. Which validation check identifies that 15 has been entered?
  10. 10th November 1975A table called products has fields productId, name, price and stock. Write an SQL statement that changes the price of the product with productId 7 to 15.99.
  11. 11th November 1975A row of 8 pixels is WWWBBBWW. Use run-length encoding to encode this row as pairs of (colour, run length).
  12. 12th November 1975An array contains [9, 2, 6], to be sorted using insertion sort. Show the state of the array after each new element has been inserted into its correct position.
  13. 13th November 1975Complete: NOT 0 = ?
  14. 14th November 1975Convert the denary number 200 to hexadecimal, showing your working.
  15. 15th November 1975State what LAN stands for.
  16. 16th November 1975Explain the purpose of a breakpoint.
  17. 17th November 1975An 8-bit register stores the value 01100000 (denary 96). State the resulting 8-bit binary value after a left shift by 1 place, and state whether an overflow occurs.
  18. 18th November 1975Which CPU register holds the address of the next instruction to be fetched?
  19. 19th November 1975Distinguish between the network security threats known as phishing and pharming.
  20. 20th November 1975Explain why a running maximum should be initialised to the first element of the array rather than to 0.
  21. 21st November 1975A row of pixels is encoded using run-length encoding as: 3W 4B 3W. State the original row of pixels it represents.
  22. 22nd November 1975A photo file is 3.5 MB in size. Calculate its size in kilobytes (KB). Use 1 MB = 1000 KB.
  23. 23rd November 1975A streaming company records which shows each user watches and uses this to recommend similar shows. Explain one ethical concern this could raise, even if the company only uses the data to improve recommendations.
  24. 24th November 1975State the most appropriate data type for storing a person's shoe size if only whole sizes (e.g. 7, 8, 9) are allowed.
  25. 25th November 1975State the pseudocode operator commonly used to join (concatenate) two strings, then show how it joins 'Rev' and 'ision' to produce 'Revision'.
  26. 26th November 1975Give one example of an optical secondary storage device.
  27. 27th November 1975Name the four layers of the TCP/IP model in order from the one closest to the user.
  28. 28th November 1975State the term used for realistic data that a program would be expected to handle during normal use.
  29. 29th November 1975Define the term 'primary key' as used in a database table.
  30. 30th November 1975State the difference between lossy and lossless compression.