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Daily Practice · GCSE Computer Science

May 2022 - GCSE Computer Science 5-a-day

Every GCSE Computer Science sheet published in May 2022, with answers. Systems, data representation, networks, algorithms and programming.

← Today's GCSE Computer Science sheet

May 2022

31 sheets · 155 questions · GCSE

May 2022 compilationAll answers

Every sheet in May 2022

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

  1. 1st May 2022Add the 8-bit binary numbers 00101101 and 00010011, giving your answer as an 8-bit binary number.
  2. 2nd May 2022State the three stages of the fetch-decode-execute cycle in the order they occur.
  3. 3rd May 2022State one weakness of a simple shift cipher compared to modern encryption methods used on networks.
  4. 4th May 2022Trace this algorithm with data = [4, 9, 2, 9, 7] and state the final output. total = 0; count = 0; for i = 0 to 4: if data[i] > 5 then total = total + data[i] and count = count + 1; next i; print(total, count).
  5. 5th May 2022Define the term 'pixel'.
  6. 6th May 2022Order these from fastest access speed to slowest: RAM, cache, registers, secondary storage.
  7. 7th May 2022Which piece of UK legislation makes it a criminal offence to gain unauthorised access to a computer system?
  8. 8th May 2022Evaluate the expression 23 DIV 4.
  9. 9th May 2022A programmer wants any syntax error in their program to be reported before the program starts running at all. State whether a compiler or an interpreter behaves this way, and explain why.
  10. 10th May 2022A 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.
  11. 11th May 2022Explain the role of TCP when a large file is downloaded.
  12. 12th May 2022A 'quantity' field on a website must only accept whole numbers from 1 to 10. Which validation check identifies that 15 has been entered?
  13. 13th May 2022A table called bookings has fields bookingId, customerName and eventDate. Write an SQL statement that deletes the booking with bookingId 45.
  14. 14th May 2022A row of 8 pixels is WWWBBBWW. Use run-length encoding to encode this row as pairs of (colour, run length).
  15. 15th May 2022An 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.
  16. 16th May 2022Complete: NOT 0 = ?
  17. 17th May 2022Convert the denary number 39 to an 8-bit binary number, showing your working.
  18. 18th May 2022State what LAN stands for.
  19. 19th May 2022Give one advantage and one disadvantage of using a compiler.
  20. 20th May 2022An 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.
  21. 21st May 2022Which CPU register holds the address of the next instruction to be fetched?
  22. 22nd May 2022Distinguish between the network security threats known as phishing and pharming.
  23. 23rd May 2022Write a loop in pseudocode that outputs every element of a 1D array named names of length 6.
  24. 24th May 2022A row of pixels is encoded using run-length encoding as: 3W 4B 3W. State the original row of pixels it represents.
  25. 25th May 2022A photo file is 3.5 MB in size. Calculate its size in kilobytes (KB). Use 1 MB = 1000 KB.
  26. 26th May 2022A 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.
  27. 27th May 2022State the most appropriate data type for storing a person's shoe size if only whole sizes (e.g. 7, 8, 9) are allowed.
  28. 28th May 2022Give one specific way this code could be refined without changing what it does: a = 5, b = 3, c = a + b, PRINT c
  29. 29th May 2022Give one example of an optical secondary storage device.
  30. 30th May 2022A user reads the same email on a phone and a tablet, and deleting it on one deletes it on the other. Which protocol is in use and why?
  31. 31st May 2022State the term used for realistic data that a program would be expected to handle during normal use.