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Daily Practice · GCSE Computer Science

May 1988 5-a-day

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May 1988

31 sheets · 155 questions · GCSE

May 1988 compilationAll answers

Every sheet in May 1988

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 1988State the correct order of the three operations used to read data from a text file.
  2. 2nd May 1988A 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.
  3. 3rd May 1988State the difference between HTTP and HTTPS, and give one situation where HTTPS is essential.
  4. 4th May 1988A 'quantity' field on a website must only accept whole numbers from 1 to 10. Which validation check identifies that 15 has been entered?
  5. 5th May 1988A 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.
  6. 6th May 1988A row of 8 pixels is WWWBBBWW. Use run-length encoding to encode this row as pairs of (colour, run length).
  7. 7th May 1988An 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.
  8. 8th May 1988Complete: NOT 0 = ?
  9. 9th May 1988Convert the denary number 200 to hexadecimal, showing your working.
  10. 10th May 1988State what LAN stands for.
  11. 11th May 1988State why a program written in a high level language must be translated.
  12. 12th May 1988An 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.
  13. 13th May 1988Which CPU register holds the address of the next instruction to be fetched?
  14. 14th May 1988Distinguish between the network security threats known as phishing and pharming.
  15. 15th May 1988Describe what a nested loop does when it processes a 2D array.
  16. 16th May 1988A row of pixels is encoded using run-length encoding as: 3W 4B 3W. State the original row of pixels it represents.
  17. 17th May 1988A photo file is 3.5 MB in size. Calculate its size in kilobytes (KB). Use 1 MB = 1000 KB.
  18. 18th May 1988A 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.
  19. 19th May 1988State the most appropriate data type for storing a person's shoe size if only whole sizes (e.g. 7, 8, 9) are allowed.
  20. 20th May 1988State the pseudocode operator commonly used to join (concatenate) two strings, then show how it joins 'Rev' and 'ision' to produce 'Revision'.
  21. 21st May 1988Give one example of an optical secondary storage device.
  22. 22nd May 1988Give two reasons why network communication is divided into layers.
  23. 23rd May 1988State the term used for realistic data that a program would be expected to handle during normal use.
  24. 24th May 1988Define the term 'primary key' as used in a database table.
  25. 25th May 1988State the difference between lossy and lossless compression.
  26. 26th May 1988State the condition that must be met before a binary search can be used on an array.
  27. 27th May 1988A logic circuit has inputs C and D. C feeds into a NOT gate; the output of the NOT gate and D feed into an OR gate, giving output Y. Write the Boolean expression for Y and state its value when C = 1 and D = 0.
  28. 28th May 1988Convert the 8-bit binary number 10110100 directly to hexadecimal by splitting it into nibbles.
  29. 29th May 1988Which piece of network hardware connects a LAN to another network such as the internet, directing data packets based on IP address?
  30. 30th May 1988Explain why an interpreter is often preferred while a program is being written.
  31. 31st May 1988Convert the denary number 45 to hexadecimal.