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Daily Practice · GCSE Computer Science

June 1987 5-a-day

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June 1987

30 sheets · 150 questions · GCSE

June 1987 compilationAll answers

Every sheet in June 1987

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

  1. 1st June 1987Complete: NOT 0 = ?
  2. 2nd June 1987Convert the denary number 39 to an 8-bit binary number, showing your working.
  3. 3rd June 1987State what LAN stands for.
  4. 4th June 1987Give one advantage and one disadvantage of using a compiler.
  5. 5th June 1987An 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.
  6. 6th June 1987Which CPU register holds the address of the next instruction to be fetched?
  7. 7th June 1987Distinguish between the network security threats known as phishing and pharming.
  8. 8th June 1987Write a loop in pseudocode that outputs every element of a 1D array named names of length 6.
  9. 9th June 1987A row of pixels is encoded using run-length encoding as: 3W 4B 3W. State the original row of pixels it represents.
  10. 10th June 1987A photo file is 3.5 MB in size. Calculate its size in kilobytes (KB). Use 1 MB = 1000 KB.
  11. 11th June 1987A 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.
  12. 12th June 1987State the most appropriate data type for storing a person's shoe size if only whole sizes (e.g. 7, 8, 9) are allowed.
  13. 13th June 1987Give one specific way this code could be refined without changing what it does: a = 5, b = 3, c = a + b, PRINT c
  14. 14th June 1987Give one example of an optical secondary storage device.
  15. 15th June 1987A 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?
  16. 16th June 1987State the term used for realistic data that a program would be expected to handle during normal use.
  17. 17th June 1987A table called members has fields memberId, firstName, lastName and joinYear. Write an SQL statement that adds a new record with memberId 12, firstName 'Priya', lastName 'Shah' and joinYear 2026.
  18. 18th June 1987State the difference between lossy and lossless compression.
  19. 19th June 1987State the condition that must be met before a binary search can be used on an array.
  20. 20th June 1987A 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.
  21. 21st June 1987Convert the hexadecimal number FF to an 8-bit binary number.
  22. 22nd June 1987Which piece of network hardware connects a LAN to another network such as the internet, directing data packets based on IP address?
  23. 23rd June 1987Name the translator used for assembly language and describe how it differs from a compiler.
  24. 24th June 1987Convert the denary number 45 to hexadecimal.
  25. 25th June 1987What does the acronym CPU stand for?
  26. 26th June 1987State what the term malware means.
  27. 27th June 1987Explain what happens if a program tries to read index 5 of an array declared with 5 elements.
  28. 28th June 1987An uncompressed file is 6000 KB. After lossless compression it is 1500 KB. Calculate the compression ratio in the form n:1 (original size : compressed size).
  29. 29th June 1987Which of RAM and ROM is volatile, meaning its contents are lost when the power is removed?
  30. 30th June 1987Which piece of UK legislation controls how organisations must store and use people's personal data?