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Daily Practice · GCSE Computer Science

June 1977 5-a-day

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June 1977

30 sheets · 150 questions · GCSE

June 1977 compilationAll answers

Every sheet in June 1977

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 1977A 'quantity' field on a website must only accept whole numbers from 1 to 10. Which validation check identifies that 15 has been entered?
  2. 2nd June 1977A table called bookings has fields bookingId, customerName and eventDate. Write an SQL statement that deletes the booking with bookingId 45.
  3. 3rd June 1977A row of 8 pixels is WWWBBBWW. Use run-length encoding to encode this row as pairs of (colour, run length).
  4. 4th June 1977An 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.
  5. 5th June 1977Complete: NOT 0 = ?
  6. 6th June 1977Convert the denary number 39 to an 8-bit binary number, showing your working.
  7. 7th June 1977State what LAN stands for.
  8. 8th June 1977State why a program written in a high level language must be translated.
  9. 9th June 1977An 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.
  10. 10th June 1977Which CPU register holds the address of the next instruction to be fetched?
  11. 11th June 1977Distinguish between the network security threats known as phishing and pharming.
  12. 12th June 1977Describe what a nested loop does when it processes a 2D array.
  13. 13th June 1977A row of pixels is encoded using run-length encoding as: 3W 4B 3W. State the original row of pixels it represents.
  14. 14th June 1977A photo file is 3.5 MB in size. Calculate its size in kilobytes (KB). Use 1 MB = 1000 KB.
  15. 15th June 1977A 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.
  16. 16th June 1977State the most appropriate data type for storing a person's shoe size if only whole sizes (e.g. 7, 8, 9) are allowed.
  17. 17th June 1977Give one specific way this code could be refined without changing what it does: a = 5, b = 3, c = a + b, PRINT c
  18. 18th June 1977Give one example of an optical secondary storage device.
  19. 19th June 1977Give two reasons why network communication is divided into layers.
  20. 20th June 1977State the term used for realistic data that a program would be expected to handle during normal use.
  21. 21st June 1977A 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.
  22. 22nd June 1977State the difference between lossy and lossless compression.
  23. 23rd June 1977State the condition that must be met before a binary search can be used on an array.
  24. 24th June 1977A 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.
  25. 25th June 1977Convert the hexadecimal number FF to an 8-bit binary number.
  26. 26th June 1977Which piece of network hardware connects a LAN to another network such as the internet, directing data packets based on IP address?
  27. 27th June 1977Explain why an interpreter is often preferred while a program is being written.
  28. 28th June 1977Convert the denary number 45 to hexadecimal.
  29. 29th June 1977What does the acronym CPU stand for?
  30. 30th June 1977State what the term malware means.