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Daily Practice · GCSE Computer Science

December 1964 5-a-day

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December 1964

31 sheets · 155 questions · GCSE

December 1964 compilationAll answers

Every sheet in December 1964

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

  1. 1st December 1964Which piece of UK legislation makes it a criminal offence to gain unauthorised access to a computer system?
  2. 2nd December 1964Evaluate the expression 23 DIV 4.
  3. 3rd December 1964A 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.
  4. 4th December 1964A 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.
  5. 5th December 1964Define the term protocol.
  6. 6th December 1964A 'quantity' field on a website must only accept whole numbers from 1 to 10. Which validation check identifies that 15 has been entered?
  7. 7th December 1964A table called bookings has fields bookingId, customerName and eventDate. Write an SQL statement that deletes the booking with bookingId 45.
  8. 8th December 1964A row of 8 pixels is WWWBBBWW. Use run-length encoding to encode this row as pairs of (colour, run length).
  9. 9th December 1964An 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.
  10. 10th December 1964Complete: NOT 0 = ?
  11. 11th December 1964Convert the denary number 39 to an 8-bit binary number, showing your working.
  12. 12th December 1964State what LAN stands for.
  13. 13th December 1964Explain the purpose of a breakpoint.
  14. 14th December 1964An 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.
  15. 15th December 1964Which CPU register holds the address of the next instruction to be fetched?
  16. 16th December 1964Distinguish between the network security threats known as phishing and pharming.
  17. 17th December 1964Explain why a running maximum should be initialised to the first element of the array rather than to 0.
  18. 18th December 1964A row of pixels is encoded using run-length encoding as: 3W 4B 3W. State the original row of pixels it represents.
  19. 19th December 1964A photo file is 3.5 MB in size. Calculate its size in kilobytes (KB). Use 1 MB = 1000 KB.
  20. 20th December 1964A 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.
  21. 21st December 1964State the most appropriate data type for storing a person's shoe size if only whole sizes (e.g. 7, 8, 9) are allowed.
  22. 22nd December 1964Give one specific way this code could be refined without changing what it does: a = 5, b = 3, c = a + b, PRINT c
  23. 23rd December 1964Give one example of an optical secondary storage device.
  24. 24th December 1964Name the four layers of the TCP/IP model in order from the one closest to the user.
  25. 25th December 1964State the term used for realistic data that a program would be expected to handle during normal use.
  26. 26th December 1964A 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.
  27. 27th December 1964State the difference between lossy and lossless compression.
  28. 28th December 1964State the condition that must be met before a binary search can be used on an array.
  29. 29th December 1964A 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.
  30. 30th December 1964Convert the hexadecimal number FF to an 8-bit binary number.
  31. 31st December 1964Which piece of network hardware connects a LAN to another network such as the internet, directing data packets based on IP address?