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Daily Practice · GCSE Computer Science

March 1961 5-a-day

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March 1961

31 sheets · 155 questions · GCSE

March 1961 compilationAll answers

Every sheet in March 1961

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

  1. 1st March 1961Trace 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).
  2. 2nd March 1961Define the term 'pixel'.
  3. 3rd March 1961Order these from fastest access speed to slowest: RAM, cache, registers, secondary storage.
  4. 4th March 1961Which piece of UK legislation makes it a criminal offence to gain unauthorised access to a computer system?
  5. 5th March 1961Evaluate the expression 23 DIV 4.
  6. 6th March 1961A 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.
  7. 7th March 1961A 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.
  8. 8th March 1961Explain the role of TCP when a large file is downloaded.
  9. 9th March 1961A 'quantity' field on a website must only accept whole numbers from 1 to 10. Which validation check identifies that 15 has been entered?
  10. 10th March 1961A table called bookings has fields bookingId, customerName and eventDate. Write an SQL statement that deletes the booking with bookingId 45.
  11. 11th March 1961A row of 8 pixels is WWWBBBWW. Use run-length encoding to encode this row as pairs of (colour, run length).
  12. 12th March 1961An 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.
  13. 13th March 1961Complete: NOT 0 = ?
  14. 14th March 1961Convert the denary number 39 to an 8-bit binary number, showing your working.
  15. 15th March 1961State what LAN stands for.
  16. 16th March 1961Give one advantage and one disadvantage of using a compiler.
  17. 17th March 1961An 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.
  18. 18th March 1961Which CPU register holds the address of the next instruction to be fetched?
  19. 19th March 1961Distinguish between the network security threats known as phishing and pharming.
  20. 20th March 1961Write a loop in pseudocode that outputs every element of a 1D array named names of length 6.
  21. 21st March 1961A row of pixels is encoded using run-length encoding as: 3W 4B 3W. State the original row of pixels it represents.
  22. 22nd March 1961A photo file is 3.5 MB in size. Calculate its size in kilobytes (KB). Use 1 MB = 1000 KB.
  23. 23rd March 1961A 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.
  24. 24th March 1961State the most appropriate data type for storing a person's shoe size if only whole sizes (e.g. 7, 8, 9) are allowed.
  25. 25th March 1961Give one specific way this code could be refined without changing what it does: a = 5, b = 3, c = a + b, PRINT c
  26. 26th March 1961Give one example of an optical secondary storage device.
  27. 27th March 1961A 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?
  28. 28th March 1961State the term used for realistic data that a program would be expected to handle during normal use.
  29. 29th March 1961A 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.
  30. 30th March 1961State the difference between lossy and lossless compression.
  31. 31st March 1961State the condition that must be met before a binary search can be used on an array.