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Daily Practice · GCSE Computer Science

March 1971 5-a-day

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March 1971

31 sheets · 155 questions · GCSE

March 1971 compilationAll answers

Every sheet in March 1971

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 1971Evaluate the expression 23 DIV 4.
  2. 2nd March 1971A 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.
  3. 3rd March 1971A 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.
  4. 4th March 1971Name the four layers of the TCP/IP model in order from the one closest to the user.
  5. 5th March 1971A 'quantity' field on a website must only accept whole numbers from 1 to 10. Which validation check identifies that 15 has been entered?
  6. 6th March 1971A table called bookings has fields bookingId, customerName and eventDate. Write an SQL statement that deletes the booking with bookingId 45.
  7. 7th March 1971A row of 8 pixels is WWWBBBWW. Use run-length encoding to encode this row as pairs of (colour, run length).
  8. 8th March 1971An 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.
  9. 9th March 1971Complete: NOT 0 = ?
  10. 10th March 1971Convert the denary number 39 to an 8-bit binary number, showing your working.
  11. 11th March 1971State what LAN stands for.
  12. 12th March 1971A program compiles and runs but always outputs an average that is too small. State the type of error and explain why the translator did not report it.
  13. 13th March 1971An 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.
  14. 14th March 1971Which CPU register holds the address of the next instruction to be fetched?
  15. 15th March 1971Distinguish between the network security threats known as phishing and pharming.
  16. 16th March 1971An array named temps holds 12 values. State the index of the first item and the index of the last item.
  17. 17th March 1971A row of pixels is encoded using run-length encoding as: 3W 4B 3W. State the original row of pixels it represents.
  18. 18th March 1971A photo file is 3.5 MB in size. Calculate its size in kilobytes (KB). Use 1 MB = 1000 KB.
  19. 19th March 1971A 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.
  20. 20th March 1971State the most appropriate data type for storing a person's shoe size if only whole sizes (e.g. 7, 8, 9) are allowed.
  21. 21st March 1971Give one specific way this code could be refined without changing what it does: a = 5, b = 3, c = a + b, PRINT c
  22. 22nd March 1971Give one example of an optical secondary storage device.
  23. 23rd March 1971State the difference between HTTP and HTTPS, and give one situation where HTTPS is essential.
  24. 24th March 1971State the term used for realistic data that a program would be expected to handle during normal use.
  25. 25th March 1971A 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.
  26. 26th March 1971State the difference between lossy and lossless compression.
  27. 27th March 1971State the condition that must be met before a binary search can be used on an array.
  28. 28th March 1971A 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.
  29. 29th March 1971Convert the hexadecimal number FF to an 8-bit binary number.
  30. 30th March 1971Which piece of network hardware connects a LAN to another network such as the internet, directing data packets based on IP address?
  31. 31st March 1971State why a program written in a high level language must be translated.