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Daily Practice · GCSE Computer Science

February 1962 5-a-day

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February 1962

28 sheets · 140 questions · GCSE

February 1962 compilationAll answers

Every sheet in February 1962

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

  1. 1st February 1962Give one advantage of a star topology compared with a mesh topology.
  2. 2nd February 1962A 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.
  3. 3rd February 1962Add the 8-bit binary numbers 00101101 and 00010011, giving your answer as an 8-bit binary number.
  4. 4th February 1962State the three stages of the fetch-decode-execute cycle in the order they occur.
  5. 5th February 1962State one weakness of a simple shift cipher compared to modern encryption methods used on networks.
  6. 6th February 1962An array named temps holds 12 values. State the index of the first item and the index of the last item.
  7. 7th February 1962Define the term 'pixel'.
  8. 8th February 1962Order these from fastest access speed to slowest: RAM, cache, registers, secondary storage.
  9. 9th February 1962Which piece of UK legislation makes it a criminal offence to gain unauthorised access to a computer system?
  10. 10th February 1962Evaluate the expression 23 DIV 4.
  11. 11th February 1962State the correct order of the three operations used to read data from a text file.
  12. 12th February 1962A 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.
  13. 13th February 1962State the difference between HTTP and HTTPS, and give one situation where HTTPS is essential.
  14. 14th February 1962A 'quantity' field on a website must only accept whole numbers from 1 to 10. Which validation check identifies that 15 has been entered?
  15. 15th February 1962A table called products has fields productId, name, price and stock. Write an SQL statement that changes the price of the product with productId 7 to 15.99.
  16. 16th February 1962A row of 8 pixels is WWWBBBWW. Use run-length encoding to encode this row as pairs of (colour, run length).
  17. 17th February 1962An 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.
  18. 18th February 1962Complete: NOT 0 = ?
  19. 19th February 1962Convert the denary number 200 to hexadecimal, showing your working.
  20. 20th February 1962State what LAN stands for.
  21. 21st February 1962State why a program written in a high level language must be translated.
  22. 22nd February 1962An 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.
  23. 23rd February 1962Which CPU register holds the address of the next instruction to be fetched?
  24. 24th February 1962Distinguish between the network security threats known as phishing and pharming.
  25. 25th February 1962Describe what a nested loop does when it processes a 2D array.
  26. 26th February 1962A row of pixels is encoded using run-length encoding as: 3W 4B 3W. State the original row of pixels it represents.
  27. 27th February 1962A photo file is 3.5 MB in size. Calculate its size in kilobytes (KB). Use 1 MB = 1000 KB.
  28. 28th February 1962A 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.