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Daily Practice · GCSE Computer Science

March 1982 5-a-day

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March 1982

31 sheets · 155 questions · GCSE

March 1982 compilationAll answers

Every sheet in March 1982

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 1982Convert the 8-bit binary number 10110100 directly to hexadecimal by splitting it into nibbles.
  2. 2nd March 1982Which piece of network hardware connects a LAN to another network such as the internet, directing data packets based on IP address?
  3. 3rd March 1982State why a program written in a high level language must be translated.
  4. 4th March 1982Convert the denary number 45 to hexadecimal.
  5. 5th March 1982What does the acronym CPU stand for?
  6. 6th March 1982State what the term malware means.
  7. 7th March 1982Describe what a nested loop does when it processes a 2D array.
  8. 8th March 1982An uncompressed file is 6000 KB. After lossless compression it is 1500 KB. Calculate the compression ratio in the form n:1 (original size : compressed size).
  9. 9th March 1982Which of RAM and ROM is volatile, meaning its contents are lost when the power is removed?
  10. 10th March 1982Which piece of UK legislation controls how organisations must store and use people's personal data?
  11. 11th March 1982Given x = 5 and y = 8, state whether x < y AND x > 0 evaluates to True or False.
  12. 12th March 1982A function is defined as: FUNCTION addTax(price) RETURN price x 1.2 ENDFUNCTION. Another line of code runs: total <- addTax(20) + addTax(30). Trace both function calls and state the final value of total.
  13. 13th March 1982Give one reason why RAM on its own is not enough, and a computer also needs secondary storage.
  14. 14th March 1982Give two reasons why network communication is divided into layers.
  15. 15th March 1982A password field requires between 6 and 12 characters. State two boundary data values that should be used to test this field.
  16. 16th March 1982A table called staff has fields staffId, name, department and salary, storing these records: staffId | name | department | salary, 1 | Ben | Sales | 24000, 2 | Chloe | IT | 31000, 3 | Dan | Sales | 27000. State which staffId(s) would be returned by: SELECT staffId FROM staff WHERE department = 'Sales' AND salary > 25000;
  17. 17th March 1982State one function carried out by the operating system of a computer.
  18. 18th March 1982In computational thinking, what is meant by the term 'decomposition'?
  19. 19th March 1982Given A = 1 and B = 1, state the value of A AND B.
  20. 20th March 1982Convert the 8-bit binary number 01011010 to denary.
  21. 21st March 1982Define a peer-to-peer network.
  22. 22nd March 1982Explain why an interpreter is often preferred while a program is being written.
  23. 23rd March 1982Convert the denary number 5 to a 4-bit binary number.
  24. 24th March 1982A CPU has a clock speed of 4.0 GHz. Calculate how many clock cycles it completes in 2 seconds.
  25. 25th March 1982A simple cipher shifts every letter 2 places forward in the alphabet, wrapping around so Y becomes A and Z becomes B. Encrypt the plaintext CAT using this cipher.
  26. 26th March 1982A 2D array grid is declared as grid[4][6]. State how many rows and columns it has and how many elements it holds in total.
  27. 27th March 1982A mono sound clip has a sample rate of 4000 Hz and lasts 2 seconds. Calculate the total number of samples taken.
  28. 28th March 1982State the type of program that is typically stored in ROM.
  29. 29th March 1982State one reason a small business might choose to use open source software instead of proprietary (closed source) software.
  30. 30th March 1982A FOR loop runs: total = 0, FOR i = 1 TO 4, total = total + i, NEXT i. State the value of total after the loop finishes.
  31. 31st March 1982Write the pseudocode header and body for a function called isAdult that takes one integer parameter called age and returns True if age is 18 or over.