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Daily Practice · GCSE Computer Science

June 1993 - GCSE Computer Science 5-a-day

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June 1993

30 sheets · 150 questions · GCSE

June 1993 compilationAll answers

Every sheet in June 1993

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

  1. 1st June 1993An array named temps holds 12 values. State the index of the first item and the index of the last item.
  2. 2nd June 1993An 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).
  3. 3rd June 1993Which of RAM and ROM is volatile, meaning its contents are lost when the power is removed?
  4. 4th June 1993Which piece of UK legislation controls how organisations must store and use people's personal data?
  5. 5th June 1993Given x = 5 and y = 8, state whether x < y AND x > 0 evaluates to True or False.
  6. 6th June 1993A 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.
  7. 7th June 1993Give one reason why RAM on its own is not enough, and a computer also needs secondary storage.
  8. 8th June 1993State the difference between HTTP and HTTPS, and give one situation where HTTPS is essential.
  9. 9th June 1993A password field requires between 6 and 12 characters. State two boundary data values that should be used to test this field.
  10. 10th June 1993A 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;
  11. 11th June 1993State one function carried out by the operating system of a computer.
  12. 12th June 1993In computational thinking, what is meant by the term 'decomposition'?
  13. 13th June 1993Given A = 1 and B = 1, state the value of A AND B.
  14. 14th June 1993Convert the 8-bit binary number 01011010 to denary.
  15. 15th June 1993Define a peer-to-peer network.
  16. 16th June 1993State why a program written in a high level language must be translated.
  17. 17th June 1993Convert the denary number 5 to a 4-bit binary number.
  18. 18th June 1993A CPU has a clock speed of 4.0 GHz. Calculate how many clock cycles it completes in 2 seconds.
  19. 19th June 1993A 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.
  20. 20th June 1993Describe what a nested loop does when it processes a 2D array.
  21. 21st June 1993A mono sound clip has a sample rate of 4000 Hz and lasts 2 seconds. Calculate the total number of samples taken.
  22. 22nd June 1993State the type of program that is typically stored in ROM.
  23. 23rd June 1993State one reason a small business might choose to use open source software instead of proprietary (closed source) software.
  24. 24th June 1993A FOR loop runs: total = 0, FOR i = 1 TO 4, total = total + i, NEXT i. State the value of total after the loop finishes.
  25. 25th June 1993Write 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.
  26. 26th June 1993State the typical maximum capacity of a single-layer DVD.
  27. 27th June 1993Give two reasons why network communication is divided into layers.
  28. 28th June 1993State what is meant by a syntax error.
  29. 29th June 1993State what a foreign key is used for.
  30. 30th June 1993What type of utility software reorganises files on a hard disk so fragmented parts are stored closer together?