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Daily Practice · GCSE Computer Science

February 1998 - GCSE Computer Science 5-a-day

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February 1998

28 sheets · 140 questions · GCSE

February 1998 compilationAll answers

Every sheet in February 1998

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 1998Explain the purpose of a breakpoint.
  2. 2nd February 1998Convert the denary number 45 to hexadecimal.
  3. 3rd February 1998What does the acronym CPU stand for?
  4. 4th February 1998State what the term malware means.
  5. 5th February 1998Explain why a running maximum should be initialised to the first element of the array rather than to 0.
  6. 6th February 1998An 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).
  7. 7th February 1998Which of RAM and ROM is volatile, meaning its contents are lost when the power is removed?
  8. 8th February 1998Which piece of UK legislation controls how organisations must store and use people's personal data?
  9. 9th February 1998Given x = 5 and y = 8, state whether x < y AND x > 0 evaluates to True or False.
  10. 10th February 1998State the value returned by LENGTH(word) if word stores the string 'Computer'.
  11. 11th February 1998Give one reason why RAM on its own is not enough, and a computer also needs secondary storage.
  12. 12th February 1998Name the four layers of the TCP/IP model in order from the one closest to the user.
  13. 13th February 1998A password field requires between 6 and 12 characters. State two boundary data values that should be used to test this field.
  14. 14th February 1998A table called books has fields bookId, title, authorId and copiesAvailable. Write an SQL statement that selects the title of every book with more than 2 copies available.
  15. 15th February 1998State one function carried out by the operating system of a computer.
  16. 16th February 1998In computational thinking, what is meant by the term 'decomposition'?
  17. 17th February 1998Given A = 1 and B = 1, state the value of A AND B.
  18. 18th February 1998State how many different values can be represented using 5 bits, and explain your reasoning.
  19. 19th February 1998Define a peer-to-peer network.
  20. 20th February 1998A 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.
  21. 21st February 1998Convert the denary number 5 to a 4-bit binary number.
  22. 22nd February 1998A CPU has a clock speed of 4.0 GHz. Calculate how many clock cycles it completes in 2 seconds.
  23. 23rd February 1998A 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.
  24. 24th February 1998An array named temps holds 12 values. State the index of the first item and the index of the last item.
  25. 25th February 1998A mono sound clip has a sample rate of 4000 Hz and lasts 2 seconds. Calculate the total number of samples taken.
  26. 26th February 1998State the type of program that is typically stored in ROM.
  27. 27th February 1998State one reason a small business might choose to use open source software instead of proprietary (closed source) software.
  28. 28th February 1998A FOR loop runs: total = 0, FOR i = 1 TO 4, total = total + i, NEXT i. State the value of total after the loop finishes.