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Daily Practice · GCSE Computer Science

October 1998 - GCSE Computer Science 5-a-day

Every GCSE Computer Science sheet published in October 1998, with answers. Systems, data representation, networks, algorithms and programming.

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October 1998

31 sheets · 155 questions · GCSE

October 1998 compilationAll answers

Every sheet in October 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 October 1998State one function carried out by the operating system of a computer.
  2. 2nd October 1998In computational thinking, what is meant by the term 'decomposition'?
  3. 3rd October 1998Given A = 1 and B = 1, state the value of A AND B.
  4. 4th October 1998Convert the denary number 200 to hexadecimal, showing your working.
  5. 5th October 1998Define a peer-to-peer network.
  6. 6th October 1998Name the translator used for assembly language and describe how it differs from a compiler.
  7. 7th October 1998Convert the denary number 5 to a 4-bit binary number.
  8. 8th October 1998A CPU has a clock speed of 4.0 GHz. Calculate how many clock cycles it completes in 2 seconds.
  9. 9th October 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.
  10. 10th October 1998Explain what happens if a program tries to read index 5 of an array declared with 5 elements.
  11. 11th October 1998A mono sound clip has a sample rate of 4000 Hz and lasts 2 seconds. Calculate the total number of samples taken.
  12. 12th October 1998State the type of program that is typically stored in ROM.
  13. 13th October 1998State one reason a small business might choose to use open source software instead of proprietary (closed source) software.
  14. 14th October 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.
  15. 15th October 1998State the pseudocode operator commonly used to join (concatenate) two strings, then show how it joins 'Rev' and 'ision' to produce 'Revision'.
  16. 16th October 1998State the typical maximum capacity of a single-layer DVD.
  17. 17th October 1998Define the term protocol.
  18. 18th October 1998State what is meant by a syntax error.
  19. 19th October 1998Define the term 'primary key' as used in a database table.
  20. 20th October 1998What type of utility software reorganises files on a hard disk so fragmented parts are stored closer together?
  21. 21st October 1998Calculate the maximum number of comparisons required by a binary search on a sorted list of 512 items.
  22. 22nd October 1998Given P = 0 and Q = 1, state the value of P OR Q.
  23. 23rd October 1998Convert the 8-bit binary number 10110100 directly to hexadecimal by splitting it into nibbles.
  24. 24th October 1998A network administrator is connecting 10 computers in a server room. Calculate the number of cables needed for a full mesh topology, and state the number needed for a star topology with one central switch.
  25. 25th October 1998Explain the purpose of a breakpoint.
  26. 26th October 1998Convert the 4-bit binary number 1101 to denary.
  27. 27th October 1998Two CPUs are compared for a task optimised for multiple cores: CPU A has 2 cores at 4.2 GHz; CPU B has 6 cores at 3.0 GHz. Explain which CPU is likely to perform better for this task.
  28. 28th October 1998State why an organisation might employ penetration testers to test its network.
  29. 29th October 1998Explain why a running maximum should be initialised to the first element of the array rather than to 0.
  30. 30th October 1998State one example of a file format that commonly uses lossy compression.
  31. 31st October 1998State how many bits are in one byte, and how many bytes are in one kibibyte (KiB).