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Daily Practice · GCSE Computer Science

May 1985 5-a-day

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May 1985

31 sheets · 155 questions · GCSE

May 1985 compilationAll answers

Every sheet in May 1985

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

  1. 1st May 1985In computational thinking, what is meant by the term 'decomposition'?
  2. 2nd May 1985Given A = 1 and B = 1, state the value of A AND B.
  3. 3rd May 1985Convert the denary number 39 to an 8-bit binary number, showing your working.
  4. 4th May 1985Define a peer-to-peer network.
  5. 5th May 1985Explain the purpose of a breakpoint.
  6. 6th May 1985Convert the denary number 5 to a 4-bit binary number.
  7. 7th May 1985A CPU has a clock speed of 4.0 GHz. Calculate how many clock cycles it completes in 2 seconds.
  8. 8th May 1985A 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.
  9. 9th May 1985Explain why a running maximum should be initialised to the first element of the array rather than to 0.
  10. 10th May 1985A mono sound clip has a sample rate of 4000 Hz and lasts 2 seconds. Calculate the total number of samples taken.
  11. 11th May 1985State the type of program that is typically stored in ROM.
  12. 12th May 1985State one reason a small business might choose to use open source software instead of proprietary (closed source) software.
  13. 13th May 1985A FOR loop runs: total = 0, FOR i = 1 TO 4, total = total + i, NEXT i. State the value of total after the loop finishes.
  14. 14th May 1985Give one specific way this code could be refined without changing what it does: a = 5, b = 3, c = a + b, PRINT c
  15. 15th May 1985State the typical maximum capacity of a single-layer DVD.
  16. 16th May 1985Name the four layers of the TCP/IP model in order from the one closest to the user.
  17. 17th May 1985State what is meant by a syntax error.
  18. 18th May 1985A table called members has fields memberId, firstName, lastName and joinYear. Write an SQL statement that adds a new record with memberId 12, firstName 'Priya', lastName 'Shah' and joinYear 2026.
  19. 19th May 1985What type of utility software reorganises files on a hard disk so fragmented parts are stored closer together?
  20. 20th May 1985Calculate the maximum number of comparisons required by a binary search on a sorted list of 512 items.
  21. 21st May 1985Given P = 0 and Q = 1, state the value of P OR Q.
  22. 22nd May 1985Convert the hexadecimal number FF to an 8-bit binary number.
  23. 23rd May 1985A 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.
  24. 24th May 1985A 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.
  25. 25th May 1985Convert the 4-bit binary number 1101 to denary.
  26. 26th May 1985Two 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.
  27. 27th May 1985State why an organisation might employ penetration testers to test its network.
  28. 28th May 1985An array named temps holds 12 values. State the index of the first item and the index of the last item.
  29. 29th May 1985State one example of a file format that commonly uses lossy compression.
  30. 30th May 1985State how many bits are in one byte, and how many bytes are in one kibibyte (KiB).
  31. 31st May 1985State whether the source code of proprietary (closed source) software is normally available for the public to view.