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Daily Practice · GCSE Computer Science

November 1987 5-a-day

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November 1987

30 sheets · 150 questions · GCSE

November 1987 compilationAll answers

Every sheet in November 1987

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

  1. 1st November 1987Convert the denary number 39 to an 8-bit binary number, showing your working.
  2. 2nd November 1987Define a peer-to-peer network.
  3. 3rd November 1987Name the translator used for assembly language and describe how it differs from a compiler.
  4. 4th November 1987Convert the denary number 5 to a 4-bit binary number.
  5. 5th November 1987A CPU has a clock speed of 4.0 GHz. Calculate how many clock cycles it completes in 2 seconds.
  6. 6th November 1987A 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.
  7. 7th November 1987Explain what happens if a program tries to read index 5 of an array declared with 5 elements.
  8. 8th November 1987A mono sound clip has a sample rate of 4000 Hz and lasts 2 seconds. Calculate the total number of samples taken.
  9. 9th November 1987State the type of program that is typically stored in ROM.
  10. 10th November 1987State one reason a small business might choose to use open source software instead of proprietary (closed source) software.
  11. 11th November 1987A FOR loop runs: total = 0, FOR i = 1 TO 4, total = total + i, NEXT i. State the value of total after the loop finishes.
  12. 12th November 1987Give one specific way this code could be refined without changing what it does: a = 5, b = 3, c = a + b, PRINT c
  13. 13th November 1987State the typical maximum capacity of a single-layer DVD.
  14. 14th November 1987Define the term protocol.
  15. 15th November 1987State what is meant by a syntax error.
  16. 16th November 1987A 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.
  17. 17th November 1987What type of utility software reorganises files on a hard disk so fragmented parts are stored closer together?
  18. 18th November 1987Calculate the maximum number of comparisons required by a binary search on a sorted list of 512 items.
  19. 19th November 1987Given P = 0 and Q = 1, state the value of P OR Q.
  20. 20th November 1987Convert the hexadecimal number FF to an 8-bit binary number.
  21. 21st November 1987A 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.
  22. 22nd November 1987Explain the purpose of a breakpoint.
  23. 23rd November 1987Convert the 4-bit binary number 1101 to denary.
  24. 24th November 1987Two 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.
  25. 25th November 1987State why an organisation might employ penetration testers to test its network.
  26. 26th November 1987Explain why a running maximum should be initialised to the first element of the array rather than to 0.
  27. 27th November 1987State one example of a file format that commonly uses lossy compression.
  28. 28th November 1987State how many bits are in one byte, and how many bytes are in one kibibyte (KiB).
  29. 29th November 1987State whether the source code of proprietary (closed source) software is normally available for the public to view.
  30. 30th November 1987Write one line of pseudocode that converts the string stored in heightInput into a real number and stores it in a variable called height.