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Daily Practice · GCSE Computer Science

February 1984 5-a-day

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February 1984

29 sheets · 145 questions · GCSE

February 1984 compilationAll answers

Every sheet in February 1984

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 1984Given A = 1 and B = 1, state the value of A AND B.
  2. 2nd February 1984Convert the denary number 39 to an 8-bit binary number, showing your working.
  3. 3rd February 1984Define a peer-to-peer network.
  4. 4th February 1984Describe what syntax highlighting is and how it helps a programmer.
  5. 5th February 1984Convert the denary number 5 to a 4-bit binary number.
  6. 6th February 1984A CPU has a clock speed of 4.0 GHz. Calculate how many clock cycles it completes in 2 seconds.
  7. 7th February 1984A 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.
  8. 8th February 1984Trace this algorithm with data = [4, 9, 2, 9, 7] and state the final output. total = 0; count = 0; for i = 0 to 4: if data[i] > 5 then total = total + data[i] and count = count + 1; next i; print(total, count).
  9. 9th February 1984A mono sound clip has a sample rate of 4000 Hz and lasts 2 seconds. Calculate the total number of samples taken.
  10. 10th February 1984State the type of program that is typically stored in ROM.
  11. 11th February 1984State one reason a small business might choose to use open source software instead of proprietary (closed source) software.
  12. 12th February 1984A FOR loop runs: total = 0, FOR i = 1 TO 4, total = total + i, NEXT i. State the value of total after the loop finishes.
  13. 13th February 1984Give one specific way this code could be refined without changing what it does: a = 5, b = 3, c = a + b, PRINT c
  14. 14th February 1984State the typical maximum capacity of a single-layer DVD.
  15. 15th February 1984Explain the role of TCP when a large file is downloaded.
  16. 16th February 1984State what is meant by a syntax error.
  17. 17th February 1984A 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.
  18. 18th February 1984What type of utility software reorganises files on a hard disk so fragmented parts are stored closer together?
  19. 19th February 1984Calculate the maximum number of comparisons required by a binary search on a sorted list of 512 items.
  20. 20th February 1984Given P = 0 and Q = 1, state the value of P OR Q.
  21. 21st February 1984Convert the hexadecimal number FF to an 8-bit binary number.
  22. 22nd February 1984A 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.
  23. 23rd February 1984Give one advantage and one disadvantage of using a compiler.
  24. 24th February 1984Convert the 4-bit binary number 1101 to denary.
  25. 25th February 1984Two 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.
  26. 26th February 1984State why an organisation might employ penetration testers to test its network.
  27. 27th February 1984Write a loop in pseudocode that outputs every element of a 1D array named names of length 6.
  28. 28th February 1984State one example of a file format that commonly uses lossy compression.
  29. 29th February 1984State how many bits are in one byte, and how many bytes are in one kibibyte (KiB).