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Daily Practice · GCSE Computer Science

August 2025 - GCSE Computer Science 5-a-day

Every GCSE Computer Science sheet published in August 2025, with answers. Systems, data representation, networks, algorithms and programming.

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August 2025

31 sheets · 155 questions · GCSE

August 2025 compilationAll answers

Every sheet in August 2025

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

  1. 1st August 2025State the layer that IP operates in, and describe its job.
  2. 2nd August 2025A password field requires between 6 and 12 characters. State two boundary data values that should be used to test this field.
  3. 3rd August 2025A 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.
  4. 4th August 2025State one function carried out by the operating system of a computer.
  5. 5th August 2025In computational thinking, what is meant by the term 'decomposition'?
  6. 6th August 2025Given A = 1 and B = 1, state the value of A AND B.
  7. 7th August 2025State how many different values can be represented using 5 bits, and explain your reasoning.
  8. 8th August 2025Define a peer-to-peer network.
  9. 9th August 2025Describe what syntax highlighting is and how it helps a programmer.
  10. 10th August 2025Convert the denary number 5 to a 4-bit binary number.
  11. 11th August 2025A CPU has a clock speed of 4.0 GHz. Calculate how many clock cycles it completes in 2 seconds.
  12. 12th August 2025A 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.
  13. 13th August 2025Trace 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).
  14. 14th August 2025A mono sound clip has a sample rate of 4000 Hz and lasts 2 seconds. Calculate the total number of samples taken.
  15. 15th August 2025State the type of program that is typically stored in ROM.
  16. 16th August 2025State one reason a small business might choose to use open source software instead of proprietary (closed source) software.
  17. 17th August 2025A FOR loop runs: total = 0, FOR i = 1 TO 4, total = total + i, NEXT i. State the value of total after the loop finishes.
  18. 18th August 2025State the key difference between a procedure and a function.
  19. 19th August 2025State the typical maximum capacity of a single-layer DVD.
  20. 20th August 2025Explain the role of TCP when a large file is downloaded.
  21. 21st August 2025State what is meant by a syntax error.
  22. 22nd August 2025Give one advantage of a relational database over a flat-file database.
  23. 23rd August 2025What type of utility software reorganises files on a hard disk so fragmented parts are stored closer together?
  24. 24th August 2025Calculate the maximum number of comparisons required by a binary search on a sorted list of 512 items.
  25. 25th August 2025Given P = 0 and Q = 1, state the value of P OR Q.
  26. 26th August 2025Convert the hexadecimal number 3F to denary.
  27. 27th August 2025A 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.
  28. 28th August 2025Give one advantage and one disadvantage of using a compiler.
  29. 29th August 2025Convert the 4-bit binary number 1101 to denary.
  30. 30th August 2025Two 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.
  31. 31st August 2025State why an organisation might employ penetration testers to test its network.