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Daily Practice · GCSE Computer Science

August 1986 5-a-day

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August 1986

31 sheets · 155 questions · GCSE

August 1986 compilationAll answers

Every sheet in August 1986

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 1986Given A = 1 and B = 1, state the value of A AND B.
  2. 2nd August 1986Convert the denary number 39 to an 8-bit binary number, showing your working.
  3. 3rd August 1986Define a peer-to-peer network.
  4. 4th August 1986Explain why an interpreter is often preferred while a program is being written.
  5. 5th August 1986Convert the denary number 5 to a 4-bit binary number.
  6. 6th August 1986A CPU has a clock speed of 4.0 GHz. Calculate how many clock cycles it completes in 2 seconds.
  7. 7th August 1986A 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 August 1986A 2D array grid is declared as grid[4][6]. State how many rows and columns it has and how many elements it holds in total.
  9. 9th August 1986A mono sound clip has a sample rate of 4000 Hz and lasts 2 seconds. Calculate the total number of samples taken.
  10. 10th August 1986State the type of program that is typically stored in ROM.
  11. 11th August 1986State one reason a small business might choose to use open source software instead of proprietary (closed source) software.
  12. 12th August 1986A 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 August 1986Give one specific way this code could be refined without changing what it does: a = 5, b = 3, c = a + b, PRINT c
  14. 14th August 1986State the typical maximum capacity of a single-layer DVD.
  15. 15th August 1986State the layer that IP operates in, and describe its job.
  16. 16th August 1986State what is meant by a syntax error.
  17. 17th August 1986A 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 August 1986What type of utility software reorganises files on a hard disk so fragmented parts are stored closer together?
  19. 19th August 1986Calculate the maximum number of comparisons required by a binary search on a sorted list of 512 items.
  20. 20th August 1986Given P = 0 and Q = 1, state the value of P OR Q.
  21. 21st August 1986Convert the hexadecimal number FF to an 8-bit binary number.
  22. 22nd August 1986A 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 August 1986Describe what syntax highlighting is and how it helps a programmer.
  24. 24th August 1986Convert the 4-bit binary number 1101 to denary.
  25. 25th August 1986Two 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 August 1986State why an organisation might employ penetration testers to test its network.
  27. 27th August 1986Trace 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).
  28. 28th August 1986State one example of a file format that commonly uses lossy compression.
  29. 29th August 1986State how many bits are in one byte, and how many bytes are in one kibibyte (KiB).
  30. 30th August 1986State whether the source code of proprietary (closed source) software is normally available for the public to view.
  31. 31st August 1986Write one line of pseudocode that converts the string stored in heightInput into a real number and stores it in a variable called height.