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Daily Practice · GCSE Computer Science

August 1981 5-a-day

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August 1981

31 sheets · 155 questions · GCSE

August 1981 compilationAll answers

Every sheet in August 1981

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 1981State one function carried out by the operating system of a computer.
  2. 2nd August 1981In computational thinking, what is meant by the term 'decomposition'?
  3. 3rd August 1981Given A = 1 and B = 1, state the value of A AND B.
  4. 4th August 1981Convert the denary number 39 to an 8-bit binary number, showing your working.
  5. 5th August 1981Define a peer-to-peer network.
  6. 6th August 1981Give one advantage and one disadvantage of using a compiler.
  7. 7th August 1981Convert the denary number 5 to a 4-bit binary number.
  8. 8th August 1981A CPU has a clock speed of 4.0 GHz. Calculate how many clock cycles it completes in 2 seconds.
  9. 9th August 1981A 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.
  10. 10th August 1981Write a loop in pseudocode that outputs every element of a 1D array named names of length 6.
  11. 11th August 1981A mono sound clip has a sample rate of 4000 Hz and lasts 2 seconds. Calculate the total number of samples taken.
  12. 12th August 1981State the type of program that is typically stored in ROM.
  13. 13th August 1981State one reason a small business might choose to use open source software instead of proprietary (closed source) software.
  14. 14th August 1981A FOR loop runs: total = 0, FOR i = 1 TO 4, total = total + i, NEXT i. State the value of total after the loop finishes.
  15. 15th August 1981Give one specific way this code could be refined without changing what it does: a = 5, b = 3, c = a + b, PRINT c
  16. 16th August 1981State the typical maximum capacity of a single-layer DVD.
  17. 17th August 1981A user reads the same email on a phone and a tablet, and deleting it on one deletes it on the other. Which protocol is in use and why?
  18. 18th August 1981State what is meant by a syntax error.
  19. 19th August 1981A 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.
  20. 20th August 1981What type of utility software reorganises files on a hard disk so fragmented parts are stored closer together?
  21. 21st August 1981Calculate the maximum number of comparisons required by a binary search on a sorted list of 512 items.
  22. 22nd August 1981Given P = 0 and Q = 1, state the value of P OR Q.
  23. 23rd August 1981Convert the hexadecimal number FF to an 8-bit binary number.
  24. 24th August 1981A 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.
  25. 25th August 1981Name the translator used for assembly language and describe how it differs from a compiler.
  26. 26th August 1981Convert the 4-bit binary number 1101 to denary.
  27. 27th August 1981Two 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.
  28. 28th August 1981State why an organisation might employ penetration testers to test its network.
  29. 29th August 1981Explain what happens if a program tries to read index 5 of an array declared with 5 elements.
  30. 30th August 1981State one example of a file format that commonly uses lossy compression.
  31. 31st August 1981State how many bits are in one byte, and how many bytes are in one kibibyte (KiB).