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Daily Practice · GCSE Computer Science

October 1988 5-a-day

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October 1988

31 sheets · 155 questions · GCSE

October 1988 compilationAll answers

Every sheet in October 1988

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

  1. 1st October 1988Give one reason why RAM on its own is not enough, and a computer also needs secondary storage.
  2. 2nd October 1988Give two reasons why network communication is divided into layers.
  3. 3rd October 1988A password field requires between 6 and 12 characters. State two boundary data values that should be used to test this field.
  4. 4th October 1988A table called products has fields productId, name, price and stock. Write an SQL statement that changes the price of the product with productId 7 to 15.99.
  5. 5th October 1988State one function carried out by the operating system of a computer.
  6. 6th October 1988In computational thinking, what is meant by the term 'decomposition'?
  7. 7th October 1988Given A = 1 and B = 1, state the value of A AND B.
  8. 8th October 1988Convert the denary number 200 to hexadecimal, showing your working.
  9. 9th October 1988Define a peer-to-peer network.
  10. 10th October 1988Explain why an interpreter is often preferred while a program is being written.
  11. 11th October 1988Convert the denary number 5 to a 4-bit binary number.
  12. 12th October 1988A CPU has a clock speed of 4.0 GHz. Calculate how many clock cycles it completes in 2 seconds.
  13. 13th October 1988A 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.
  14. 14th October 1988A 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.
  15. 15th October 1988A mono sound clip has a sample rate of 4000 Hz and lasts 2 seconds. Calculate the total number of samples taken.
  16. 16th October 1988State the type of program that is typically stored in ROM.
  17. 17th October 1988State one reason a small business might choose to use open source software instead of proprietary (closed source) software.
  18. 18th October 1988A FOR loop runs: total = 0, FOR i = 1 TO 4, total = total + i, NEXT i. State the value of total after the loop finishes.
  19. 19th October 1988State the pseudocode operator commonly used to join (concatenate) two strings, then show how it joins 'Rev' and 'ision' to produce 'Revision'.
  20. 20th October 1988State the typical maximum capacity of a single-layer DVD.
  21. 21st October 1988State the layer that IP operates in, and describe its job.
  22. 22nd October 1988State what is meant by a syntax error.
  23. 23rd October 1988Define the term 'primary key' as used in a database table.
  24. 24th October 1988What type of utility software reorganises files on a hard disk so fragmented parts are stored closer together?
  25. 25th October 1988Calculate the maximum number of comparisons required by a binary search on a sorted list of 512 items.
  26. 26th October 1988Given P = 0 and Q = 1, state the value of P OR Q.
  27. 27th October 1988Convert the 8-bit binary number 10110100 directly to hexadecimal by splitting it into nibbles.
  28. 28th October 1988A 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.
  29. 29th October 1988Describe what syntax highlighting is and how it helps a programmer.
  30. 30th October 1988Convert the 4-bit binary number 1101 to denary.
  31. 31st October 1988Two 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.