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Daily Practice · GCSE Computer Science

April 1986 5-a-day

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April 1986

30 sheets · 150 questions · GCSE

April 1986 compilationAll answers

Every sheet in April 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 April 1986Given x = 5 and y = 8, state whether x < y AND x > 0 evaluates to True or False.
  2. 2nd April 1986State the correct order of the three operations used to read data from a text file.
  3. 3rd April 1986Give one reason why RAM on its own is not enough, and a computer also needs secondary storage.
  4. 4th April 1986State the layer that IP operates in, and describe its job.
  5. 5th April 1986A password field requires between 6 and 12 characters. State two boundary data values that should be used to test this field.
  6. 6th April 1986A 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.
  7. 7th April 1986State one function carried out by the operating system of a computer.
  8. 8th April 1986In computational thinking, what is meant by the term 'decomposition'?
  9. 9th April 1986Given A = 1 and B = 1, state the value of A AND B.
  10. 10th April 1986Convert the denary number 200 to hexadecimal, showing your working.
  11. 11th April 1986Define a peer-to-peer network.
  12. 12th April 1986Describe what syntax highlighting is and how it helps a programmer.
  13. 13th April 1986Convert the denary number 5 to a 4-bit binary number.
  14. 14th April 1986A CPU has a clock speed of 4.0 GHz. Calculate how many clock cycles it completes in 2 seconds.
  15. 15th April 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.
  16. 16th April 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).
  17. 17th April 1986A mono sound clip has a sample rate of 4000 Hz and lasts 2 seconds. Calculate the total number of samples taken.
  18. 18th April 1986State the type of program that is typically stored in ROM.
  19. 19th April 1986State one reason a small business might choose to use open source software instead of proprietary (closed source) software.
  20. 20th April 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.
  21. 21st April 1986State the pseudocode operator commonly used to join (concatenate) two strings, then show how it joins 'Rev' and 'ision' to produce 'Revision'.
  22. 22nd April 1986State the typical maximum capacity of a single-layer DVD.
  23. 23rd April 1986Explain the role of TCP when a large file is downloaded.
  24. 24th April 1986State what is meant by a syntax error.
  25. 25th April 1986Define the term 'primary key' as used in a database table.
  26. 26th April 1986What type of utility software reorganises files on a hard disk so fragmented parts are stored closer together?
  27. 27th April 1986Calculate the maximum number of comparisons required by a binary search on a sorted list of 512 items.
  28. 28th April 1986Given P = 0 and Q = 1, state the value of P OR Q.
  29. 29th April 1986Convert the 8-bit binary number 10110100 directly to hexadecimal by splitting it into nibbles.
  30. 30th April 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.