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Daily Practice · GCSE Computer Science

October 1974 5-a-day

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October 1974

31 sheets · 155 questions · GCSE

October 1974 compilationAll answers

Every sheet in October 1974

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 1974State one reason a small business might choose to use open source software instead of proprietary (closed source) software.
  2. 2nd October 1974A FOR loop runs: total = 0, FOR i = 1 TO 4, total = total + i, NEXT i. State the value of total after the loop finishes.
  3. 3rd October 1974Write the pseudocode header and body for a function called isAdult that takes one integer parameter called age and returns True if age is 18 or over.
  4. 4th October 1974State the typical maximum capacity of a single-layer DVD.
  5. 5th October 1974Define the term protocol.
  6. 6th October 1974State what is meant by a syntax error.
  7. 7th October 1974State what a foreign key is used for.
  8. 8th October 1974What type of utility software reorganises files on a hard disk so fragmented parts are stored closer together?
  9. 9th October 1974Calculate the maximum number of comparisons required by a binary search on a sorted list of 512 items.
  10. 10th October 1974Given P = 0 and Q = 1, state the value of P OR Q.
  11. 11th October 1974A pseudocode algorithm is: count <- 0, x <- 10, WHILE x > 0, count <- count + 1, x <- x - 3, ENDWHILE, OUTPUT count. Complete a trace table for x and count, laid out as x | count, then state the value output.
  12. 12th October 1974A 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.
  13. 13th October 1974Explain the purpose of a breakpoint.
  14. 14th October 1974Convert the 4-bit binary number 1101 to denary.
  15. 15th October 1974Two 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.
  16. 16th October 1974State why an organisation might employ penetration testers to test its network.
  17. 17th October 1974Explain why a running maximum should be initialised to the first element of the array rather than to 0.
  18. 18th October 1974State one example of a file format that commonly uses lossy compression.
  19. 19th October 1974State how many bits are in one byte, and how many bytes are in one kibibyte (KiB).
  20. 20th October 1974State whether the source code of proprietary (closed source) software is normally available for the public to view.
  21. 21st October 1974Write one line of pseudocode that converts the string stored in heightInput into a real number and stores it in a variable called height.
  22. 22nd October 1974State the value returned by LENGTH(word) if word stores the string 'Computer'.
  23. 23rd October 1974Order these units of data from smallest to largest: megabyte, byte, gigabyte, kilobyte.
  24. 24th October 1974Name the four layers of the TCP/IP model in order from the one closest to the user.
  25. 25th October 1974Give one example of erroneous test data for a field that only accepts whole numbers from 1 to 10.
  26. 26th October 1974A 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.
  27. 27th October 1974Each pair from the previous question is stored using 2 bytes. Calculate the compression ratio achieved, given the uncompressed row (1 byte per pixel) uses 8 bytes.
  28. 28th October 1974Which flowchart symbol shape is used to represent a decision point (e.g. a yes/no branch)?
  29. 29th October 1974State the two values a Boolean data type can hold.
  30. 30th October 1974State how many different values can be represented using 5 bits, and explain your reasoning.
  31. 31st October 1974Calculate the number of cables needed to connect 8 computers in a full mesh topology, where every computer connects directly to every other computer.