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Daily Practice · GCSE Computer Science

January 1966 5-a-day

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January 1966

31 sheets · 155 questions · GCSE

January 1966 compilationAll answers

Every sheet in January 1966

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

  1. 1st January 1966Explain what happens if a program tries to read index 5 of an array declared with 5 elements.
  2. 2nd January 1966A mono sound clip has a sample rate of 4000 Hz and lasts 2 seconds. Calculate the total number of samples taken.
  3. 3rd January 1966State the type of program that is typically stored in ROM.
  4. 4th January 1966State one reason a small business might choose to use open source software instead of proprietary (closed source) software.
  5. 5th January 1966A FOR loop runs: total = 0, FOR i = 1 TO 4, total = total + i, NEXT i. State the value of total after the loop finishes.
  6. 6th January 1966Write 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.
  7. 7th January 1966State the typical maximum capacity of a single-layer DVD.
  8. 8th January 1966Define the term protocol.
  9. 9th January 1966State what is meant by a syntax error.
  10. 10th January 1966State what a foreign key is used for.
  11. 11th January 1966What type of utility software reorganises files on a hard disk so fragmented parts are stored closer together?
  12. 12th January 1966Calculate the maximum number of comparisons required by a binary search on a sorted list of 512 items.
  13. 13th January 1966Given P = 0 and Q = 1, state the value of P OR Q.
  14. 14th January 1966A 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.
  15. 15th January 1966A 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.
  16. 16th January 1966Explain the purpose of a breakpoint.
  17. 17th January 1966Convert the 4-bit binary number 1101 to denary.
  18. 18th January 1966Two 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.
  19. 19th January 1966State why an organisation might employ penetration testers to test its network.
  20. 20th January 1966Explain why a running maximum should be initialised to the first element of the array rather than to 0.
  21. 21st January 1966State one example of a file format that commonly uses lossy compression.
  22. 22nd January 1966State how many bits are in one byte, and how many bytes are in one kibibyte (KiB).
  23. 23rd January 1966State whether the source code of proprietary (closed source) software is normally available for the public to view.
  24. 24th January 1966Write one line of pseudocode that converts the string stored in heightInput into a real number and stores it in a variable called height.
  25. 25th January 1966State the value returned by LENGTH(word) if word stores the string 'Computer'.
  26. 26th January 1966Order these units of data from smallest to largest: megabyte, byte, gigabyte, kilobyte.
  27. 27th January 1966Name the four layers of the TCP/IP model in order from the one closest to the user.
  28. 28th January 1966Give one example of erroneous test data for a field that only accepts whole numbers from 1 to 10.
  29. 29th January 1966A 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.
  30. 30th January 1966Each 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.
  31. 31st January 1966Which flowchart symbol shape is used to represent a decision point (e.g. a yes/no branch)?