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Daily Practice · GCSE Computer Science

January 1976 5-a-day

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January 1976

31 sheets · 155 questions · GCSE

January 1976 compilationAll answers

Every sheet in January 1976

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 1976A FOR loop runs: total = 0, FOR i = 1 TO 4, total = total + i, NEXT i. State the value of total after the loop finishes.
  2. 2nd January 1976Write 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.
  3. 3rd January 1976State the typical maximum capacity of a single-layer DVD.
  4. 4th January 1976Give two reasons why network communication is divided into layers.
  5. 5th January 1976State what is meant by a syntax error.
  6. 6th January 1976State what a foreign key is used for.
  7. 7th January 1976What type of utility software reorganises files on a hard disk so fragmented parts are stored closer together?
  8. 8th January 1976Calculate the maximum number of comparisons required by a binary search on a sorted list of 512 items.
  9. 9th January 1976Given P = 0 and Q = 1, state the value of P OR Q.
  10. 10th January 1976A 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.
  11. 11th January 1976A 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.
  12. 12th January 1976Explain why an interpreter is often preferred while a program is being written.
  13. 13th January 1976Convert the 4-bit binary number 1101 to denary.
  14. 14th January 1976Two 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.
  15. 15th January 1976State why an organisation might employ penetration testers to test its network.
  16. 16th January 1976A 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.
  17. 17th January 1976State one example of a file format that commonly uses lossy compression.
  18. 18th January 1976State how many bits are in one byte, and how many bytes are in one kibibyte (KiB).
  19. 19th January 1976State whether the source code of proprietary (closed source) software is normally available for the public to view.
  20. 20th January 1976Write one line of pseudocode that converts the string stored in heightInput into a real number and stores it in a variable called height.
  21. 21st January 1976State the value returned by LENGTH(word) if word stores the string 'Computer'.
  22. 22nd January 1976Order these units of data from smallest to largest: megabyte, byte, gigabyte, kilobyte.
  23. 23rd January 1976State the layer that IP operates in, and describe its job.
  24. 24th January 1976Give one example of erroneous test data for a field that only accepts whole numbers from 1 to 10.
  25. 25th January 1976A 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.
  26. 26th January 1976Each 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.
  27. 27th January 1976Which flowchart symbol shape is used to represent a decision point (e.g. a yes/no branch)?
  28. 28th January 1976State the two values a Boolean data type can hold.
  29. 29th January 1976State how many different values can be represented using 5 bits, and explain your reasoning.
  30. 30th January 1976Calculate the number of cables needed to connect 8 computers in a full mesh topology, where every computer connects directly to every other computer.
  31. 31st January 1976Describe what syntax highlighting is and how it helps a programmer.