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Daily Practice · GCSE Computer Science

November 1958 5-a-day

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November 1958

30 sheets · 150 questions · GCSE

November 1958 compilationAll answers

Every sheet in November 1958

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

  1. 1st November 1958A 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 November 1958State the pseudocode operator commonly used to join (concatenate) two strings, then show how it joins 'Rev' and 'ision' to produce 'Revision'.
  3. 3rd November 1958State the typical maximum capacity of a single-layer DVD.
  4. 4th November 1958State the difference between HTTP and HTTPS, and give one situation where HTTPS is essential.
  5. 5th November 1958State what is meant by a syntax error.
  6. 6th November 1958Define the term 'primary key' as used in a database table.
  7. 7th November 1958What type of utility software reorganises files on a hard disk so fragmented parts are stored closer together?
  8. 8th November 1958Calculate the maximum number of comparisons required by a binary search on a sorted list of 512 items.
  9. 9th November 1958Given P = 0 and Q = 1, state the value of P OR Q.
  10. 10th November 1958Convert the 8-bit binary number 10110100 directly to hexadecimal by splitting it into nibbles.
  11. 11th November 1958A 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 November 1958State why a program written in a high level language must be translated.
  13. 13th November 1958Convert the 4-bit binary number 1101 to denary.
  14. 14th November 1958Two 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 November 1958State why an organisation might employ penetration testers to test its network.
  16. 16th November 1958Describe what a nested loop does when it processes a 2D array.
  17. 17th November 1958State one example of a file format that commonly uses lossy compression.
  18. 18th November 1958State how many bits are in one byte, and how many bytes are in one kibibyte (KiB).
  19. 19th November 1958State whether the source code of proprietary (closed source) software is normally available for the public to view.
  20. 20th November 1958Write 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 November 1958A function is defined as: FUNCTION addTax(price) RETURN price x 1.2 ENDFUNCTION. Another line of code runs: total <- addTax(20) + addTax(30). Trace both function calls and state the final value of total.
  22. 22nd November 1958Order these units of data from smallest to largest: megabyte, byte, gigabyte, kilobyte.
  23. 23rd November 1958Give two reasons why network communication is divided into layers.
  24. 24th November 1958Give one example of erroneous test data for a field that only accepts whole numbers from 1 to 10.
  25. 25th November 1958A table called staff has fields staffId, name, department and salary, storing these records: staffId | name | department | salary, 1 | Ben | Sales | 24000, 2 | Chloe | IT | 31000, 3 | Dan | Sales | 27000. State which staffId(s) would be returned by: SELECT staffId FROM staff WHERE department = 'Sales' AND salary > 25000;
  26. 26th November 1958Each 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 November 1958Which flowchart symbol shape is used to represent a decision point (e.g. a yes/no branch)?
  28. 28th November 1958State the two values a Boolean data type can hold.
  29. 29th November 1958Convert the 8-bit binary number 01011010 to denary.
  30. 30th November 1958Calculate the number of cables needed to connect 8 computers in a full mesh topology, where every computer connects directly to every other computer.