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Daily Practice · GCSE Computer Science

November 1953 5-a-day

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November 1953

30 sheets · 150 questions · GCSE

November 1953 compilationAll answers

Every sheet in November 1953

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 1953State the type of program that is typically stored in ROM.
  2. 2nd November 1953State one reason a small business might choose to use open source software instead of proprietary (closed source) software.
  3. 3rd November 1953A FOR loop runs: total = 0, FOR i = 1 TO 4, total = total + i, NEXT i. State the value of total after the loop finishes.
  4. 4th November 1953State the pseudocode operator commonly used to join (concatenate) two strings, then show how it joins 'Rev' and 'ision' to produce 'Revision'.
  5. 5th November 1953State the typical maximum capacity of a single-layer DVD.
  6. 6th November 1953State the layer that IP operates in, and describe its job.
  7. 7th November 1953State what is meant by a syntax error.
  8. 8th November 1953Define the term 'primary key' as used in a database table.
  9. 9th November 1953What type of utility software reorganises files on a hard disk so fragmented parts are stored closer together?
  10. 10th November 1953Calculate the maximum number of comparisons required by a binary search on a sorted list of 512 items.
  11. 11th November 1953Given P = 0 and Q = 1, state the value of P OR Q.
  12. 12th November 1953Convert the 8-bit binary number 10110100 directly to hexadecimal by splitting it into nibbles.
  13. 13th November 1953A 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.
  14. 14th November 1953Describe what syntax highlighting is and how it helps a programmer.
  15. 15th November 1953Convert the 4-bit binary number 1101 to denary.
  16. 16th November 1953Two 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.
  17. 17th November 1953State why an organisation might employ penetration testers to test its network.
  18. 18th November 1953Trace 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).
  19. 19th November 1953State one example of a file format that commonly uses lossy compression.
  20. 20th November 1953State how many bits are in one byte, and how many bytes are in one kibibyte (KiB).
  21. 21st November 1953State whether the source code of proprietary (closed source) software is normally available for the public to view.
  22. 22nd November 1953Write one line of pseudocode that converts the string stored in heightInput into a real number and stores it in a variable called height.
  23. 23rd November 1953A 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.
  24. 24th November 1953Order these units of data from smallest to largest: megabyte, byte, gigabyte, kilobyte.
  25. 25th November 1953Explain the role of TCP when a large file is downloaded.
  26. 26th November 1953Give one example of erroneous test data for a field that only accepts whole numbers from 1 to 10.
  27. 27th November 1953A 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;
  28. 28th November 1953Each 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.
  29. 29th November 1953Which flowchart symbol shape is used to represent a decision point (e.g. a yes/no branch)?
  30. 30th November 1953State the two values a Boolean data type can hold.