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Daily Practice · GCSE Computer Science

August 1962 5-a-day

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August 1962

31 sheets · 155 questions · GCSE

August 1962 compilationAll answers

Every sheet in August 1962

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

  1. 1st August 1962State the pseudocode operator commonly used to join (concatenate) two strings, then show how it joins 'Rev' and 'ision' to produce 'Revision'.
  2. 2nd August 1962State the typical maximum capacity of a single-layer DVD.
  3. 3rd August 1962State the layer that IP operates in, and describe its job.
  4. 4th August 1962State what is meant by a syntax error.
  5. 5th August 1962Define the term 'primary key' as used in a database table.
  6. 6th August 1962What type of utility software reorganises files on a hard disk so fragmented parts are stored closer together?
  7. 7th August 1962Calculate the maximum number of comparisons required by a binary search on a sorted list of 512 items.
  8. 8th August 1962Given P = 0 and Q = 1, state the value of P OR Q.
  9. 9th August 1962Convert the 8-bit binary number 10110100 directly to hexadecimal by splitting it into nibbles.
  10. 10th August 1962A 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.
  11. 11th August 1962Describe what syntax highlighting is and how it helps a programmer.
  12. 12th August 1962Convert the 4-bit binary number 1101 to denary.
  13. 13th August 1962Two 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.
  14. 14th August 1962State why an organisation might employ penetration testers to test its network.
  15. 15th August 1962Trace 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).
  16. 16th August 1962State one example of a file format that commonly uses lossy compression.
  17. 17th August 1962State how many bits are in one byte, and how many bytes are in one kibibyte (KiB).
  18. 18th August 1962State whether the source code of proprietary (closed source) software is normally available for the public to view.
  19. 19th August 1962Write one line of pseudocode that converts the string stored in heightInput into a real number and stores it in a variable called height.
  20. 20th August 1962A 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.
  21. 21st August 1962Order these units of data from smallest to largest: megabyte, byte, gigabyte, kilobyte.
  22. 22nd August 1962Explain the role of TCP when a large file is downloaded.
  23. 23rd August 1962Give one example of erroneous test data for a field that only accepts whole numbers from 1 to 10.
  24. 24th August 1962A 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;
  25. 25th August 1962Each 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.
  26. 26th August 1962Which flowchart symbol shape is used to represent a decision point (e.g. a yes/no branch)?
  27. 27th August 1962State the two values a Boolean data type can hold.
  28. 28th August 1962Convert the 8-bit binary number 01011010 to denary.
  29. 29th August 1962Calculate the number of cables needed to connect 8 computers in a full mesh topology, where every computer connects directly to every other computer.
  30. 30th August 1962Give one advantage and one disadvantage of using a compiler.
  31. 31st August 1962Convert the hexadecimal number 1A to denary.