Revision Library
/Subjects/Computer Science/Daily Practice
Daily Practice · GCSE Computer Science

February 1965 5-a-day

← Today's GCSE Computer Science sheet

February 1965

28 sheets · 140 questions · GCSE

February 1965 compilationAll answers

Every sheet in February 1965

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

  1. 1st February 1965State what is meant by a syntax error.
  2. 2nd February 1965Define the term 'primary key' as used in a database table.
  3. 3rd February 1965What type of utility software reorganises files on a hard disk so fragmented parts are stored closer together?
  4. 4th February 1965Calculate the maximum number of comparisons required by a binary search on a sorted list of 512 items.
  5. 5th February 1965Given P = 0 and Q = 1, state the value of P OR Q.
  6. 6th February 1965Convert the 8-bit binary number 10110100 directly to hexadecimal by splitting it into nibbles.
  7. 7th February 1965A 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.
  8. 8th February 1965Explain why an interpreter is often preferred while a program is being written.
  9. 9th February 1965Convert the 4-bit binary number 1101 to denary.
  10. 10th February 1965Two 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.
  11. 11th February 1965State why an organisation might employ penetration testers to test its network.
  12. 12th February 1965A 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.
  13. 13th February 1965State one example of a file format that commonly uses lossy compression.
  14. 14th February 1965State how many bits are in one byte, and how many bytes are in one kibibyte (KiB).
  15. 15th February 1965State whether the source code of proprietary (closed source) software is normally available for the public to view.
  16. 16th February 1965Write one line of pseudocode that converts the string stored in heightInput into a real number and stores it in a variable called height.
  17. 17th February 1965A 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.
  18. 18th February 1965Order these units of data from smallest to largest: megabyte, byte, gigabyte, kilobyte.
  19. 19th February 1965State the layer that IP operates in, and describe its job.
  20. 20th February 1965Give one example of erroneous test data for a field that only accepts whole numbers from 1 to 10.
  21. 21st February 1965A 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;
  22. 22nd February 1965Each 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.
  23. 23rd February 1965Which flowchart symbol shape is used to represent a decision point (e.g. a yes/no branch)?
  24. 24th February 1965State the two values a Boolean data type can hold.
  25. 25th February 1965Convert the 8-bit binary number 01011010 to denary.
  26. 26th February 1965Calculate the number of cables needed to connect 8 computers in a full mesh topology, where every computer connects directly to every other computer.
  27. 27th February 1965Describe what syntax highlighting is and how it helps a programmer.
  28. 28th February 1965Convert the hexadecimal number 1A to denary.