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Daily Practice · GCSE Computer Science

November 1983 5-a-day

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November 1983

30 sheets · 150 questions · GCSE

November 1983 compilationAll answers

Every sheet in November 1983

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 1983Name the translator used for assembly language and describe how it differs from a compiler.
  2. 2nd November 1983Convert the 4-bit binary number 1101 to denary.
  3. 3rd November 1983Two 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.
  4. 4th November 1983State why an organisation might employ penetration testers to test its network.
  5. 5th November 1983Explain what happens if a program tries to read index 5 of an array declared with 5 elements.
  6. 6th November 1983State one example of a file format that commonly uses lossy compression.
  7. 7th November 1983State how many bits are in one byte, and how many bytes are in one kibibyte (KiB).
  8. 8th November 1983State whether the source code of proprietary (closed source) software is normally available for the public to view.
  9. 9th November 1983Write one line of pseudocode that converts the string stored in heightInput into a real number and stores it in a variable called height.
  10. 10th November 1983A 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.
  11. 11th November 1983Order these units of data from smallest to largest: megabyte, byte, gigabyte, kilobyte.
  12. 12th November 1983Define the term protocol.
  13. 13th November 1983Give one example of erroneous test data for a field that only accepts whole numbers from 1 to 10.
  14. 14th November 1983A 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;
  15. 15th November 1983Each 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.
  16. 16th November 1983Which flowchart symbol shape is used to represent a decision point (e.g. a yes/no branch)?
  17. 17th November 1983State the two values a Boolean data type can hold.
  18. 18th November 1983Convert the 8-bit binary number 01011010 to denary.
  19. 19th November 1983Calculate the number of cables needed to connect 8 computers in a full mesh topology, where every computer connects directly to every other computer.
  20. 20th November 1983Explain the purpose of a breakpoint.
  21. 21st November 1983Convert the hexadecimal number 1A to denary.
  22. 22nd November 1983Convert the denary number 156 to an 8 bit binary number.
  23. 23rd November 1983Which type of malware can replicate itself and spread across a network without attaching to another program or needing a user to run it?
  24. 24th November 1983Explain why a running maximum should be initialised to the first element of the array rather than to 0.
  25. 25th November 1983An image uses a colour depth of 2 bits per pixel. Calculate the maximum number of different colours it can represent.
  26. 26th November 1983A CPU's cache has a hit rate of 80%. During a task the CPU makes 4000 requests for data. Calculate the number of cache hits and cache misses.
  27. 27th November 1983Describe two negative consequences of throwing away old computer hardware instead of recycling it.
  28. 28th November 1983Write a function called isEven that takes one integer parameter, num, and returns True if num is even and False otherwise.
  29. 29th November 1983Write 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.
  30. 30th November 1983A company backs up its files onto magnetic tape cartridges, each with a capacity of 3 TB. The company needs to back up 20 TB of data. Calculate the minimum number of cartridges needed.