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Daily Practice · GCSE Computer Science

May 2006 - GCSE Computer Science 5-a-day

Every GCSE Computer Science sheet published in May 2006, with answers. Systems, data representation, networks, algorithms and programming.

← Today's GCSE Computer Science sheet

May 2006

31 sheets · 155 questions · GCSE

May 2006 compilationAll answers

Every sheet in May 2006

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

  1. 1st May 2006A 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.
  2. 2nd May 2006Order these units of data from smallest to largest: megabyte, byte, gigabyte, kilobyte.
  3. 3rd May 2006Explain the role of TCP when a large file is downloaded.
  4. 4th May 2006Give one example of erroneous test data for a field that only accepts whole numbers from 1 to 10.
  5. 5th May 2006A 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;
  6. 6th May 2006Each 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.
  7. 7th May 2006Which flowchart symbol shape is used to represent a decision point (e.g. a yes/no branch)?
  8. 8th May 2006State the two values a Boolean data type can hold.
  9. 9th May 2006Convert the 8-bit binary number 01011010 to denary.
  10. 10th May 2006Calculate the number of cables needed to connect 8 computers in a full mesh topology, where every computer connects directly to every other computer.
  11. 11th May 2006Give one advantage and one disadvantage of using a compiler.
  12. 12th May 2006Convert the hexadecimal number 1A to denary.
  13. 13th May 2006Convert the denary number 156 to an 8 bit binary number.
  14. 14th May 2006Which type of malware can replicate itself and spread across a network without attaching to another program or needing a user to run it?
  15. 15th May 2006Write a loop in pseudocode that outputs every element of a 1D array named names of length 6.
  16. 16th May 2006An image uses a colour depth of 2 bits per pixel. Calculate the maximum number of different colours it can represent.
  17. 17th May 2006A 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.
  18. 18th May 2006Describe two negative consequences of throwing away old computer hardware instead of recycling it.
  19. 19th May 2006Write a function called isEven that takes one integer parameter, num, and returns True if num is even and False otherwise.
  20. 20th May 2006Write 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.
  21. 21st May 2006A 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.
  22. 22nd May 2006A user reads the same email on a phone and a tablet, and deleting it on one deletes it on the other. Which protocol is in use and why?
  23. 23rd May 2006Explain why iterative testing, carried out throughout development, tends to make errors cheaper to fix than relying only on final testing.
  24. 24th May 2006State what a foreign key is used for.
  25. 25th May 2006Define the term 'interrupt' as used to describe a signal received by a CPU.
  26. 26th May 2006An array called items contains [12, 45, 7, 30, 19] at indices 0 to 4. Describe how a linear search would locate the value 30, stating the number of comparisons needed.
  27. 27th May 2006Evaluate X = NOT A AND B when A = 0 and B = 1.
  28. 28th May 2006A pseudocode algorithm is: count <- 0, x <- 10, WHILE x > 0, count <- count + 1, x <- x - 3, ENDWHILE, OUTPUT count. Complete a trace table for x and count, laid out as x | count, then state the value output.
  29. 29th May 2006Give one advantage of a star topology compared with a mesh topology.
  30. 30th May 2006Name the translator used for assembly language and describe how it differs from a compiler.
  31. 31st May 2006Add the 8-bit binary numbers 00101101 and 00010011, giving your answer as an 8-bit binary number.