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Daily Practice · GCSE Computer Science

May 1959 5-a-day

← Today's GCSE Computer Science sheet

May 1959

31 sheets · 155 questions · GCSE

May 1959 compilationAll answers

Every sheet in May 1959

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 1959State what LAN stands for.
  2. 2nd May 1959Describe what syntax highlighting is and how it helps a programmer.
  3. 3rd May 1959An 8-bit register stores the value 01100000 (denary 96). State the resulting 8-bit binary value after a left shift by 1 place, and state whether an overflow occurs.
  4. 4th May 1959Which CPU register holds the address of the next instruction to be fetched?
  5. 5th May 1959Distinguish between the network security threats known as phishing and pharming.
  6. 6th May 1959Trace 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).
  7. 7th May 1959A row of pixels is encoded using run-length encoding as: 3W 4B 3W. State the original row of pixels it represents.
  8. 8th May 1959A photo file is 3.5 MB in size. Calculate its size in kilobytes (KB). Use 1 MB = 1000 KB.
  9. 9th May 1959A streaming company records which shows each user watches and uses this to recommend similar shows. Explain one ethical concern this could raise, even if the company only uses the data to improve recommendations.
  10. 10th May 1959State the most appropriate data type for storing a person's shoe size if only whole sizes (e.g. 7, 8, 9) are allowed.
  11. 11th May 1959Write 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.
  12. 12th May 1959Give one example of an optical secondary storage device.
  13. 13th May 1959Explain the role of TCP when a large file is downloaded.
  14. 14th May 1959State the term used for realistic data that a program would be expected to handle during normal use.
  15. 15th May 1959State what a foreign key is used for.
  16. 16th May 1959State the difference between lossy and lossless compression.
  17. 17th May 1959State the condition that must be met before a binary search can be used on an array.
  18. 18th May 1959A logic circuit has inputs C and D. C feeds into a NOT gate; the output of the NOT gate and D feed into an OR gate, giving output Y. Write the Boolean expression for Y and state its value when C = 1 and D = 0.
  19. 19th May 1959A 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.
  20. 20th May 1959Which piece of network hardware connects a LAN to another network such as the internet, directing data packets based on IP address?
  21. 21st May 1959Give one advantage and one disadvantage of using a compiler.
  22. 22nd May 1959Convert the denary number 45 to hexadecimal.
  23. 23rd May 1959What does the acronym CPU stand for?
  24. 24th May 1959State what the term malware means.
  25. 25th May 1959Write a loop in pseudocode that outputs every element of a 1D array named names of length 6.
  26. 26th May 1959An uncompressed file is 6000 KB. After lossless compression it is 1500 KB. Calculate the compression ratio in the form n:1 (original size : compressed size).
  27. 27th May 1959Which of RAM and ROM is volatile, meaning its contents are lost when the power is removed?
  28. 28th May 1959Which piece of UK legislation controls how organisations must store and use people's personal data?
  29. 29th May 1959Given x = 5 and y = 8, state whether x < y AND x > 0 evaluates to True or False.
  30. 30th May 1959State the value returned by LENGTH(word) if word stores the string 'Computer'.
  31. 31st May 1959Give one reason why RAM on its own is not enough, and a computer also needs secondary storage.