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Daily Practice · GCSE Computer Science

May 1954 5-a-day

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May 1954

31 sheets · 155 questions · GCSE

May 1954 compilationAll answers

Every sheet in May 1954

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 1954Complete: NOT 0 = ?
  2. 2nd May 1954Convert the 8-bit binary number 01011010 to denary.
  3. 3rd May 1954State what LAN stands for.
  4. 4th May 1954Name the translator used for assembly language and describe how it differs from a compiler.
  5. 5th May 1954An 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.
  6. 6th May 1954Which CPU register holds the address of the next instruction to be fetched?
  7. 7th May 1954Distinguish between the network security threats known as phishing and pharming.
  8. 8th May 1954Explain what happens if a program tries to read index 5 of an array declared with 5 elements.
  9. 9th May 1954A row of pixels is encoded using run-length encoding as: 3W 4B 3W. State the original row of pixels it represents.
  10. 10th May 1954A photo file is 3.5 MB in size. Calculate its size in kilobytes (KB). Use 1 MB = 1000 KB.
  11. 11th May 1954A 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.
  12. 12th May 1954State the most appropriate data type for storing a person's shoe size if only whole sizes (e.g. 7, 8, 9) are allowed.
  13. 13th May 1954Write 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.
  14. 14th May 1954Give one example of an optical secondary storage device.
  15. 15th May 1954Define the term protocol.
  16. 16th May 1954State the term used for realistic data that a program would be expected to handle during normal use.
  17. 17th May 1954State what a foreign key is used for.
  18. 18th May 1954State the difference between lossy and lossless compression.
  19. 19th May 1954State the condition that must be met before a binary search can be used on an array.
  20. 20th May 1954A 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.
  21. 21st May 1954A 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.
  22. 22nd May 1954Which piece of network hardware connects a LAN to another network such as the internet, directing data packets based on IP address?
  23. 23rd May 1954Explain the purpose of a breakpoint.
  24. 24th May 1954Convert the denary number 45 to hexadecimal.
  25. 25th May 1954What does the acronym CPU stand for?
  26. 26th May 1954State what the term malware means.
  27. 27th May 1954Explain why a running maximum should be initialised to the first element of the array rather than to 0.
  28. 28th May 1954An 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).
  29. 29th May 1954Which of RAM and ROM is volatile, meaning its contents are lost when the power is removed?
  30. 30th May 1954Which piece of UK legislation controls how organisations must store and use people's personal data?
  31. 31st May 1954Given x = 5 and y = 8, state whether x < y AND x > 0 evaluates to True or False.