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Daily Practice · GCSE Computer Science

August 1975 5-a-day

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August 1975

31 sheets · 155 questions · GCSE

August 1975 compilationAll answers

Every sheet in August 1975

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

  1. 1st August 1975A 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.
  2. 2nd August 1975State the most appropriate data type for storing a person's shoe size if only whole sizes (e.g. 7, 8, 9) are allowed.
  3. 3rd August 1975Write 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.
  4. 4th August 1975Give one example of an optical secondary storage device.
  5. 5th August 1975State the difference between HTTP and HTTPS, and give one situation where HTTPS is essential.
  6. 6th August 1975State the term used for realistic data that a program would be expected to handle during normal use.
  7. 7th August 1975State what a foreign key is used for.
  8. 8th August 1975State the difference between lossy and lossless compression.
  9. 9th August 1975State the condition that must be met before a binary search can be used on an array.
  10. 10th August 1975A 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.
  11. 11th August 1975A 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.
  12. 12th August 1975Which piece of network hardware connects a LAN to another network such as the internet, directing data packets based on IP address?
  13. 13th August 1975State why a program written in a high level language must be translated.
  14. 14th August 1975Convert the denary number 45 to hexadecimal.
  15. 15th August 1975What does the acronym CPU stand for?
  16. 16th August 1975State what the term malware means.
  17. 17th August 1975Describe what a nested loop does when it processes a 2D array.
  18. 18th August 1975An 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).
  19. 19th August 1975Which of RAM and ROM is volatile, meaning its contents are lost when the power is removed?
  20. 20th August 1975Which piece of UK legislation controls how organisations must store and use people's personal data?
  21. 21st August 1975Given x = 5 and y = 8, state whether x < y AND x > 0 evaluates to True or False.
  22. 22nd August 1975State the value returned by LENGTH(word) if word stores the string 'Computer'.
  23. 23rd August 1975Give one reason why RAM on its own is not enough, and a computer also needs secondary storage.
  24. 24th August 1975Give two reasons why network communication is divided into layers.
  25. 25th August 1975A password field requires between 6 and 12 characters. State two boundary data values that should be used to test this field.
  26. 26th August 1975A table called books has fields bookId, title, authorId and copiesAvailable. Write an SQL statement that selects the title of every book with more than 2 copies available.
  27. 27th August 1975State one function carried out by the operating system of a computer.
  28. 28th August 1975In computational thinking, what is meant by the term 'decomposition'?
  29. 29th August 1975Given A = 1 and B = 1, state the value of A AND B.
  30. 30th August 1975State how many different values can be represented using 5 bits, and explain your reasoning.
  31. 31st August 1975Define a peer-to-peer network.