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Daily Practice · GCSE Computer Science

November 1971 5-a-day

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November 1971

30 sheets · 150 questions · GCSE

November 1971 compilationAll answers

Every sheet in November 1971

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 1971A photo file is 3.5 MB in size. Calculate its size in kilobytes (KB). Use 1 MB = 1000 KB.
  2. 2nd November 1971A 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.
  3. 3rd November 1971State the most appropriate data type for storing a person's shoe size if only whole sizes (e.g. 7, 8, 9) are allowed.
  4. 4th November 1971Write 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.
  5. 5th November 1971Give one example of an optical secondary storage device.
  6. 6th November 1971Define the term protocol.
  7. 7th November 1971State the term used for realistic data that a program would be expected to handle during normal use.
  8. 8th November 1971State what a foreign key is used for.
  9. 9th November 1971State the difference between lossy and lossless compression.
  10. 10th November 1971State the condition that must be met before a binary search can be used on an array.
  11. 11th November 1971A 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.
  12. 12th November 1971A 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.
  13. 13th November 1971Which piece of network hardware connects a LAN to another network such as the internet, directing data packets based on IP address?
  14. 14th November 1971Explain the purpose of a breakpoint.
  15. 15th November 1971Convert the denary number 45 to hexadecimal.
  16. 16th November 1971What does the acronym CPU stand for?
  17. 17th November 1971State what the term malware means.
  18. 18th November 1971Explain why a running maximum should be initialised to the first element of the array rather than to 0.
  19. 19th November 1971An 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).
  20. 20th November 1971Which of RAM and ROM is volatile, meaning its contents are lost when the power is removed?
  21. 21st November 1971Which piece of UK legislation controls how organisations must store and use people's personal data?
  22. 22nd November 1971Given x = 5 and y = 8, state whether x < y AND x > 0 evaluates to True or False.
  23. 23rd November 1971State the value returned by LENGTH(word) if word stores the string 'Computer'.
  24. 24th November 1971Give one reason why RAM on its own is not enough, and a computer also needs secondary storage.
  25. 25th November 1971Name the four layers of the TCP/IP model in order from the one closest to the user.
  26. 26th November 1971A password field requires between 6 and 12 characters. State two boundary data values that should be used to test this field.
  27. 27th November 1971A 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.
  28. 28th November 1971State one function carried out by the operating system of a computer.
  29. 29th November 1971In computational thinking, what is meant by the term 'decomposition'?
  30. 30th November 1971Given A = 1 and B = 1, state the value of A AND B.