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Daily Practice · GCSE Computer Science

May 1984 5-a-day

← Today's GCSE Computer Science sheet

May 1984

31 sheets · 155 questions · GCSE

May 1984 compilationAll answers

Every sheet in May 1984

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 1984State the difference between HTTP and HTTPS, and give one situation where HTTPS is essential.
  2. 2nd May 1984State the term used for realistic data that a program would be expected to handle during normal use.
  3. 3rd May 1984State what a foreign key is used for.
  4. 4th May 1984State the difference between lossy and lossless compression.
  5. 5th May 1984State the condition that must be met before a binary search can be used on an array.
  6. 6th May 1984A 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.
  7. 7th May 1984A 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.
  8. 8th May 1984Which piece of network hardware connects a LAN to another network such as the internet, directing data packets based on IP address?
  9. 9th May 1984State why a program written in a high level language must be translated.
  10. 10th May 1984Convert the denary number 45 to hexadecimal.
  11. 11th May 1984What does the acronym CPU stand for?
  12. 12th May 1984State what the term malware means.
  13. 13th May 1984Describe what a nested loop does when it processes a 2D array.
  14. 14th May 1984An 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).
  15. 15th May 1984Which of RAM and ROM is volatile, meaning its contents are lost when the power is removed?
  16. 16th May 1984Which piece of UK legislation controls how organisations must store and use people's personal data?
  17. 17th May 1984Given x = 5 and y = 8, state whether x < y AND x > 0 evaluates to True or False.
  18. 18th May 1984State the value returned by LENGTH(word) if word stores the string 'Computer'.
  19. 19th May 1984Give one reason why RAM on its own is not enough, and a computer also needs secondary storage.
  20. 20th May 1984Give two reasons why network communication is divided into layers.
  21. 21st May 1984A password field requires between 6 and 12 characters. State two boundary data values that should be used to test this field.
  22. 22nd May 1984A 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.
  23. 23rd May 1984State one function carried out by the operating system of a computer.
  24. 24th May 1984In computational thinking, what is meant by the term 'decomposition'?
  25. 25th May 1984Given A = 1 and B = 1, state the value of A AND B.
  26. 26th May 1984State how many different values can be represented using 5 bits, and explain your reasoning.
  27. 27th May 1984Define a peer-to-peer network.
  28. 28th May 1984Explain why an interpreter is often preferred while a program is being written.
  29. 29th May 1984Convert the denary number 5 to a 4-bit binary number.
  30. 30th May 1984A CPU has a clock speed of 4.0 GHz. Calculate how many clock cycles it completes in 2 seconds.
  31. 31st May 1984A simple cipher shifts every letter 2 places forward in the alphabet, wrapping around so Y becomes A and Z becomes B. Encrypt the plaintext CAT using this cipher.