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Daily Practice · GCSE Computer Science

January 1989 5-a-day

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January 1989

31 sheets · 155 questions · GCSE

January 1989 compilationAll answers

Every sheet in January 1989

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

  1. 1st January 1989A 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 January 1989State 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 January 1989State the key difference between a procedure and a function.
  4. 4th January 1989Give one example of an optical secondary storage device.
  5. 5th January 1989Name the four layers of the TCP/IP model in order from the one closest to the user.
  6. 6th January 1989State the term used for realistic data that a program would be expected to handle during normal use.
  7. 7th January 1989Give one advantage of a relational database over a flat-file database.
  8. 8th January 1989State the difference between lossy and lossless compression.
  9. 9th January 1989State the condition that must be met before a binary search can be used on an array.
  10. 10th January 1989A 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 January 1989Convert the hexadecimal number 3F to denary.
  12. 12th January 1989Which piece of network hardware connects a LAN to another network such as the internet, directing data packets based on IP address?
  13. 13th January 1989A program compiles and runs but always outputs an average that is too small. State the type of error and explain why the translator did not report it.
  14. 14th January 1989Convert the denary number 45 to hexadecimal.
  15. 15th January 1989What does the acronym CPU stand for?
  16. 16th January 1989State what the term malware means.
  17. 17th January 1989An array named temps holds 12 values. State the index of the first item and the index of the last item.
  18. 18th January 1989An 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 January 1989Which of RAM and ROM is volatile, meaning its contents are lost when the power is removed?
  20. 20th January 1989Which piece of UK legislation controls how organisations must store and use people's personal data?
  21. 21st January 1989Given x = 5 and y = 8, state whether x < y AND x > 0 evaluates to True or False.
  22. 22nd January 1989A programmer wants any syntax error in their program to be reported before the program starts running at all. State whether a compiler or an interpreter behaves this way, and explain why.
  23. 23rd January 1989Give one reason why RAM on its own is not enough, and a computer also needs secondary storage.
  24. 24th January 1989State the difference between HTTP and HTTPS, and give one situation where HTTPS is essential.
  25. 25th January 1989A password field requires between 6 and 12 characters. State two boundary data values that should be used to test this field.
  26. 26th January 1989A table called bookings has fields bookingId, customerName and eventDate. Write an SQL statement that deletes the booking with bookingId 45.
  27. 27th January 1989State one function carried out by the operating system of a computer.
  28. 28th January 1989In computational thinking, what is meant by the term 'decomposition'?
  29. 29th January 1989Given A = 1 and B = 1, state the value of A AND B.
  30. 30th January 1989Convert the denary number 39 to an 8-bit binary number, showing your working.
  31. 31st January 1989Define a peer-to-peer network.