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Daily Practice · GCSE Computer Science

January 1974 5-a-day

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January 1974

31 sheets · 155 questions · GCSE

January 1974 compilationAll answers

Every sheet in January 1974

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 1974Name the translator used for assembly language and describe how it differs from a compiler.
  2. 2nd January 1974An 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.
  3. 3rd January 1974Which CPU register holds the address of the next instruction to be fetched?
  4. 4th January 1974Distinguish between the network security threats known as phishing and pharming.
  5. 5th January 1974Explain what happens if a program tries to read index 5 of an array declared with 5 elements.
  6. 6th January 1974A row of pixels is encoded using run-length encoding as: 3W 4B 3W. State the original row of pixels it represents.
  7. 7th January 1974A photo file is 3.5 MB in size. Calculate its size in kilobytes (KB). Use 1 MB = 1000 KB.
  8. 8th January 1974A 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.
  9. 9th January 1974State the most appropriate data type for storing a person's shoe size if only whole sizes (e.g. 7, 8, 9) are allowed.
  10. 10th January 1974State the key difference between a procedure and a function.
  11. 11th January 1974Give one example of an optical secondary storage device.
  12. 12th January 1974Define the term protocol.
  13. 13th January 1974State the term used for realistic data that a program would be expected to handle during normal use.
  14. 14th January 1974Give one advantage of a relational database over a flat-file database.
  15. 15th January 1974State the difference between lossy and lossless compression.
  16. 16th January 1974State the condition that must be met before a binary search can be used on an array.
  17. 17th January 1974A 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.
  18. 18th January 1974Convert the hexadecimal number 3F to denary.
  19. 19th January 1974Which piece of network hardware connects a LAN to another network such as the internet, directing data packets based on IP address?
  20. 20th January 1974Explain the purpose of a breakpoint.
  21. 21st January 1974Convert the denary number 45 to hexadecimal.
  22. 22nd January 1974What does the acronym CPU stand for?
  23. 23rd January 1974State what the term malware means.
  24. 24th January 1974Explain why a running maximum should be initialised to the first element of the array rather than to 0.
  25. 25th January 1974An 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).
  26. 26th January 1974Which of RAM and ROM is volatile, meaning its contents are lost when the power is removed?
  27. 27th January 1974Which piece of UK legislation controls how organisations must store and use people's personal data?
  28. 28th January 1974Given x = 5 and y = 8, state whether x < y AND x > 0 evaluates to True or False.
  29. 29th January 1974A 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.
  30. 30th January 1974Give one reason why RAM on its own is not enough, and a computer also needs secondary storage.
  31. 31st January 1974Name the four layers of the TCP/IP model in order from the one closest to the user.