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Daily Practice · GCSE Computer Science

July 1976 5-a-day

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July 1976

31 sheets · 155 questions · GCSE

July 1976 compilationAll answers

Every sheet in July 1976

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

  1. 1st July 1976Give one advantage and one disadvantage of using a compiler.
  2. 2nd July 1976An 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 July 1976Which CPU register holds the address of the next instruction to be fetched?
  4. 4th July 1976Distinguish between the network security threats known as phishing and pharming.
  5. 5th July 1976Write a loop in pseudocode that outputs every element of a 1D array named names of length 6.
  6. 6th July 1976A row of pixels is encoded using run-length encoding as: 3W 4B 3W. State the original row of pixels it represents.
  7. 7th July 1976A photo file is 3.5 MB in size. Calculate its size in kilobytes (KB). Use 1 MB = 1000 KB.
  8. 8th July 1976A 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 July 1976State 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 July 1976State the key difference between a procedure and a function.
  11. 11th July 1976Give one example of an optical secondary storage device.
  12. 12th July 1976A user reads the same email on a phone and a tablet, and deleting it on one deletes it on the other. Which protocol is in use and why?
  13. 13th July 1976State the term used for realistic data that a program would be expected to handle during normal use.
  14. 14th July 1976Give one advantage of a relational database over a flat-file database.
  15. 15th July 1976State the difference between lossy and lossless compression.
  16. 16th July 1976State the condition that must be met before a binary search can be used on an array.
  17. 17th July 1976A 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 July 1976Convert the hexadecimal number 3F to denary.
  19. 19th July 1976Which piece of network hardware connects a LAN to another network such as the internet, directing data packets based on IP address?
  20. 20th July 1976Name the translator used for assembly language and describe how it differs from a compiler.
  21. 21st July 1976Convert the denary number 45 to hexadecimal.
  22. 22nd July 1976What does the acronym CPU stand for?
  23. 23rd July 1976State what the term malware means.
  24. 24th July 1976Explain what happens if a program tries to read index 5 of an array declared with 5 elements.
  25. 25th July 1976An 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 July 1976Which of RAM and ROM is volatile, meaning its contents are lost when the power is removed?
  27. 27th July 1976Which piece of UK legislation controls how organisations must store and use people's personal data?
  28. 28th July 1976Given x = 5 and y = 8, state whether x < y AND x > 0 evaluates to True or False.
  29. 29th July 1976A 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 July 1976Give one reason why RAM on its own is not enough, and a computer also needs secondary storage.
  31. 31st July 1976Define the term protocol.