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Daily Practice · GCSE Computer Science

February 1997 - GCSE Computer Science 5-a-day

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February 1997

28 sheets · 140 questions · GCSE

February 1997 compilationAll answers

Every sheet in February 1997

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

  1. 1st February 1997An array contains [9, 2, 6], to be sorted using insertion sort. Show the state of the array after each new element has been inserted into its correct position.
  2. 2nd February 1997Complete: NOT 0 = ?
  3. 3rd February 1997Convert the denary number 200 to hexadecimal, showing your working.
  4. 4th February 1997State what LAN stands for.
  5. 5th February 1997State why a program written in a high level language must be translated.
  6. 6th February 1997An 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.
  7. 7th February 1997Which CPU register holds the address of the next instruction to be fetched?
  8. 8th February 1997Distinguish between the network security threats known as phishing and pharming.
  9. 9th February 1997Describe what a nested loop does when it processes a 2D array.
  10. 10th February 1997A row of pixels is encoded using run-length encoding as: 3W 4B 3W. State the original row of pixels it represents.
  11. 11th February 1997A photo file is 3.5 MB in size. Calculate its size in kilobytes (KB). Use 1 MB = 1000 KB.
  12. 12th February 1997A 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.
  13. 13th February 1997State the most appropriate data type for storing a person's shoe size if only whole sizes (e.g. 7, 8, 9) are allowed.
  14. 14th February 1997State the pseudocode operator commonly used to join (concatenate) two strings, then show how it joins 'Rev' and 'ision' to produce 'Revision'.
  15. 15th February 1997Give one example of an optical secondary storage device.
  16. 16th February 1997Give two reasons why network communication is divided into layers.
  17. 17th February 1997State the term used for realistic data that a program would be expected to handle during normal use.
  18. 18th February 1997Define the term 'primary key' as used in a database table.
  19. 19th February 1997State the difference between lossy and lossless compression.
  20. 20th February 1997State the condition that must be met before a binary search can be used on an array.
  21. 21st February 1997A 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.
  22. 22nd February 1997Convert the 8-bit binary number 10110100 directly to hexadecimal by splitting it into nibbles.
  23. 23rd February 1997Which piece of network hardware connects a LAN to another network such as the internet, directing data packets based on IP address?
  24. 24th February 1997Explain why an interpreter is often preferred while a program is being written.
  25. 25th February 1997Convert the denary number 45 to hexadecimal.
  26. 26th February 1997What does the acronym CPU stand for?
  27. 27th February 1997State what the term malware means.
  28. 28th February 1997A 2D array grid is declared as grid[4][6]. State how many rows and columns it has and how many elements it holds in total.