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Daily Practice · GCSE Computer Science

November 1995 - GCSE Computer Science 5-a-day

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November 1995

30 sheets · 150 questions · GCSE

November 1995 compilationAll answers

Every sheet in November 1995

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

  1. 1st November 1995A table called products has fields productId, name, price and stock. Write an SQL statement that changes the price of the product with productId 7 to 15.99.
  2. 2nd November 1995A row of 8 pixels is WWWBBBWW. Use run-length encoding to encode this row as pairs of (colour, run length).
  3. 3rd November 1995An 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.
  4. 4th November 1995Complete: NOT 0 = ?
  5. 5th November 1995Convert the denary number 200 to hexadecimal, showing your working.
  6. 6th November 1995State what LAN stands for.
  7. 7th November 1995Name the translator used for assembly language and describe how it differs from a compiler.
  8. 8th November 1995An 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.
  9. 9th November 1995Which CPU register holds the address of the next instruction to be fetched?
  10. 10th November 1995Distinguish between the network security threats known as phishing and pharming.
  11. 11th November 1995Explain what happens if a program tries to read index 5 of an array declared with 5 elements.
  12. 12th November 1995A row of pixels is encoded using run-length encoding as: 3W 4B 3W. State the original row of pixels it represents.
  13. 13th November 1995A photo file is 3.5 MB in size. Calculate its size in kilobytes (KB). Use 1 MB = 1000 KB.
  14. 14th November 1995A 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.
  15. 15th November 1995State the most appropriate data type for storing a person's shoe size if only whole sizes (e.g. 7, 8, 9) are allowed.
  16. 16th November 1995State the pseudocode operator commonly used to join (concatenate) two strings, then show how it joins 'Rev' and 'ision' to produce 'Revision'.
  17. 17th November 1995Give one example of an optical secondary storage device.
  18. 18th November 1995Define the term protocol.
  19. 19th November 1995State the term used for realistic data that a program would be expected to handle during normal use.
  20. 20th November 1995Define the term 'primary key' as used in a database table.
  21. 21st November 1995State the difference between lossy and lossless compression.
  22. 22nd November 1995State the condition that must be met before a binary search can be used on an array.
  23. 23rd November 1995A 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.
  24. 24th November 1995Convert the 8-bit binary number 10110100 directly to hexadecimal by splitting it into nibbles.
  25. 25th November 1995Which piece of network hardware connects a LAN to another network such as the internet, directing data packets based on IP address?
  26. 26th November 1995Explain the purpose of a breakpoint.
  27. 27th November 1995Convert the denary number 45 to hexadecimal.
  28. 28th November 1995What does the acronym CPU stand for?
  29. 29th November 1995State what the term malware means.
  30. 30th November 1995Explain why a running maximum should be initialised to the first element of the array rather than to 0.