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Daily Practice · GCSE Computer Science

November 1970 5-a-day

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November 1970

30 sheets · 150 questions · GCSE

November 1970 compilationAll answers

Every sheet in November 1970

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 1970State the three stages of the fetch-decode-execute cycle in the order they occur.
  2. 2nd November 1970State one weakness of a simple shift cipher compared to modern encryption methods used on networks.
  3. 3rd November 1970An array named temps holds 12 values. State the index of the first item and the index of the last item.
  4. 4th November 1970Define the term 'pixel'.
  5. 5th November 1970Order these from fastest access speed to slowest: RAM, cache, registers, secondary storage.
  6. 6th November 1970Which piece of UK legislation makes it a criminal offence to gain unauthorised access to a computer system?
  7. 7th November 1970Evaluate the expression 23 DIV 4.
  8. 8th November 1970State the correct order of the three operations used to read data from a text file.
  9. 9th November 1970A 1 TB hard disk drive costs 40 pounds. A 500 GB solid-state drive costs 60 pounds. Calculate the cost per gigabyte of each device, and state which is cheaper per GB. Use 1 TB = 1000 GB.
  10. 10th November 1970State the difference between HTTP and HTTPS, and give one situation where HTTPS is essential.
  11. 11th November 1970A 'quantity' field on a website must only accept whole numbers from 1 to 10. Which validation check identifies that 15 has been entered?
  12. 12th November 1970A 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.
  13. 13th November 1970A row of 8 pixels is WWWBBBWW. Use run-length encoding to encode this row as pairs of (colour, run length).
  14. 14th November 1970An 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.
  15. 15th November 1970Complete: NOT 0 = ?
  16. 16th November 1970Convert the denary number 200 to hexadecimal, showing your working.
  17. 17th November 1970State what LAN stands for.
  18. 18th November 1970State why a program written in a high level language must be translated.
  19. 19th November 1970An 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.
  20. 20th November 1970Which CPU register holds the address of the next instruction to be fetched?
  21. 21st November 1970Distinguish between the network security threats known as phishing and pharming.
  22. 22nd November 1970Describe what a nested loop does when it processes a 2D array.
  23. 23rd November 1970A row of pixels is encoded using run-length encoding as: 3W 4B 3W. State the original row of pixels it represents.
  24. 24th November 1970A photo file is 3.5 MB in size. Calculate its size in kilobytes (KB). Use 1 MB = 1000 KB.
  25. 25th November 1970A 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.
  26. 26th November 1970State the most appropriate data type for storing a person's shoe size if only whole sizes (e.g. 7, 8, 9) are allowed.
  27. 27th November 1970State the pseudocode operator commonly used to join (concatenate) two strings, then show how it joins 'Rev' and 'ision' to produce 'Revision'.
  28. 28th November 1970Give one example of an optical secondary storage device.
  29. 29th November 1970Give two reasons why network communication is divided into layers.
  30. 30th November 1970State the term used for realistic data that a program would be expected to handle during normal use.