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Daily Practice · GCSE Computer Science

November 1955 5-a-day

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November 1955

30 sheets · 150 questions · GCSE

November 1955 compilationAll answers

Every sheet in November 1955

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 1955Define the term 'interrupt' as used to describe a signal received by a CPU.
  2. 2nd November 1955An array called items contains [12, 45, 7, 30, 19] at indices 0 to 4. Describe how a linear search would locate the value 30, stating the number of comparisons needed.
  3. 3rd November 1955Evaluate X = NOT A AND B when A = 0 and B = 1.
  4. 4th November 1955Convert the hexadecimal number FF to an 8-bit binary number.
  5. 5th November 1955Give one advantage of a star topology compared with a mesh topology.
  6. 6th November 1955Explain the purpose of a breakpoint.
  7. 7th November 1955Add the 8-bit binary numbers 00101101 and 00010011, giving your answer as an 8-bit binary number.
  8. 8th November 1955State the three stages of the fetch-decode-execute cycle in the order they occur.
  9. 9th November 1955State one weakness of a simple shift cipher compared to modern encryption methods used on networks.
  10. 10th November 1955Explain why a running maximum should be initialised to the first element of the array rather than to 0.
  11. 11th November 1955Define the term 'pixel'.
  12. 12th November 1955Order these from fastest access speed to slowest: RAM, cache, registers, secondary storage.
  13. 13th November 1955Which piece of UK legislation makes it a criminal offence to gain unauthorised access to a computer system?
  14. 14th November 1955Evaluate the expression 23 DIV 4.
  15. 15th November 1955State the correct order of the three operations used to read data from a text file.
  16. 16th November 1955A 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.
  17. 17th November 1955Name the four layers of the TCP/IP model in order from the one closest to the user.
  18. 18th November 1955A 'quantity' field on a website must only accept whole numbers from 1 to 10. Which validation check identifies that 15 has been entered?
  19. 19th November 1955A 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.
  20. 20th November 1955A row of 8 pixels is WWWBBBWW. Use run-length encoding to encode this row as pairs of (colour, run length).
  21. 21st November 1955An 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.
  22. 22nd November 1955Complete: NOT 0 = ?
  23. 23rd November 1955Convert the denary number 200 to hexadecimal, showing your working.
  24. 24th November 1955State what LAN stands for.
  25. 25th November 1955A program compiles and runs but always outputs an average that is too small. State the type of error and explain why the translator did not report it.
  26. 26th November 1955An 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.
  27. 27th November 1955Which CPU register holds the address of the next instruction to be fetched?
  28. 28th November 1955Distinguish between the network security threats known as phishing and pharming.
  29. 29th November 1955An array named temps holds 12 values. State the index of the first item and the index of the last item.
  30. 30th November 1955A row of pixels is encoded using run-length encoding as: 3W 4B 3W. State the original row of pixels it represents.