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Daily Practice · GCSE Computer Science

September 1982 5-a-day

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September 1982

30 sheets · 150 questions · GCSE

September 1982 compilationAll answers

Every sheet in September 1982

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

  1. 1st September 1982Explain the role of TCP when a large file is downloaded.
  2. 2nd September 1982Explain why iterative testing, carried out throughout development, tends to make errors cheaper to fix than relying only on final testing.
  3. 3rd September 1982State what a foreign key is used for.
  4. 4th September 1982Define the term 'interrupt' as used to describe a signal received by a CPU.
  5. 5th September 1982An 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.
  6. 6th September 1982Evaluate X = NOT A AND B when A = 0 and B = 1.
  7. 7th September 1982A pseudocode algorithm is: count <- 0, x <- 10, WHILE x > 0, count <- count + 1, x <- x - 3, ENDWHILE, OUTPUT count. Complete a trace table for x and count, laid out as x | count, then state the value output.
  8. 8th September 1982Give one advantage of a star topology compared with a mesh topology.
  9. 9th September 1982Give one advantage and one disadvantage of using a compiler.
  10. 10th September 1982Add the 8-bit binary numbers 00101101 and 00010011, giving your answer as an 8-bit binary number.
  11. 11th September 1982State the three stages of the fetch-decode-execute cycle in the order they occur.
  12. 12th September 1982State one weakness of a simple shift cipher compared to modern encryption methods used on networks.
  13. 13th September 1982Write a loop in pseudocode that outputs every element of a 1D array named names of length 6.
  14. 14th September 1982Define the term 'pixel'.
  15. 15th September 1982Order these from fastest access speed to slowest: RAM, cache, registers, secondary storage.
  16. 16th September 1982Which piece of UK legislation makes it a criminal offence to gain unauthorised access to a computer system?
  17. 17th September 1982Evaluate the expression 23 DIV 4.
  18. 18th September 1982State the value returned by LENGTH(word) if word stores the string 'Computer'.
  19. 19th September 1982A 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.
  20. 20th September 1982A 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?
  21. 21st September 1982A 'quantity' field on a website must only accept whole numbers from 1 to 10. Which validation check identifies that 15 has been entered?
  22. 22nd September 1982A table called books has fields bookId, title, authorId and copiesAvailable. Write an SQL statement that selects the title of every book with more than 2 copies available.
  23. 23rd September 1982A row of 8 pixels is WWWBBBWW. Use run-length encoding to encode this row as pairs of (colour, run length).
  24. 24th September 1982An 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.
  25. 25th September 1982Complete: NOT 0 = ?
  26. 26th September 1982State how many different values can be represented using 5 bits, and explain your reasoning.
  27. 27th September 1982State what LAN stands for.
  28. 28th September 1982Name the translator used for assembly language and describe how it differs from a compiler.
  29. 29th September 1982An 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.
  30. 30th September 1982Which CPU register holds the address of the next instruction to be fetched?