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Daily Practice · GCSE Computer Science

September 1997 - GCSE Computer Science 5-a-day

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September 1997

30 sheets · 150 questions · GCSE

September 1997 compilationAll answers

Every sheet in September 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 September 1997Give one advantage of a star topology compared with a mesh topology.
  2. 2nd September 1997Name the translator used for assembly language and describe how it differs from a compiler.
  3. 3rd September 1997Add the 8-bit binary numbers 00101101 and 00010011, giving your answer as an 8-bit binary number.
  4. 4th September 1997State the three stages of the fetch-decode-execute cycle in the order they occur.
  5. 5th September 1997State one weakness of a simple shift cipher compared to modern encryption methods used on networks.
  6. 6th September 1997Explain what happens if a program tries to read index 5 of an array declared with 5 elements.
  7. 7th September 1997Define the term 'pixel'.
  8. 8th September 1997Order these from fastest access speed to slowest: RAM, cache, registers, secondary storage.
  9. 9th September 1997Which piece of UK legislation makes it a criminal offence to gain unauthorised access to a computer system?
  10. 10th September 1997Evaluate the expression 23 DIV 4.
  11. 11th September 1997State the value returned by LENGTH(word) if word stores the string 'Computer'.
  12. 12th September 1997A 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.
  13. 13th September 1997Define the term protocol.
  14. 14th September 1997A 'quantity' field on a website must only accept whole numbers from 1 to 10. Which validation check identifies that 15 has been entered?
  15. 15th September 1997A 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.
  16. 16th September 1997A row of 8 pixels is WWWBBBWW. Use run-length encoding to encode this row as pairs of (colour, run length).
  17. 17th September 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.
  18. 18th September 1997Complete: NOT 0 = ?
  19. 19th September 1997State how many different values can be represented using 5 bits, and explain your reasoning.
  20. 20th September 1997State what LAN stands for.
  21. 21st September 1997Explain the purpose of a breakpoint.
  22. 22nd September 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.
  23. 23rd September 1997Which CPU register holds the address of the next instruction to be fetched?
  24. 24th September 1997Distinguish between the network security threats known as phishing and pharming.
  25. 25th September 1997Explain why a running maximum should be initialised to the first element of the array rather than to 0.
  26. 26th September 1997A row of pixels is encoded using run-length encoding as: 3W 4B 3W. State the original row of pixels it represents.
  27. 27th September 1997A photo file is 3.5 MB in size. Calculate its size in kilobytes (KB). Use 1 MB = 1000 KB.
  28. 28th September 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.
  29. 29th September 1997State the most appropriate data type for storing a person's shoe size if only whole sizes (e.g. 7, 8, 9) are allowed.
  30. 30th September 1997State the key difference between a procedure and a function.