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Daily Practice · GCSE Computer Science

March 2001 - GCSE Computer Science 5-a-day

Every GCSE Computer Science sheet published in March 2001, with answers. Systems, data representation, networks, algorithms and programming.

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March 2001

31 sheets · 155 questions · GCSE

March 2001 compilationAll answers

Every sheet in March 2001

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

  1. 1st March 2001Distinguish between the network security threats known as phishing and pharming.
  2. 2nd March 2001A 2D array grid is declared as grid[4][6]. State how many rows and columns it has and how many elements it holds in total.
  3. 3rd March 2001A row of pixels is encoded using run-length encoding as: 3W 4B 3W. State the original row of pixels it represents.
  4. 4th March 2001A photo file is 3.5 MB in size. Calculate its size in kilobytes (KB). Use 1 MB = 1000 KB.
  5. 5th March 2001A 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.
  6. 6th March 2001State the most appropriate data type for storing a person's shoe size if only whole sizes (e.g. 7, 8, 9) are allowed.
  7. 7th March 2001Give one specific way this code could be refined without changing what it does: a = 5, b = 3, c = a + b, PRINT c
  8. 8th March 2001Give one example of an optical secondary storage device.
  9. 9th March 2001State the layer that IP operates in, and describe its job.
  10. 10th March 2001State the term used for realistic data that a program would be expected to handle during normal use.
  11. 11th March 2001A table called members has fields memberId, firstName, lastName and joinYear. Write an SQL statement that adds a new record with memberId 12, firstName 'Priya', lastName 'Shah' and joinYear 2026.
  12. 12th March 2001State the difference between lossy and lossless compression.
  13. 13th March 2001State the condition that must be met before a binary search can be used on an array.
  14. 14th March 2001A 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.
  15. 15th March 2001Convert the hexadecimal number FF to an 8-bit binary number.
  16. 16th March 2001Which piece of network hardware connects a LAN to another network such as the internet, directing data packets based on IP address?
  17. 17th March 2001Describe what syntax highlighting is and how it helps a programmer.
  18. 18th March 2001Convert the denary number 45 to hexadecimal.
  19. 19th March 2001What does the acronym CPU stand for?
  20. 20th March 2001State what the term malware means.
  21. 21st March 2001Trace this algorithm with data = [4, 9, 2, 9, 7] and state the final output. total = 0; count = 0; for i = 0 to 4: if data[i] > 5 then total = total + data[i] and count = count + 1; next i; print(total, count).
  22. 22nd March 2001An uncompressed file is 6000 KB. After lossless compression it is 1500 KB. Calculate the compression ratio in the form n:1 (original size : compressed size).
  23. 23rd March 2001Which of RAM and ROM is volatile, meaning its contents are lost when the power is removed?
  24. 24th March 2001Which piece of UK legislation controls how organisations must store and use people's personal data?
  25. 25th March 2001Given x = 5 and y = 8, state whether x < y AND x > 0 evaluates to True or False.
  26. 26th March 2001State the correct order of the three operations used to read data from a text file.
  27. 27th March 2001Give one reason why RAM on its own is not enough, and a computer also needs secondary storage.
  28. 28th March 2001Explain the role of TCP when a large file is downloaded.
  29. 29th March 2001A password field requires between 6 and 12 characters. State two boundary data values that should be used to test this field.
  30. 30th March 2001A 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.
  31. 31st March 2001State one function carried out by the operating system of a computer.