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Daily Practice · GCSE Computer Science

January 1960 5-a-day

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January 1960

31 sheets · 155 questions · GCSE

January 1960 compilationAll answers

Every sheet in January 1960

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

  1. 1st January 1960A 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.
  2. 2nd January 1960Convert the hexadecimal number FF to an 8-bit binary number.
  3. 3rd January 1960Which piece of network hardware connects a LAN to another network such as the internet, directing data packets based on IP address?
  4. 4th January 1960Explain why an interpreter is often preferred while a program is being written.
  5. 5th January 1960Convert the denary number 45 to hexadecimal.
  6. 6th January 1960What does the acronym CPU stand for?
  7. 7th January 1960State what the term malware means.
  8. 8th January 1960A 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.
  9. 9th January 1960An 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).
  10. 10th January 1960Which of RAM and ROM is volatile, meaning its contents are lost when the power is removed?
  11. 11th January 1960Which piece of UK legislation controls how organisations must store and use people's personal data?
  12. 12th January 1960Given x = 5 and y = 8, state whether x < y AND x > 0 evaluates to True or False.
  13. 13th January 1960State the correct order of the three operations used to read data from a text file.
  14. 14th January 1960Give one reason why RAM on its own is not enough, and a computer also needs secondary storage.
  15. 15th January 1960State the layer that IP operates in, and describe its job.
  16. 16th January 1960A password field requires between 6 and 12 characters. State two boundary data values that should be used to test this field.
  17. 17th January 1960A 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.
  18. 18th January 1960State one function carried out by the operating system of a computer.
  19. 19th January 1960In computational thinking, what is meant by the term 'decomposition'?
  20. 20th January 1960Given A = 1 and B = 1, state the value of A AND B.
  21. 21st January 1960Convert the denary number 200 to hexadecimal, showing your working.
  22. 22nd January 1960Define a peer-to-peer network.
  23. 23rd January 1960Describe what syntax highlighting is and how it helps a programmer.
  24. 24th January 1960Convert the denary number 5 to a 4-bit binary number.
  25. 25th January 1960A CPU has a clock speed of 4.0 GHz. Calculate how many clock cycles it completes in 2 seconds.
  26. 26th January 1960A simple cipher shifts every letter 2 places forward in the alphabet, wrapping around so Y becomes A and Z becomes B. Encrypt the plaintext CAT using this cipher.
  27. 27th January 1960Trace 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).
  28. 28th January 1960A mono sound clip has a sample rate of 4000 Hz and lasts 2 seconds. Calculate the total number of samples taken.
  29. 29th January 1960State the type of program that is typically stored in ROM.
  30. 30th January 1960State one reason a small business might choose to use open source software instead of proprietary (closed source) software.
  31. 31st January 1960A FOR loop runs: total = 0, FOR i = 1 TO 4, total = total + i, NEXT i. State the value of total after the loop finishes.