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Daily Practice · GCSE Computer Science

April 1961 5-a-day

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April 1961

30 sheets · 150 questions · GCSE

April 1961 compilationAll answers

Every sheet in April 1961

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

  1. 1st April 1961A 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 April 1961Convert the hexadecimal number FF to an 8-bit binary number.
  3. 3rd April 1961Which piece of network hardware connects a LAN to another network such as the internet, directing data packets based on IP address?
  4. 4th April 1961Name the translator used for assembly language and describe how it differs from a compiler.
  5. 5th April 1961Convert the denary number 45 to hexadecimal.
  6. 6th April 1961What does the acronym CPU stand for?
  7. 7th April 1961State what the term malware means.
  8. 8th April 1961Explain what happens if a program tries to read index 5 of an array declared with 5 elements.
  9. 9th April 1961An 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 April 1961Which of RAM and ROM is volatile, meaning its contents are lost when the power is removed?
  11. 11th April 1961Which piece of UK legislation controls how organisations must store and use people's personal data?
  12. 12th April 1961Given x = 5 and y = 8, state whether x < y AND x > 0 evaluates to True or False.
  13. 13th April 1961State the correct order of the three operations used to read data from a text file.
  14. 14th April 1961Give one reason why RAM on its own is not enough, and a computer also needs secondary storage.
  15. 15th April 1961Define the term protocol.
  16. 16th April 1961A password field requires between 6 and 12 characters. State two boundary data values that should be used to test this field.
  17. 17th April 1961A 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 April 1961State one function carried out by the operating system of a computer.
  19. 19th April 1961In computational thinking, what is meant by the term 'decomposition'?
  20. 20th April 1961Given A = 1 and B = 1, state the value of A AND B.
  21. 21st April 1961Convert the denary number 200 to hexadecimal, showing your working.
  22. 22nd April 1961Define a peer-to-peer network.
  23. 23rd April 1961Explain the purpose of a breakpoint.
  24. 24th April 1961Convert the denary number 5 to a 4-bit binary number.
  25. 25th April 1961A CPU has a clock speed of 4.0 GHz. Calculate how many clock cycles it completes in 2 seconds.
  26. 26th April 1961A 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 April 1961Explain why a running maximum should be initialised to the first element of the array rather than to 0.
  28. 28th April 1961A mono sound clip has a sample rate of 4000 Hz and lasts 2 seconds. Calculate the total number of samples taken.
  29. 29th April 1961State the type of program that is typically stored in ROM.
  30. 30th April 1961State one reason a small business might choose to use open source software instead of proprietary (closed source) software.