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Daily Practice · GCSE Computer Science

July 1962 5-a-day

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July 1962

31 sheets · 155 questions · GCSE

July 1962 compilationAll answers

Every sheet in July 1962

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

  1. 1st July 1962A 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 July 1962Convert the hexadecimal number FF to an 8-bit binary number.
  3. 3rd July 1962Which piece of network hardware connects a LAN to another network such as the internet, directing data packets based on IP address?
  4. 4th July 1962State why a program written in a high level language must be translated.
  5. 5th July 1962Convert the denary number 45 to hexadecimal.
  6. 6th July 1962What does the acronym CPU stand for?
  7. 7th July 1962State what the term malware means.
  8. 8th July 1962Describe what a nested loop does when it processes a 2D array.
  9. 9th July 1962An 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 July 1962Which of RAM and ROM is volatile, meaning its contents are lost when the power is removed?
  11. 11th July 1962Which piece of UK legislation controls how organisations must store and use people's personal data?
  12. 12th July 1962Given x = 5 and y = 8, state whether x < y AND x > 0 evaluates to True or False.
  13. 13th July 1962State the correct order of the three operations used to read data from a text file.
  14. 14th July 1962Give one reason why RAM on its own is not enough, and a computer also needs secondary storage.
  15. 15th July 1962Give two reasons why network communication is divided into layers.
  16. 16th July 1962A password field requires between 6 and 12 characters. State two boundary data values that should be used to test this field.
  17. 17th July 1962A 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 July 1962State one function carried out by the operating system of a computer.
  19. 19th July 1962In computational thinking, what is meant by the term 'decomposition'?
  20. 20th July 1962Given A = 1 and B = 1, state the value of A AND B.
  21. 21st July 1962Convert the denary number 200 to hexadecimal, showing your working.
  22. 22nd July 1962Define a peer-to-peer network.
  23. 23rd July 1962Explain why an interpreter is often preferred while a program is being written.
  24. 24th July 1962Convert the denary number 5 to a 4-bit binary number.
  25. 25th July 1962A CPU has a clock speed of 4.0 GHz. Calculate how many clock cycles it completes in 2 seconds.
  26. 26th July 1962A 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 July 1962A 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.
  28. 28th July 1962A mono sound clip has a sample rate of 4000 Hz and lasts 2 seconds. Calculate the total number of samples taken.
  29. 29th July 1962State the type of program that is typically stored in ROM.
  30. 30th July 1962State one reason a small business might choose to use open source software instead of proprietary (closed source) software.
  31. 31st July 1962A FOR loop runs: total = 0, FOR i = 1 TO 4, total = total + i, NEXT i. State the value of total after the loop finishes.