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Daily Practice · GCSE Computer Science

October 1958 5-a-day

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October 1958

31 sheets · 155 questions · GCSE

October 1958 compilationAll answers

Every sheet in October 1958

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

  1. 1st October 1958State the condition that must be met before a binary search can be used on an array.
  2. 2nd October 1958A 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.
  3. 3rd October 1958Convert the hexadecimal number FF to an 8-bit binary number.
  4. 4th October 1958Which piece of network hardware connects a LAN to another network such as the internet, directing data packets based on IP address?
  5. 5th October 1958Explain the purpose of a breakpoint.
  6. 6th October 1958Convert the denary number 45 to hexadecimal.
  7. 7th October 1958What does the acronym CPU stand for?
  8. 8th October 1958State what the term malware means.
  9. 9th October 1958Explain why a running maximum should be initialised to the first element of the array rather than to 0.
  10. 10th October 1958An 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).
  11. 11th October 1958Which of RAM and ROM is volatile, meaning its contents are lost when the power is removed?
  12. 12th October 1958Which piece of UK legislation controls how organisations must store and use people's personal data?
  13. 13th October 1958Given x = 5 and y = 8, state whether x < y AND x > 0 evaluates to True or False.
  14. 14th October 1958State the correct order of the three operations used to read data from a text file.
  15. 15th October 1958Give one reason why RAM on its own is not enough, and a computer also needs secondary storage.
  16. 16th October 1958Name the four layers of the TCP/IP model in order from the one closest to the user.
  17. 17th October 1958A password field requires between 6 and 12 characters. State two boundary data values that should be used to test this field.
  18. 18th October 1958A 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.
  19. 19th October 1958State one function carried out by the operating system of a computer.
  20. 20th October 1958In computational thinking, what is meant by the term 'decomposition'?
  21. 21st October 1958Given A = 1 and B = 1, state the value of A AND B.
  22. 22nd October 1958Convert the denary number 200 to hexadecimal, showing your working.
  23. 23rd October 1958Define a peer-to-peer network.
  24. 24th October 1958A program compiles and runs but always outputs an average that is too small. State the type of error and explain why the translator did not report it.
  25. 25th October 1958Convert the denary number 5 to a 4-bit binary number.
  26. 26th October 1958A CPU has a clock speed of 4.0 GHz. Calculate how many clock cycles it completes in 2 seconds.
  27. 27th October 1958A 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.
  28. 28th October 1958An array named temps holds 12 values. State the index of the first item and the index of the last item.
  29. 29th October 1958A mono sound clip has a sample rate of 4000 Hz and lasts 2 seconds. Calculate the total number of samples taken.
  30. 30th October 1958State the type of program that is typically stored in ROM.
  31. 31st October 1958State one reason a small business might choose to use open source software instead of proprietary (closed source) software.