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Daily Practice · GCSE Computer Science

January 1965 5-a-day

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January 1965

31 sheets · 155 questions · GCSE

January 1965 compilationAll answers

Every sheet in January 1965

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 1965A 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.
  2. 2nd January 1965Convert the denary number 45 to hexadecimal.
  3. 3rd January 1965What does the acronym CPU stand for?
  4. 4th January 1965State what the term malware means.
  5. 5th January 1965An array named temps holds 12 values. State the index of the first item and the index of the last item.
  6. 6th January 1965An 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).
  7. 7th January 1965Which of RAM and ROM is volatile, meaning its contents are lost when the power is removed?
  8. 8th January 1965Which piece of UK legislation controls how organisations must store and use people's personal data?
  9. 9th January 1965Given x = 5 and y = 8, state whether x < y AND x > 0 evaluates to True or False.
  10. 10th January 1965State the correct order of the three operations used to read data from a text file.
  11. 11th January 1965Give one reason why RAM on its own is not enough, and a computer also needs secondary storage.
  12. 12th January 1965State the difference between HTTP and HTTPS, and give one situation where HTTPS is essential.
  13. 13th January 1965A password field requires between 6 and 12 characters. State two boundary data values that should be used to test this field.
  14. 14th January 1965A 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.
  15. 15th January 1965State one function carried out by the operating system of a computer.
  16. 16th January 1965In computational thinking, what is meant by the term 'decomposition'?
  17. 17th January 1965Given A = 1 and B = 1, state the value of A AND B.
  18. 18th January 1965Convert the denary number 200 to hexadecimal, showing your working.
  19. 19th January 1965Define a peer-to-peer network.
  20. 20th January 1965State why a program written in a high level language must be translated.
  21. 21st January 1965Convert the denary number 5 to a 4-bit binary number.
  22. 22nd January 1965A CPU has a clock speed of 4.0 GHz. Calculate how many clock cycles it completes in 2 seconds.
  23. 23rd January 1965A 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.
  24. 24th January 1965Describe what a nested loop does when it processes a 2D array.
  25. 25th January 1965A mono sound clip has a sample rate of 4000 Hz and lasts 2 seconds. Calculate the total number of samples taken.
  26. 26th January 1965State the type of program that is typically stored in ROM.
  27. 27th January 1965State one reason a small business might choose to use open source software instead of proprietary (closed source) software.
  28. 28th January 1965A FOR loop runs: total = 0, FOR i = 1 TO 4, total = total + i, NEXT i. State the value of total after the loop finishes.
  29. 29th January 1965State the pseudocode operator commonly used to join (concatenate) two strings, then show how it joins 'Rev' and 'ision' to produce 'Revision'.
  30. 30th January 1965State the typical maximum capacity of a single-layer DVD.
  31. 31st January 1965Give two reasons why network communication is divided into layers.