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Daily Practice · GCSE Computer Science

April 1976 5-a-day

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April 1976

30 sheets · 150 questions · GCSE

April 1976 compilationAll answers

Every sheet in April 1976

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 1976Explain why a running maximum should be initialised to the first element of the array rather than to 0.
  2. 2nd April 1976An 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).
  3. 3rd April 1976Which of RAM and ROM is volatile, meaning its contents are lost when the power is removed?
  4. 4th April 1976Which piece of UK legislation controls how organisations must store and use people's personal data?
  5. 5th April 1976Given x = 5 and y = 8, state whether x < y AND x > 0 evaluates to True or False.
  6. 6th April 1976State the correct order of the three operations used to read data from a text file.
  7. 7th April 1976Give one reason why RAM on its own is not enough, and a computer also needs secondary storage.
  8. 8th April 1976Name the four layers of the TCP/IP model in order from the one closest to the user.
  9. 9th April 1976A password field requires between 6 and 12 characters. State two boundary data values that should be used to test this field.
  10. 10th April 1976A 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.
  11. 11th April 1976State one function carried out by the operating system of a computer.
  12. 12th April 1976In computational thinking, what is meant by the term 'decomposition'?
  13. 13th April 1976Given A = 1 and B = 1, state the value of A AND B.
  14. 14th April 1976Convert the denary number 200 to hexadecimal, showing your working.
  15. 15th April 1976Define a peer-to-peer network.
  16. 16th April 1976A 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.
  17. 17th April 1976Convert the denary number 5 to a 4-bit binary number.
  18. 18th April 1976A CPU has a clock speed of 4.0 GHz. Calculate how many clock cycles it completes in 2 seconds.
  19. 19th April 1976A 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.
  20. 20th April 1976An array named temps holds 12 values. State the index of the first item and the index of the last item.
  21. 21st April 1976A mono sound clip has a sample rate of 4000 Hz and lasts 2 seconds. Calculate the total number of samples taken.
  22. 22nd April 1976State the type of program that is typically stored in ROM.
  23. 23rd April 1976State one reason a small business might choose to use open source software instead of proprietary (closed source) software.
  24. 24th April 1976A FOR loop runs: total = 0, FOR i = 1 TO 4, total = total + i, NEXT i. State the value of total after the loop finishes.
  25. 25th April 1976State the pseudocode operator commonly used to join (concatenate) two strings, then show how it joins 'Rev' and 'ision' to produce 'Revision'.
  26. 26th April 1976State the typical maximum capacity of a single-layer DVD.
  27. 27th April 1976State the difference between HTTP and HTTPS, and give one situation where HTTPS is essential.
  28. 28th April 1976State what is meant by a syntax error.
  29. 29th April 1976Define the term 'primary key' as used in a database table.
  30. 30th April 1976What type of utility software reorganises files on a hard disk so fragmented parts are stored closer together?