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Daily Practice · GCSE Computer Science

May 2014 - GCSE Computer Science 5-a-day

Every GCSE Computer Science sheet published in May 2014, with answers. Systems, data representation, networks, algorithms and programming.

← Today's GCSE Computer Science sheet

May 2014

31 sheets · 155 questions · GCSE

May 2014 compilationAll answers

Every sheet in May 2014

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

  1. 1st May 2014An 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).
  2. 2nd May 2014Which of RAM and ROM is volatile, meaning its contents are lost when the power is removed?
  3. 3rd May 2014Which piece of UK legislation controls how organisations must store and use people's personal data?
  4. 4th May 2014Given x = 5 and y = 8, state whether x < y AND x > 0 evaluates to True or False.
  5. 5th May 2014State the value returned by LENGTH(word) if word stores the string 'Computer'.
  6. 6th May 2014Give one reason why RAM on its own is not enough, and a computer also needs secondary storage.
  7. 7th May 2014Explain the role of TCP when a large file is downloaded.
  8. 8th May 2014A password field requires between 6 and 12 characters. State two boundary data values that should be used to test this field.
  9. 9th May 2014A table called books has fields bookId, title, authorId and copiesAvailable. Write an SQL statement that selects the title of every book with more than 2 copies available.
  10. 10th May 2014State one function carried out by the operating system of a computer.
  11. 11th May 2014In computational thinking, what is meant by the term 'decomposition'?
  12. 12th May 2014Given A = 1 and B = 1, state the value of A AND B.
  13. 13th May 2014State how many different values can be represented using 5 bits, and explain your reasoning.
  14. 14th May 2014Define a peer-to-peer network.
  15. 15th May 2014Give one advantage and one disadvantage of using a compiler.
  16. 16th May 2014Convert the denary number 5 to a 4-bit binary number.
  17. 17th May 2014A CPU has a clock speed of 4.0 GHz. Calculate how many clock cycles it completes in 2 seconds.
  18. 18th May 2014A 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.
  19. 19th May 2014Write a loop in pseudocode that outputs every element of a 1D array named names of length 6.
  20. 20th May 2014A mono sound clip has a sample rate of 4000 Hz and lasts 2 seconds. Calculate the total number of samples taken.
  21. 21st May 2014State the type of program that is typically stored in ROM.
  22. 22nd May 2014State one reason a small business might choose to use open source software instead of proprietary (closed source) software.
  23. 23rd May 2014A FOR loop runs: total = 0, FOR i = 1 TO 4, total = total + i, NEXT i. State the value of total after the loop finishes.
  24. 24th May 2014State the key difference between a procedure and a function.
  25. 25th May 2014State the typical maximum capacity of a single-layer DVD.
  26. 26th May 2014A user reads the same email on a phone and a tablet, and deleting it on one deletes it on the other. Which protocol is in use and why?
  27. 27th May 2014State what is meant by a syntax error.
  28. 28th May 2014Give one advantage of a relational database over a flat-file database.
  29. 29th May 2014What type of utility software reorganises files on a hard disk so fragmented parts are stored closer together?
  30. 30th May 2014Calculate the maximum number of comparisons required by a binary search on a sorted list of 512 items.
  31. 31st May 2014Given P = 0 and Q = 1, state the value of P OR Q.