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Daily Practice · GCSE Computer Science

July 2016 - GCSE Computer Science 5-a-day

Every GCSE Computer Science sheet published in July 2016, with answers. Systems, data representation, networks, algorithms and programming.

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July 2016

31 sheets · 155 questions · GCSE

July 2016 compilationAll answers

Every sheet in July 2016

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 2016Which piece of network hardware connects a LAN to another network such as the internet, directing data packets based on IP address?
  2. 2nd July 2016Describe what syntax highlighting is and how it helps a programmer.
  3. 3rd July 2016Convert the denary number 45 to hexadecimal.
  4. 4th July 2016What does the acronym CPU stand for?
  5. 5th July 2016State what the term malware means.
  6. 6th July 2016Trace this algorithm with data = [4, 9, 2, 9, 7] and state the final output. total = 0; count = 0; for i = 0 to 4: if data[i] > 5 then total = total + data[i] and count = count + 1; next i; print(total, count).
  7. 7th July 2016An 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).
  8. 8th July 2016Which of RAM and ROM is volatile, meaning its contents are lost when the power is removed?
  9. 9th July 2016Which piece of UK legislation controls how organisations must store and use people's personal data?
  10. 10th July 2016Given x = 5 and y = 8, state whether x < y AND x > 0 evaluates to True or False.
  11. 11th July 2016A programmer wants any syntax error in their program to be reported before the program starts running at all. State whether a compiler or an interpreter behaves this way, and explain why.
  12. 12th July 2016Give one reason why RAM on its own is not enough, and a computer also needs secondary storage.
  13. 13th July 2016Explain the role of TCP when a large file is downloaded.
  14. 14th July 2016A password field requires between 6 and 12 characters. State two boundary data values that should be used to test this field.
  15. 15th July 2016A table called bookings has fields bookingId, customerName and eventDate. Write an SQL statement that deletes the booking with bookingId 45.
  16. 16th July 2016State one function carried out by the operating system of a computer.
  17. 17th July 2016In computational thinking, what is meant by the term 'decomposition'?
  18. 18th July 2016Given A = 1 and B = 1, state the value of A AND B.
  19. 19th July 2016Convert the denary number 39 to an 8-bit binary number, showing your working.
  20. 20th July 2016Define a peer-to-peer network.
  21. 21st July 2016Give one advantage and one disadvantage of using a compiler.
  22. 22nd July 2016Convert the denary number 5 to a 4-bit binary number.
  23. 23rd July 2016A CPU has a clock speed of 4.0 GHz. Calculate how many clock cycles it completes in 2 seconds.
  24. 24th July 2016A 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.
  25. 25th July 2016Write a loop in pseudocode that outputs every element of a 1D array named names of length 6.
  26. 26th July 2016A mono sound clip has a sample rate of 4000 Hz and lasts 2 seconds. Calculate the total number of samples taken.
  27. 27th July 2016State the type of program that is typically stored in ROM.
  28. 28th July 2016State one reason a small business might choose to use open source software instead of proprietary (closed source) software.
  29. 29th July 2016A FOR loop runs: total = 0, FOR i = 1 TO 4, total = total + i, NEXT i. State the value of total after the loop finishes.
  30. 30th July 2016Give one specific way this code could be refined without changing what it does: a = 5, b = 3, c = a + b, PRINT c
  31. 31st July 2016State the typical maximum capacity of a single-layer DVD.