Daily Practice · GCSE Computer Science
January 2014 - GCSE Computer Science 5-a-day
Every GCSE Computer Science sheet published in January 2014, with answers. Systems, data representation, networks, algorithms and programming.
Every sheet in January 2014
The same date always regenerates the same five questions, so a sheet you print today is the sheet a classmate prints tomorrow.
- 1st January 2014Which piece of network hardware connects a LAN to another network such as the internet, directing data packets based on IP address?
- 2nd January 2014Give one advantage and one disadvantage of using a compiler.
- 3rd January 2014Convert the denary number 45 to hexadecimal.
- 4th January 2014What does the acronym CPU stand for?
- 5th January 2014State what the term malware means.
- 6th January 2014Write a loop in pseudocode that outputs every element of a 1D array named names of length 6.
- 7th January 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).
- 8th January 2014Which of RAM and ROM is volatile, meaning its contents are lost when the power is removed?
- 9th January 2014Which piece of UK legislation controls how organisations must store and use people's personal data?
- 10th January 2014Given x = 5 and y = 8, state whether x < y AND x > 0 evaluates to True or False.
- 11th January 2014A 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.
- 12th January 2014Give one reason why RAM on its own is not enough, and a computer also needs secondary storage.
- 13th January 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?
- 14th January 2014A password field requires between 6 and 12 characters. State two boundary data values that should be used to test this field.
- 15th January 2014A table called bookings has fields bookingId, customerName and eventDate. Write an SQL statement that deletes the booking with bookingId 45.
- 16th January 2014State one function carried out by the operating system of a computer.
- 17th January 2014In computational thinking, what is meant by the term 'decomposition'?
- 18th January 2014Given A = 1 and B = 1, state the value of A AND B.
- 19th January 2014Convert the denary number 39 to an 8-bit binary number, showing your working.
- 20th January 2014Define a peer-to-peer network.
- 21st January 2014Name the translator used for assembly language and describe how it differs from a compiler.
- 22nd January 2014Convert the denary number 5 to a 4-bit binary number.
- 23rd January 2014A CPU has a clock speed of 4.0 GHz. Calculate how many clock cycles it completes in 2 seconds.
- 24th January 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.
- 25th January 2014Explain what happens if a program tries to read index 5 of an array declared with 5 elements.
- 26th January 2014A mono sound clip has a sample rate of 4000 Hz and lasts 2 seconds. Calculate the total number of samples taken.
- 27th January 2014State the type of program that is typically stored in ROM.
- 28th January 2014State one reason a small business might choose to use open source software instead of proprietary (closed source) software.
- 29th January 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.
- 30th January 2014Give one specific way this code could be refined without changing what it does: a = 5, b = 3, c = a + b, PRINT c
- 31st January 2014State the typical maximum capacity of a single-layer DVD.