Daily Practice · GCSE Computer Science
August 2015 - GCSE Computer Science 5-a-day
Every GCSE Computer Science sheet published in August 2015, with answers. Systems, data representation, networks, algorithms and programming.
Every sheet in August 2015
The same date always regenerates the same five questions, so a sheet you print today is the sheet a classmate prints tomorrow.
- 1st August 2015Which of RAM and ROM is volatile, meaning its contents are lost when the power is removed?
- 2nd August 2015Which piece of UK legislation controls how organisations must store and use people's personal data?
- 3rd August 2015Given x = 5 and y = 8, state whether x < y AND x > 0 evaluates to True or False.
- 4th August 2015State the value returned by LENGTH(word) if word stores the string 'Computer'.
- 5th August 2015Give one reason why RAM on its own is not enough, and a computer also needs secondary storage.
- 6th August 2015Name the four layers of the TCP/IP model in order from the one closest to the user.
- 7th August 2015A password field requires between 6 and 12 characters. State two boundary data values that should be used to test this field.
- 8th August 2015A 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.
- 9th August 2015State one function carried out by the operating system of a computer.
- 10th August 2015In computational thinking, what is meant by the term 'decomposition'?
- 11th August 2015Given A = 1 and B = 1, state the value of A AND B.
- 12th August 2015State how many different values can be represented using 5 bits, and explain your reasoning.
- 13th August 2015Define a peer-to-peer network.
- 14th August 2015A 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.
- 15th August 2015Convert the denary number 5 to a 4-bit binary number.
- 16th August 2015A CPU has a clock speed of 4.0 GHz. Calculate how many clock cycles it completes in 2 seconds.
- 17th August 2015A 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.
- 18th August 2015An array named temps holds 12 values. State the index of the first item and the index of the last item.
- 19th August 2015A mono sound clip has a sample rate of 4000 Hz and lasts 2 seconds. Calculate the total number of samples taken.
- 20th August 2015State the type of program that is typically stored in ROM.
- 21st August 2015State one reason a small business might choose to use open source software instead of proprietary (closed source) software.
- 22nd August 2015A FOR loop runs: total = 0, FOR i = 1 TO 4, total = total + i, NEXT i. State the value of total after the loop finishes.
- 23rd August 2015State the key difference between a procedure and a function.
- 24th August 2015State the typical maximum capacity of a single-layer DVD.
- 25th August 2015State the difference between HTTP and HTTPS, and give one situation where HTTPS is essential.
- 26th August 2015State what is meant by a syntax error.
- 27th August 2015Give one advantage of a relational database over a flat-file database.
- 28th August 2015What type of utility software reorganises files on a hard disk so fragmented parts are stored closer together?
- 29th August 2015Calculate the maximum number of comparisons required by a binary search on a sorted list of 512 items.
- 30th August 2015Given P = 0 and Q = 1, state the value of P OR Q.
- 31st August 2015Convert the hexadecimal number 3F to denary.