Daily Practice · GCSE Computer Science
November 2006 - GCSE Computer Science 5-a-day
Every GCSE Computer Science sheet published in November 2006, with answers. Systems, data representation, networks, algorithms and programming.
Every sheet in November 2006
The same date always regenerates the same five questions, so a sheet you print today is the sheet a classmate prints tomorrow.
- 1st November 2006State what the term malware means.
- 2nd November 2006Explain why a running maximum should be initialised to the first element of the array rather than to 0.
- 3rd November 2006An 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).
- 4th November 2006Which of RAM and ROM is volatile, meaning its contents are lost when the power is removed?
- 5th November 2006Which piece of UK legislation controls how organisations must store and use people's personal data?
- 6th November 2006Given x = 5 and y = 8, state whether x < y AND x > 0 evaluates to True or False.
- 7th November 2006State the value returned by LENGTH(word) if word stores the string 'Computer'.
- 8th November 2006Give one reason why RAM on its own is not enough, and a computer also needs secondary storage.
- 9th November 2006Name the four layers of the TCP/IP model in order from the one closest to the user.
- 10th November 2006A password field requires between 6 and 12 characters. State two boundary data values that should be used to test this field.
- 11th November 2006A 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.
- 12th November 2006State one function carried out by the operating system of a computer.
- 13th November 2006In computational thinking, what is meant by the term 'decomposition'?
- 14th November 2006Given A = 1 and B = 1, state the value of A AND B.
- 15th November 2006State how many different values can be represented using 5 bits, and explain your reasoning.
- 16th November 2006Define a peer-to-peer network.
- 17th November 2006A 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.
- 18th November 2006Convert the denary number 5 to a 4-bit binary number.
- 19th November 2006A CPU has a clock speed of 4.0 GHz. Calculate how many clock cycles it completes in 2 seconds.
- 20th November 2006A 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.
- 21st November 2006An array named temps holds 12 values. State the index of the first item and the index of the last item.
- 22nd November 2006A mono sound clip has a sample rate of 4000 Hz and lasts 2 seconds. Calculate the total number of samples taken.
- 23rd November 2006State the type of program that is typically stored in ROM.
- 24th November 2006State one reason a small business might choose to use open source software instead of proprietary (closed source) software.
- 25th November 2006A FOR loop runs: total = 0, FOR i = 1 TO 4, total = total + i, NEXT i. State the value of total after the loop finishes.
- 26th November 2006State the key difference between a procedure and a function.
- 27th November 2006State the typical maximum capacity of a single-layer DVD.
- 28th November 2006State the difference between HTTP and HTTPS, and give one situation where HTTPS is essential.
- 29th November 2006State what is meant by a syntax error.
- 30th November 2006Give one advantage of a relational database over a flat-file database.