Daily Practice · GCSE Computer Science
March 2002 - GCSE Computer Science 5-a-day
Every GCSE Computer Science sheet published in March 2002, with answers. Systems, data representation, networks, algorithms and programming.
Every sheet in March 2002
The same date always regenerates the same five questions, so a sheet you print today is the sheet a classmate prints tomorrow.
- 1st March 2002Which piece of UK legislation controls how organisations must store and use people's personal data?
- 2nd March 2002Given x = 5 and y = 8, state whether x < y AND x > 0 evaluates to True or False.
- 3rd March 2002A function is defined as: FUNCTION addTax(price) RETURN price x 1.2 ENDFUNCTION. Another line of code runs: total <- addTax(20) + addTax(30). Trace both function calls and state the final value of total.
- 4th March 2002Give one reason why RAM on its own is not enough, and a computer also needs secondary storage.
- 5th March 2002State the difference between HTTP and HTTPS, and give one situation where HTTPS is essential.
- 6th March 2002A password field requires between 6 and 12 characters. State two boundary data values that should be used to test this field.
- 7th March 2002A table called staff has fields staffId, name, department and salary, storing these records: staffId | name | department | salary, 1 | Ben | Sales | 24000, 2 | Chloe | IT | 31000, 3 | Dan | Sales | 27000. State which staffId(s) would be returned by: SELECT staffId FROM staff WHERE department = 'Sales' AND salary > 25000;
- 8th March 2002State one function carried out by the operating system of a computer.
- 9th March 2002In computational thinking, what is meant by the term 'decomposition'?
- 10th March 2002Given A = 1 and B = 1, state the value of A AND B.
- 11th March 2002Convert the 8-bit binary number 01011010 to denary.
- 12th March 2002Define a peer-to-peer network.
- 13th March 2002State why a program written in a high level language must be translated.
- 14th March 2002Convert the denary number 5 to a 4-bit binary number.
- 15th March 2002A CPU has a clock speed of 4.0 GHz. Calculate how many clock cycles it completes in 2 seconds.
- 16th March 2002A 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.
- 17th March 2002Describe what a nested loop does when it processes a 2D array.
- 18th March 2002A mono sound clip has a sample rate of 4000 Hz and lasts 2 seconds. Calculate the total number of samples taken.
- 19th March 2002State the type of program that is typically stored in ROM.
- 20th March 2002State one reason a small business might choose to use open source software instead of proprietary (closed source) software.
- 21st March 2002A FOR loop runs: total = 0, FOR i = 1 TO 4, total = total + i, NEXT i. State the value of total after the loop finishes.
- 22nd March 2002Write the pseudocode header and body for a function called isAdult that takes one integer parameter called age and returns True if age is 18 or over.
- 23rd March 2002State the typical maximum capacity of a single-layer DVD.
- 24th March 2002Give two reasons why network communication is divided into layers.
- 25th March 2002State what is meant by a syntax error.
- 26th March 2002State what a foreign key is used for.
- 27th March 2002What type of utility software reorganises files on a hard disk so fragmented parts are stored closer together?
- 28th March 2002Calculate the maximum number of comparisons required by a binary search on a sorted list of 512 items.
- 29th March 2002Given P = 0 and Q = 1, state the value of P OR Q.
- 30th March 2002A pseudocode algorithm is: count <- 0, x <- 10, WHILE x > 0, count <- count + 1, x <- x - 3, ENDWHILE, OUTPUT count. Complete a trace table for x and count, laid out as x | count, then state the value output.
- 31st March 2002A network administrator is connecting 10 computers in a server room. Calculate the number of cables needed for a full mesh topology, and state the number needed for a star topology with one central switch.