Daily Practice · GCSE Computer Science
February 2003 - GCSE Computer Science 5-a-day
Every GCSE Computer Science sheet published in February 2003, with answers. Systems, data representation, networks, algorithms and programming.
Every sheet in February 2003
The same date always regenerates the same five questions, so a sheet you print today is the sheet a classmate prints tomorrow.
- 1st February 2003What does the acronym CPU stand for?
- 2nd February 2003State what the term malware means.
- 3rd February 2003Write a loop in pseudocode that outputs every element of a 1D array named names of length 6.
- 4th February 2003An 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).
- 5th February 2003Which of RAM and ROM is volatile, meaning its contents are lost when the power is removed?
- 6th February 2003Which piece of UK legislation controls how organisations must store and use people's personal data?
- 7th February 2003Given x = 5 and y = 8, state whether x < y AND x > 0 evaluates to True or False.
- 8th February 2003State the value returned by LENGTH(word) if word stores the string 'Computer'.
- 9th February 2003Give one reason why RAM on its own is not enough, and a computer also needs secondary storage.
- 10th February 2003A 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?
- 11th February 2003A password field requires between 6 and 12 characters. State two boundary data values that should be used to test this field.
- 12th February 2003A 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.
- 13th February 2003State one function carried out by the operating system of a computer.
- 14th February 2003In computational thinking, what is meant by the term 'decomposition'?
- 15th February 2003Given A = 1 and B = 1, state the value of A AND B.
- 16th February 2003State how many different values can be represented using 5 bits, and explain your reasoning.
- 17th February 2003Define a peer-to-peer network.
- 18th February 2003Name the translator used for assembly language and describe how it differs from a compiler.
- 19th February 2003Convert the denary number 5 to a 4-bit binary number.
- 20th February 2003A CPU has a clock speed of 4.0 GHz. Calculate how many clock cycles it completes in 2 seconds.
- 21st February 2003A 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.
- 22nd February 2003Explain what happens if a program tries to read index 5 of an array declared with 5 elements.
- 23rd February 2003A mono sound clip has a sample rate of 4000 Hz and lasts 2 seconds. Calculate the total number of samples taken.
- 24th February 2003State the type of program that is typically stored in ROM.
- 25th February 2003State one reason a small business might choose to use open source software instead of proprietary (closed source) software.
- 26th February 2003A FOR loop runs: total = 0, FOR i = 1 TO 4, total = total + i, NEXT i. State the value of total after the loop finishes.
- 27th February 2003State the key difference between a procedure and a function.
- 28th February 2003State the typical maximum capacity of a single-layer DVD.