Daily Practice · GCSE Computer Science
June 2002 - GCSE Computer Science 5-a-day
Every GCSE Computer Science sheet published in June 2002, with answers. Systems, data representation, networks, algorithms and programming.
Every sheet in June 2002
The same date always regenerates the same five questions, so a sheet you print today is the sheet a classmate prints tomorrow.
- 1st June 2002Explain what happens if a program tries to read index 5 of an array declared with 5 elements.
- 2nd June 2002A row of pixels is encoded using run-length encoding as: 3W 4B 3W. State the original row of pixels it represents.
- 3rd June 2002A photo file is 3.5 MB in size. Calculate its size in kilobytes (KB). Use 1 MB = 1000 KB.
- 4th June 2002A streaming company records which shows each user watches and uses this to recommend similar shows. Explain one ethical concern this could raise, even if the company only uses the data to improve recommendations.
- 5th June 2002State the most appropriate data type for storing a person's shoe size if only whole sizes (e.g. 7, 8, 9) are allowed.
- 6th June 2002Give one specific way this code could be refined without changing what it does: a = 5, b = 3, c = a + b, PRINT c
- 7th June 2002Give one example of an optical secondary storage device.
- 8th June 2002Define the term protocol.
- 9th June 2002State the term used for realistic data that a program would be expected to handle during normal use.
- 10th June 2002A table called members has fields memberId, firstName, lastName and joinYear. Write an SQL statement that adds a new record with memberId 12, firstName 'Priya', lastName 'Shah' and joinYear 2026.
- 11th June 2002State the difference between lossy and lossless compression.
- 12th June 2002State the condition that must be met before a binary search can be used on an array.
- 13th June 2002A logic circuit has inputs C and D. C feeds into a NOT gate; the output of the NOT gate and D feed into an OR gate, giving output Y. Write the Boolean expression for Y and state its value when C = 1 and D = 0.
- 14th June 2002Convert the hexadecimal number FF to an 8-bit binary number.
- 15th June 2002Which piece of network hardware connects a LAN to another network such as the internet, directing data packets based on IP address?
- 16th June 2002Explain the purpose of a breakpoint.
- 17th June 2002Convert the denary number 45 to hexadecimal.
- 18th June 2002What does the acronym CPU stand for?
- 19th June 2002State what the term malware means.
- 20th June 2002Explain why a running maximum should be initialised to the first element of the array rather than to 0.
- 21st June 2002An 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).
- 22nd June 2002Which of RAM and ROM is volatile, meaning its contents are lost when the power is removed?
- 23rd June 2002Which piece of UK legislation controls how organisations must store and use people's personal data?
- 24th June 2002Given x = 5 and y = 8, state whether x < y AND x > 0 evaluates to True or False.
- 25th June 2002State the correct order of the three operations used to read data from a text file.
- 26th June 2002Give one reason why RAM on its own is not enough, and a computer also needs secondary storage.
- 27th June 2002Name the four layers of the TCP/IP model in order from the one closest to the user.
- 28th June 2002A password field requires between 6 and 12 characters. State two boundary data values that should be used to test this field.
- 29th June 2002A table called products has fields productId, name, price and stock. Write an SQL statement that changes the price of the product with productId 7 to 15.99.
- 30th June 2002State one function carried out by the operating system of a computer.