Daily Practice · GCSE Computer Science
June 2007 - GCSE Computer Science 5-a-day
Every GCSE Computer Science sheet published in June 2007, with answers. Systems, data representation, networks, algorithms and programming.
Every sheet in June 2007
The same date always regenerates the same five questions, so a sheet you print today is the sheet a classmate prints tomorrow.
- 1st June 2007A photo file is 3.5 MB in size. Calculate its size in kilobytes (KB). Use 1 MB = 1000 KB.
- 2nd June 2007A 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.
- 3rd June 2007State the most appropriate data type for storing a person's shoe size if only whole sizes (e.g. 7, 8, 9) are allowed.
- 4th June 2007Give one specific way this code could be refined without changing what it does: a = 5, b = 3, c = a + b, PRINT c
- 5th June 2007Give one example of an optical secondary storage device.
- 6th June 2007Explain the role of TCP when a large file is downloaded.
- 7th June 2007State the term used for realistic data that a program would be expected to handle during normal use.
- 8th June 2007A 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.
- 9th June 2007State the difference between lossy and lossless compression.
- 10th June 2007State the condition that must be met before a binary search can be used on an array.
- 11th June 2007A 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.
- 12th June 2007Convert the hexadecimal number FF to an 8-bit binary number.
- 13th June 2007Which piece of network hardware connects a LAN to another network such as the internet, directing data packets based on IP address?
- 14th June 2007Give one advantage and one disadvantage of using a compiler.
- 15th June 2007Convert the denary number 45 to hexadecimal.
- 16th June 2007What does the acronym CPU stand for?
- 17th June 2007State what the term malware means.
- 18th June 2007Write a loop in pseudocode that outputs every element of a 1D array named names of length 6.
- 19th June 2007An 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).
- 20th June 2007Which of RAM and ROM is volatile, meaning its contents are lost when the power is removed?
- 21st June 2007Which piece of UK legislation controls how organisations must store and use people's personal data?
- 22nd June 2007Given x = 5 and y = 8, state whether x < y AND x > 0 evaluates to True or False.
- 23rd June 2007State the correct order of the three operations used to read data from a text file.
- 24th June 2007Give one reason why RAM on its own is not enough, and a computer also needs secondary storage.
- 25th June 2007A 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?
- 26th June 2007A password field requires between 6 and 12 characters. State two boundary data values that should be used to test this field.
- 27th June 2007A 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.
- 28th June 2007State one function carried out by the operating system of a computer.
- 29th June 2007In computational thinking, what is meant by the term 'decomposition'?
- 30th June 2007Given A = 1 and B = 1, state the value of A AND B.