Daily Practice · GCSE Computer Science
June 2017 - GCSE Computer Science 5-a-day
Every GCSE Computer Science sheet published in June 2017, with answers. Systems, data representation, networks, algorithms and programming.
Every sheet in June 2017
The same date always regenerates the same five questions, so a sheet you print today is the sheet a classmate prints tomorrow.
- 1st June 2017Name the four layers of the TCP/IP model in order from the one closest to the user.
- 2nd June 2017State the term used for realistic data that a program would be expected to handle during normal use.
- 3rd June 2017A 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.
- 4th June 2017State the difference between lossy and lossless compression.
- 5th June 2017State the condition that must be met before a binary search can be used on an array.
- 6th June 2017A 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.
- 7th June 2017Convert the hexadecimal number FF to an 8-bit binary number.
- 8th June 2017Which piece of network hardware connects a LAN to another network such as the internet, directing data packets based on IP address?
- 9th June 2017A 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.
- 10th June 2017Convert the denary number 45 to hexadecimal.
- 11th June 2017What does the acronym CPU stand for?
- 12th June 2017State what the term malware means.
- 13th June 2017An array named temps holds 12 values. State the index of the first item and the index of the last item.
- 14th June 2017An 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).
- 15th June 2017Which of RAM and ROM is volatile, meaning its contents are lost when the power is removed?
- 16th June 2017Which piece of UK legislation controls how organisations must store and use people's personal data?
- 17th June 2017Given x = 5 and y = 8, state whether x < y AND x > 0 evaluates to True or False.
- 18th June 2017State the correct order of the three operations used to read data from a text file.
- 19th June 2017Give one reason why RAM on its own is not enough, and a computer also needs secondary storage.
- 20th June 2017State the difference between HTTP and HTTPS, and give one situation where HTTPS is essential.
- 21st June 2017A password field requires between 6 and 12 characters. State two boundary data values that should be used to test this field.
- 22nd June 2017A 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.
- 23rd June 2017State one function carried out by the operating system of a computer.
- 24th June 2017In computational thinking, what is meant by the term 'decomposition'?
- 25th June 2017Given A = 1 and B = 1, state the value of A AND B.
- 26th June 2017Convert the denary number 200 to hexadecimal, showing your working.
- 27th June 2017Define a peer-to-peer network.
- 28th June 2017State why a program written in a high level language must be translated.
- 29th June 2017Convert the denary number 5 to a 4-bit binary number.
- 30th June 2017A CPU has a clock speed of 4.0 GHz. Calculate how many clock cycles it completes in 2 seconds.