Daily Practice · GCSE Computer Science
April 2024 - GCSE Computer Science 5-a-day
Every GCSE Computer Science sheet published in April 2024, with answers. Systems, data representation, networks, algorithms and programming.
Every sheet in April 2024
The same date always regenerates the same five questions, so a sheet you print today is the sheet a classmate prints tomorrow.
- 1st April 2024State what LAN stands for.
- 2nd April 2024Name the translator used for assembly language and describe how it differs from a compiler.
- 3rd April 2024An 8-bit register stores the value 01100000 (denary 96). State the resulting 8-bit binary value after a left shift by 1 place, and state whether an overflow occurs.
- 4th April 2024Which CPU register holds the address of the next instruction to be fetched?
- 5th April 2024Distinguish between the network security threats known as phishing and pharming.
- 6th April 2024Explain what happens if a program tries to read index 5 of an array declared with 5 elements.
- 7th April 2024A row of pixels is encoded using run-length encoding as: 3W 4B 3W. State the original row of pixels it represents.
- 8th April 2024A photo file is 3.5 MB in size. Calculate its size in kilobytes (KB). Use 1 MB = 1000 KB.
- 9th April 2024A 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.
- 10th April 2024State the most appropriate data type for storing a person's shoe size if only whole sizes (e.g. 7, 8, 9) are allowed.
- 11th April 2024Write 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.
- 12th April 2024Give one example of an optical secondary storage device.
- 13th April 2024Define the term protocol.
- 14th April 2024State the term used for realistic data that a program would be expected to handle during normal use.
- 15th April 2024State what a foreign key is used for.
- 16th April 2024State the difference between lossy and lossless compression.
- 17th April 2024State the condition that must be met before a binary search can be used on an array.
- 18th April 2024A 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.
- 19th April 2024A 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.
- 20th April 2024Which piece of network hardware connects a LAN to another network such as the internet, directing data packets based on IP address?
- 21st April 2024Explain the purpose of a breakpoint.
- 22nd April 2024Convert the denary number 45 to hexadecimal.
- 23rd April 2024What does the acronym CPU stand for?
- 24th April 2024State what the term malware means.
- 25th April 2024Explain why a running maximum should be initialised to the first element of the array rather than to 0.
- 26th April 2024An 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).
- 27th April 2024Which of RAM and ROM is volatile, meaning its contents are lost when the power is removed?
- 28th April 2024Which piece of UK legislation controls how organisations must store and use people's personal data?
- 29th April 2024Given x = 5 and y = 8, state whether x < y AND x > 0 evaluates to True or False.
- 30th April 2024State the value returned by LENGTH(word) if word stores the string 'Computer'.