Daily Practice · GCSE Computer Science
June 1992 - GCSE Computer Science 5-a-day
Every sheet in June 1992
The same date always regenerates the same five questions, so a sheet you print today is the sheet a classmate prints tomorrow.
- 1st June 1992Explain why an interpreter is often preferred while a program is being written.
- 2nd June 1992An 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.
- 3rd June 1992Which CPU register holds the address of the next instruction to be fetched?
- 4th June 1992Distinguish between the network security threats known as phishing and pharming.
- 5th June 1992A 2D array grid is declared as grid[4][6]. State how many rows and columns it has and how many elements it holds in total.
- 6th June 1992A row of pixels is encoded using run-length encoding as: 3W 4B 3W. State the original row of pixels it represents.
- 7th June 1992A photo file is 3.5 MB in size. Calculate its size in kilobytes (KB). Use 1 MB = 1000 KB.
- 8th June 1992A 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.
- 9th June 1992State the most appropriate data type for storing a person's shoe size if only whole sizes (e.g. 7, 8, 9) are allowed.
- 10th June 1992Give one specific way this code could be refined without changing what it does: a = 5, b = 3, c = a + b, PRINT c
- 11th June 1992Give one example of an optical secondary storage device.
- 12th June 1992State the layer that IP operates in, and describe its job.
- 13th June 1992State the term used for realistic data that a program would be expected to handle during normal use.
- 14th June 1992A 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.
- 15th June 1992State the difference between lossy and lossless compression.
- 16th June 1992State the condition that must be met before a binary search can be used on an array.
- 17th June 1992A 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.
- 18th June 1992Convert the hexadecimal number FF to an 8-bit binary number.
- 19th June 1992Which piece of network hardware connects a LAN to another network such as the internet, directing data packets based on IP address?
- 20th June 1992Describe what syntax highlighting is and how it helps a programmer.
- 21st June 1992Convert the denary number 45 to hexadecimal.
- 22nd June 1992What does the acronym CPU stand for?
- 23rd June 1992State what the term malware means.
- 24th June 1992Trace this algorithm with data = [4, 9, 2, 9, 7] and state the final output. total = 0; count = 0; for i = 0 to 4: if data[i] > 5 then total = total + data[i] and count = count + 1; next i; print(total, count).
- 25th June 1992An 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).
- 26th June 1992Which of RAM and ROM is volatile, meaning its contents are lost when the power is removed?
- 27th June 1992Which piece of UK legislation controls how organisations must store and use people's personal data?
- 28th June 1992Given x = 5 and y = 8, state whether x < y AND x > 0 evaluates to True or False.
- 29th June 1992State the correct order of the three operations used to read data from a text file.
- 30th June 1992Give one reason why RAM on its own is not enough, and a computer also needs secondary storage.