Daily Practice · GCSE Computer Science
September 1958 5-a-day
Every sheet in September 1958
The same date always regenerates the same five questions, so a sheet you print today is the sheet a classmate prints tomorrow.
- 1st September 1958Write a loop in pseudocode that outputs every element of a 1D array named names of length 6.
- 2nd September 1958Define the term 'pixel'.
- 3rd September 1958Order these from fastest access speed to slowest: RAM, cache, registers, secondary storage.
- 4th September 1958Which piece of UK legislation makes it a criminal offence to gain unauthorised access to a computer system?
- 5th September 1958Evaluate the expression 23 DIV 4.
- 6th September 1958A programmer wants any syntax error in their program to be reported before the program starts running at all. State whether a compiler or an interpreter behaves this way, and explain why.
- 7th September 1958A 1 TB hard disk drive costs 40 pounds. A 500 GB solid-state drive costs 60 pounds. Calculate the cost per gigabyte of each device, and state which is cheaper per GB. Use 1 TB = 1000 GB.
- 8th September 1958A 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?
- 9th September 1958A 'quantity' field on a website must only accept whole numbers from 1 to 10. Which validation check identifies that 15 has been entered?
- 10th September 1958A table called bookings has fields bookingId, customerName and eventDate. Write an SQL statement that deletes the booking with bookingId 45.
- 11th September 1958A row of 8 pixels is WWWBBBWW. Use run-length encoding to encode this row as pairs of (colour, run length).
- 12th September 1958An array contains [9, 2, 6], to be sorted using insertion sort. Show the state of the array after each new element has been inserted into its correct position.
- 13th September 1958Complete: NOT 0 = ?
- 14th September 1958Convert the denary number 39 to an 8-bit binary number, showing your working.
- 15th September 1958State what LAN stands for.
- 16th September 1958Name the translator used for assembly language and describe how it differs from a compiler.
- 17th September 1958An 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.
- 18th September 1958Which CPU register holds the address of the next instruction to be fetched?
- 19th September 1958Distinguish between the network security threats known as phishing and pharming.
- 20th September 1958Explain what happens if a program tries to read index 5 of an array declared with 5 elements.
- 21st September 1958A row of pixels is encoded using run-length encoding as: 3W 4B 3W. State the original row of pixels it represents.
- 22nd September 1958A photo file is 3.5 MB in size. Calculate its size in kilobytes (KB). Use 1 MB = 1000 KB.
- 23rd September 1958A 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.
- 24th September 1958State the most appropriate data type for storing a person's shoe size if only whole sizes (e.g. 7, 8, 9) are allowed.
- 25th September 1958Give one specific way this code could be refined without changing what it does: a = 5, b = 3, c = a + b, PRINT c
- 26th September 1958Give one example of an optical secondary storage device.
- 27th September 1958Define the term protocol.
- 28th September 1958State the term used for realistic data that a program would be expected to handle during normal use.
- 29th September 1958A 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.
- 30th September 1958State the difference between lossy and lossless compression.