Daily Practice · GCSE Computer Science
November 1957 5-a-day
Every sheet in November 1957
The same date always regenerates the same five questions, so a sheet you print today is the sheet a classmate prints tomorrow.
- 1st November 1957A 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.
- 2nd November 1957An 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).
- 3rd November 1957Which of RAM and ROM is volatile, meaning its contents are lost when the power is removed?
- 4th November 1957Which piece of UK legislation controls how organisations must store and use people's personal data?
- 5th November 1957Given x = 5 and y = 8, state whether x < y AND x > 0 evaluates to True or False.
- 6th November 1957A 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 November 1957Give one reason why RAM on its own is not enough, and a computer also needs secondary storage.
- 8th November 1957State the layer that IP operates in, and describe its job.
- 9th November 1957A password field requires between 6 and 12 characters. State two boundary data values that should be used to test this field.
- 10th November 1957A table called bookings has fields bookingId, customerName and eventDate. Write an SQL statement that deletes the booking with bookingId 45.
- 11th November 1957State one function carried out by the operating system of a computer.
- 12th November 1957In computational thinking, what is meant by the term 'decomposition'?
- 13th November 1957Given A = 1 and B = 1, state the value of A AND B.
- 14th November 1957Convert the denary number 39 to an 8-bit binary number, showing your working.
- 15th November 1957Define a peer-to-peer network.
- 16th November 1957Describe what syntax highlighting is and how it helps a programmer.
- 17th November 1957Convert the denary number 5 to a 4-bit binary number.
- 18th November 1957A CPU has a clock speed of 4.0 GHz. Calculate how many clock cycles it completes in 2 seconds.
- 19th November 1957A simple cipher shifts every letter 2 places forward in the alphabet, wrapping around so Y becomes A and Z becomes B. Encrypt the plaintext CAT using this cipher.
- 20th November 1957Trace 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).
- 21st November 1957A mono sound clip has a sample rate of 4000 Hz and lasts 2 seconds. Calculate the total number of samples taken.
- 22nd November 1957State the type of program that is typically stored in ROM.
- 23rd November 1957State one reason a small business might choose to use open source software instead of proprietary (closed source) software.
- 24th November 1957A FOR loop runs: total = 0, FOR i = 1 TO 4, total = total + i, NEXT i. State the value of total after the loop finishes.
- 25th November 1957Give one specific way this code could be refined without changing what it does: a = 5, b = 3, c = a + b, PRINT c
- 26th November 1957State the typical maximum capacity of a single-layer DVD.
- 27th November 1957Explain the role of TCP when a large file is downloaded.
- 28th November 1957State what is meant by a syntax error.
- 29th November 1957A 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 November 1957What type of utility software reorganises files on a hard disk so fragmented parts are stored closer together?