Daily Practice · GCSE Computer Science
March 1954 5-a-day
Every sheet in March 1954
The same date always regenerates the same five questions, so a sheet you print today is the sheet a classmate prints tomorrow.
- 1st March 1954State what is meant by a syntax error.
- 2nd March 1954A 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.
- 3rd March 1954What type of utility software reorganises files on a hard disk so fragmented parts are stored closer together?
- 4th March 1954Calculate the maximum number of comparisons required by a binary search on a sorted list of 512 items.
- 5th March 1954Given P = 0 and Q = 1, state the value of P OR Q.
- 6th March 1954Convert the hexadecimal number FF to an 8-bit binary number.
- 7th March 1954A network administrator is connecting 10 computers in a server room. Calculate the number of cables needed for a full mesh topology, and state the number needed for a star topology with one central switch.
- 8th March 1954Explain why an interpreter is often preferred while a program is being written.
- 9th March 1954Convert the 4-bit binary number 1101 to denary.
- 10th March 1954Two CPUs are compared for a task optimised for multiple cores: CPU A has 2 cores at 4.2 GHz; CPU B has 6 cores at 3.0 GHz. Explain which CPU is likely to perform better for this task.
- 11th March 1954State why an organisation might employ penetration testers to test its network.
- 12th March 1954A 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.
- 13th March 1954State one example of a file format that commonly uses lossy compression.
- 14th March 1954State how many bits are in one byte, and how many bytes are in one kibibyte (KiB).
- 15th March 1954State whether the source code of proprietary (closed source) software is normally available for the public to view.
- 16th March 1954Write one line of pseudocode that converts the string stored in heightInput into a real number and stores it in a variable called height.
- 17th March 1954State the correct order of the three operations used to read data from a text file.
- 18th March 1954Order these units of data from smallest to largest: megabyte, byte, gigabyte, kilobyte.
- 19th March 1954State the layer that IP operates in, and describe its job.
- 20th March 1954Give one example of erroneous test data for a field that only accepts whole numbers from 1 to 10.
- 21st March 1954A 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.
- 22nd March 1954Each pair from the previous question is stored using 2 bytes. Calculate the compression ratio achieved, given the uncompressed row (1 byte per pixel) uses 8 bytes.
- 23rd March 1954Which flowchart symbol shape is used to represent a decision point (e.g. a yes/no branch)?
- 24th March 1954State the two values a Boolean data type can hold.
- 25th March 1954Convert the denary number 200 to hexadecimal, showing your working.
- 26th March 1954Calculate the number of cables needed to connect 8 computers in a full mesh topology, where every computer connects directly to every other computer.
- 27th March 1954Describe what syntax highlighting is and how it helps a programmer.
- 28th March 1954Convert the hexadecimal number 1A to denary.
- 29th March 1954Convert the denary number 156 to an 8 bit binary number.
- 30th March 1954Which type of malware can replicate itself and spread across a network without attaching to another program or needing a user to run it?
- 31st March 1954Trace 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).