A Level Computer Science 9618, topic 3.2
Logic Gates and Logic Circuits: past paper questions
21 Cambridge A Level Computer Science 9618 questions on Logic Gates and Logic Circuits (3.2) from 21 papers, 2023 to 2026. Open the paper or try a question free.
Practising builds a set from this topic, free with an account. One question opens straight away, with no account.
- Questions
- 21
- Papers
- 21
- Years
- 2023 to 2026
- Total marks
- 85
- Average per question
- 4 marks
- Largest question
- 6 marks
By type: Structured 21
How hard the questions are
- Recall0
- Apply19
- Analyse2
- Not banded0
Derived from the command word Cambridge prints in each question, banded by a fixed table beside the syllabus's own definitions. A question printing no command word is unbanded: unknown, not middling.
Command words
- completeApply14 questions
add information to an incomplete diagram or table
- drawApply11 questions
draw a line to match a term with a description
- writeRecall10 questions
write an answer in a specific way
- describeApply3 questions
state the points of a topic / give characteristics and main features
- considerAnalyse1 question
review and respond to given information
- explainAnalyse1 question
set out purposes or reasons / make the relationships between things clear / say why and/or how and support with relevant evidence
- identifyRecall1 question
name/select/recognise
- stateRecall1 question
express in clear terms
Where the questions come from
By year
- 20263
- 20256
- 20246
- 20236
By session
- May/June12
- Oct/Nov9
By paper
- Paper 121
Questions on this topic
Showing 16 of 21, spread across the years. Open one to write your answer and have it marked.
- Try this questionQuestion 6May/June 2026, paper 11Structured4 marksHas a diagram
Write the logic expressions for the following logic circuit.
- Try this questionQuestion 3Oct/Nov 2025, paper 11Structured4 marks
Draw a logic circuit for the logic expression: X = NOT ((A NAND B) XOR (NOT A OR NOT C))
- Try this questionQuestion 5Oct/Nov 2024, paper 11Structured6 marks
A security system has both a floodlight (very bright light) and an audio alarm. The data from multiple sensors is analysed and used to: • turn on the floodlight • sound the audio alarm.
- Try this questionQuestion 4Oct/Nov 2023, paper 11Structured4 marks
Complete the truth table for the logic expression:
- Try this questionQuestion 8May/June 2026, paper 12Structured3 marksHas a diagram
Complete the truth table for the given logic circuit.
- Try this questionQuestion 9Oct/Nov 2025, paper 12Structured4 marksHas a diagram
Consider the following logic circuit: Write the logic expression for the logic circuit.
- Try this questionQuestion 1Oct/Nov 2024, paper 12Structured4 marks
Complete the truth table for the logic expression:
- Try this questionQuestion 4Oct/Nov 2023, paper 12Structured5 marksHas a diagram
Write the Boolean expression that corresponds to the following logic circuit.
- Try this questionQuestion 3Oct/Nov 2025, paper 13Structured4 marks
Complete the truth table for the following logic expression:
- Try this questionQuestion 1Oct/Nov 2024, paper 13Structured5 marksHas a diagram
Describe the operation of a 2-input XOR gate.
- Try this questionQuestion 4Oct/Nov 2023, paper 13Structured4 marks
Complete the truth table for the logic expression: Y = ((P AND Q) XOR ((NOT Q) OR R)) AND NOT P
- Try this questionQuestion 1May/June 2024, paper 11Structured3 marks
Tick (✓) one box to identify the correct logic statement for this truth table.
- Try this questionQuestion 5May/June 2023, paper 11Structured4 marks
Draw the logic circuit for this logic expression:
- Try this questionQuestion 1May/June 2024, paper 12Structured6 marks
Describe the operation of each of the following logic gates: NAND .......................................................................................................................................
- Try this questionQuestion 6May/June 2023, paper 12Structured4 marks
Draw the logic circuit for this logic expression: Z = (R XOR S) AND (NOT T NOR P)
- Try this questionQuestion 6May/June 2024, paper 13Structured3 marks
Each of the following truth tables has three inputs (A, B and C) and one output (X). Draw one line to match each truth table with its logic expression.