Question Constellation Sign up for free AQA · GCSE · Computer Science · Higher
Circuit construction from truth table
Figure 5 shows a truth table.
Complete the logic circuit by writing the name of a logic gate in each empty box.
The completed logic circuit should have the same functionality as the circuit represented by the truth table in Figure 5.
You should write the name of one logic gate only in each box.
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Marking points
- 1 Names box X as AND.
- 2 Names box Y as XOR.
- 3 Names box Z as NOT.
Full-mark answer
X = AND; Y = XOR; Z = NOT.
Why this answer loses marks
I drew logic-gate symbols in the empty boxes.
This response asks for gate names, so correct behaviour shown only as symbols does not satisfy the response instruction.