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AQA · GCSE · Computer Science · Higher

Logic-gate truth-table matching

Q07.1 1 mark

Figure 4 shows a logic gate.

Figure 4
Figure 4

Figure 4

Enlarged question image

Figure 4

Which truth table matches the logic gate in Figure 4?

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Marking points

  1. 1 Selects the complete printed option C truth table.

Why this answer loses marks

I matched the truth table using only one input row.

Several gates can agree on one case; the selected table must match the gate for every input combination.

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