Difficulty: Easy
Correct Answer: Incorrect
Explanation:
Introduction / Context:
Truth tables are core to digital logic because they map input combinations to the resulting output. Misstating the direction of dependency causes conceptual errors in design and debugging.
Given Data / Assumptions:
Concept / Approach:
The output is a function of the inputs. A valid truth table shows output for each input pattern; it does not show inputs responding to output states.
Step-by-Step Solution:
1) Define the gate (e.g., AND, OR, NAND, NOR).2) List all input combinations in rows.3) Compute the output for each row by the gate’s rule.4) Conclude that the statement reversing input/output dependency is incorrect.
Verification / Alternative check:
Check any standard logic text: outputs are determined by inputs, not vice versa.
Why Other Options Are Wrong:
“Correct” contradicts the definition; limiting the claim to NAND or equal inputs has no basis.
Common Pitfalls:
Thinking of logic in reverse causality; assuming symmetry where none exists.
Final Answer:
Incorrect
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