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    Question

    Which of the following is not a valid rule of XOR?

    A 0 XOR 0 = 0 Correct Answer Incorrect Answer
    B 1 XOR 1 = 1 Correct Answer Incorrect Answer
    C 1 XOR 0 = 1 Correct Answer Incorrect Answer
    D B XOR B = 0 Correct Answer Incorrect Answer

    Solution

    XOR gate only returns 1 as the output when both inputs are different and in every other case, it returns 0.

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