Which of the following is not a valid rule of XOR?
2008
Which of the following is not a valid rule of XOR?
- A.
0 XOR 0 = 0
- B.
1 XOR 1 = 1
- C.
1 XOR 0 = 1
- D.
B XOR B = 0
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Correct answer: B
XOR (Exclusive OR) logic produces an output of 1 only when the inputs differ. When both inputs are identical, such as 1 XOR 1 or 0 XOR 0, the output is always 0. Therefore, any rule claiming that 1 XOR 1 equals 1 is invalid.
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