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1.
when two variables are logically compared , the logic gate that tests the equivalence is ___
- A. XNOR
- B. XNOR
- C. XNOR
- D. XNOR
Answer: Option B
Explanation:
This explains why "EQ" is often called "XNOR" in the combinational logic of circuit engineers, since it is the negation of the XOR operation; "NXOR" is a less commonly used alternative.
Another rationalization of the admittedly circuitous name "XNOR" is that one begins with the "both false" operator NOR and then adds the eXception "or both true".
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