In digital electronics, in general, an XOR (exclusive OR) gate is used for which of the following scenarios?
In answers below a signal is high when its value is a logical "1".
only when exactly one of the inputs is high
Outputs a high signal only when the number of high inputs is odd.
To implement the carry out of a full adder
Outputs a high signal when all inputs are high without exception
Outputs a high signal when any one of the inputs is high
To implement the sum of a full adder