Question

Let A: “010101”, B=?, If { A (Ex-or) B } is a resultant string of all ones then which of the following statement regarding B is correct?

(a) B is negation of A

(b) B is 101010

(c) {A (and) B} is a resultant  string having all zeroes

(d) All of the mentioned

The question was asked in my homework.

Question is taken from Logic and Bit Operations in section The Foundation: Logics and Proofs of Discrete Mathematics

Answer 1

Right option is (d) All of the mentioned

To explain I would say: In Ex-or both if both the inputs are the same then output is 0 otherwise 1.