So, the mask is $2$ or $010_2$.
$$ \beginaligned & 101 \ \oplus & 010 \ \hline & 111 \ \endaligned $$ mask to transform exclusive
Thus, $5 \oplus 2 = 7$. This shows how a mask can be used to transform one number into another through XOR. The concept of a "mask to transform exclusive" relates closely to using bit manipulation and Boolean algebra to achieve specific transformations, particularly through XOR operations. By understanding how masks work and applying properties of Boolean operations, you can achieve transformations that result in exclusive outcomes. So, the mask is $2$ or $010_2$