An organization has a class C network and wishes to from subnet for 32 departments. The subnet mask would be:-
I think in the question along with subnet they should also ask no of hosts in each subnet then it would be more clear.
yes, we can prefer b also as subnet mask, due to our requirement is 32 subnets and it gives us 64 subnets, which satisfies us... but there is a better option which will give exactly 32 subnets, then it is preferrable !
Ans is A