I looked into that once and came up empty. You can't really punish
someone for being stupid. I had a few interviews where I knew the askee
was incorrect and I proved it, which only made them dislike me more and
reject me. I viewed it as a win, because I don't want to work for a
supervisor that A) Does not respect and consider my opinion given my
experience B) Takes personal offense when proven wrong
I really expected bonus points if anything!
The person in question made such an issue out of it that I started a
little search and made some calls to see what recourse someone had. I
came up empty.
I assume online tests are no different than in person tests. Someone
somewhere in the company decided it was good enough and if they won't
accept your pointing out otherwise, what can you do?