Comment Re:They're worthless. (Score 1) 213
Maybe. Maybe not.
In my experience the tests "test" you on your knowledge of how the VENDOR would like you to "solve" a "problem".
I haven't seen any test were there is something objectively "wrong" about any of the questions or answers.
But I have seen a lot of questions and answers that are phrased somewhat inaccurately for someone with more experience than just the vendor's training materials.
So if you know the subject, a quick read of the vendor's materials should tell you where the "tricky" areas are. But if you want to skip that step, you should be able to pass most certifications without a problem.