Not exactly a technical question, but certainly DBA-relevant. Are cert questions acceptable for the site?
So let's take this in parts:
Then no, we can't discuss DBA Certification questions
To be quite a bit more succinct: Those questions, while well-intentioned as objective, are still somewhat subjectively answered (levels of difficulty always are, by their very nature, subjective), and are likely to change over the course of time, as well as potentially violating NDAs, which we don't need to condone here.