To some degree, it's not what you know, but what you can search for and apply. That what docs and google are for. If you are restricted in what data you can access then the certification is devoid from real life.
A lot of times I find problems are resolved by accurately noting symptoms and causes then searching for like problems and there solutions as well as being able to accurately convey to others the problem you have.
Such problem solving skills are a large part of what keeps systems up, as opposed to their initial setup.
Maybe you should not be allowed to ask a question on a support site for certification, but maybe you should be allowed to google?*
*Is "to google" generic yet ;-)