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maybe consider having 6 pints of beer and 4 packets of peanuts to provide the needed muscle relaxation and protein reserves you'll need for hyperspace travel the certification exam.
In all seriousness get logged onto your system and click around. Pay a bit of attention to things inside the SAS Environment Manager, perhaps read the documentation of this part of the system. I sat the PA certification a few years ago so it wasn't in the version I did but I'm told by people who've sat it recently that quite a few of the questions refer to things in the SAS Environment Manager.