I took essentials yesterday and passed the practical today (I thought I had the failed the test when I entered the last answer and of course I passed with a 785). Those tests were the most stressful I've taken in my life and taken many hard tests in college.
I wondered quite a bit about was or wasn't on the exams and I think everyone does. The truth is your best bet is to know as much of the material as possible.I don't like writing this because it's exactly what I wouldn't want to read but: There are no shortcuts and the only method that will work is thorough study.
I was probably over prepared but there's nothing wrong with that. I read five books total in last month. Combined with practice tests included with the books and professor's Messer's free videos.
I'm starting a server class and a networking class next week on to network+