Distribution of Difficulty of L3 questions

Except for the straightforward list of disadvantages/advantages, most of the questions are fair, which means a median candidate may finish it in the given time, IMO.

These fair questions look not very hard or even easy, but it becomes extremely hard for a short time! If not read careful, there are traps. I’m sure we have learnt enough in knowledge, it’s time to find/maintain the good sense for the real exam. Any good exam-tips to share?