Doubts from all the topics resolved

Secure ESXi, vCenter Server, and vSphere Virtual Machines topic was quite complex. So when i began practicing on the 2V0-621 question bank, i used to skip the questions from these topics. But then someone told me to at least go through them and prepare. I did that and i was able to resolve the doubts in the topic just before the final VCP6-DCV certification exam.