All concepts are clear in my head

I was quite weak in the topics of the Wireless Overview and Features and Meraki overview and features. I did not know how to resolve the doubts that I encountered in them while studying. Then someone asked me to attempt as many questions as possible on these topics to help resolve the doubts. Hence, I opted for the practice questions online on nwexam. These 500-560 simulated question bank online questions are taken from all the topics hence there is revision of all the concepts together.