Studying for MB2-701 Exam- Found a practice test book, but is it any good?

I was looking at this book: 

http://www.amazon.co.uk/Microsoft-MB2-701-Exam-Extending-Dynamics-ebook/dp/B00SXPJD8Y/ref=sr_1_1?ie=UTF8&qid=1427804357&sr=8-1&keywords=dynamics+crm+exam

I am wondering if the questions are too basic? They seem like it. I do remember seeing another user post some sample MB2-701 questions and they were more advanced.

Do the questions look official?