Ok so the cost of your exam is not cheap. If you use the info. in this book you will fail. I suggest getting another book. The questions that this book has are helpfull, just dont pay attention to the answers in this book. There are several wrong answers in this book. I mean how do you write a book where you ask the reader hundereds of questions, provide multiple choice, and true false answers, and then give the wrong answer to your own question? This book will missguide you. I suggest buying another book! If you do buy this book, pay no attention to the answers. use the book only for the questions, and find the answers in the code book yourself. I promise, you will find several problems. I found over 15 wrong answers throughout the book before I decided to quit useing the book in it's intended context. I did pass my Masters exam the second time I took the test, without the help of the wrong answers in this book. if I could I would demand my money back! as a matter of fact I will be looking into that. I guess from the publisher or the author. Good luck on the test.