Die im Buch behandelten Themen sind in der Prüfung von Oracle nur gering vertreten. Manche Prüfungsthemen wie z.B. Anti-Pattern kommen im Buch gar nicht vor. Sollte es mal eine Übereinstimmung zwischen Buch und Prüfung gegeben haben, so ist das bestimmt schon länger her.
The book contains many multiple choise questions. The answers together with the questions are found at the end of the book and includes the reasons. First, some answer seems to be just not correct (at least without much more context which is not provided). Second, the resons are follow the template "Answer A is correct because it matches the question, Answer B is not correct because it does not fit to the question". Such reasons are in most cases not helpful. What is missing is a good explaination of the a answer for exmaple by referring to the definition and for topic with several examples. But all these things are not found and either the author was too lazy to provide this or (based on the questionable answer) did not understood the topic himself but simply compied the answer from somewhere. This book might help you to pass the test but the knowledge you get with this book is close to zero.