Ebook: Sun Certified Enterprise Architect for Java EE Study Guide (Exam 310-051) (Certification Press)

This book claims "100% coverage" in large font on the cover. Certainly, you shouldn't take that as "read this book and you're done".

This book absolutely does not cover everything that's in the test. It lacks information on Java Server Faces, on Java Messaging Service (it has an entire chapter on JMS, but it lacks specifics that will be on the exam), on Web Services support in JEE, and so on. For those topics that it does cover, this book doesn't explain at introductory level.

That means that this book is no good starter's guide to get introduced to all the relevant themes, nor is it good at providing you with all the details that you need on the topics covered. It gives you an idea of those topics covered by the exam, which is helpful to decide which other books you must read. And nothing more.