At the end of October, I passed the RHCE exam here in Germany. It was a very pleasant experience and I used the book “RHCSA/RHCE Red Hat Linux Certification Study Guide (Exams EX200 & EX300)” from Michael Jang for preparation.
On 1072 pages, Jung covers all the objectives of both the RHCSA and RHCE exams. Furthermore he dives in a little bit deeper on most topics – so if the objectives change, there’s a good chance that you might still be prepared adequately.
This book helped me to prepare, although I found it very disturbing that it is not organized by moving from one objective to another, but it is structured in topic groups. This makes it a little bit hard to extract all the useful information and link it with the single objectives.
Basically, the language used and the style of the author made this book easy to understand, even for non native speakers. The chapters are well crafted; all of them first tell you what it is about, then they show step by step how it can be achieved.
What I found most useful were the hints how to obtain important information during the RHCE exam. As you might know, you are not allowed to access the Internet during the exam. However, the available Red Hat repo contains a few packages with guides and useful information. If you install those packages you should be able to read even extensive manuals covering exam tasks.
Now if you are wondering if you should visit an official Red Hat training or buy this book instead I do not have an answer for you. I didn’t visit any training at all and just practiced for the exam, but that doesn’t mean that this is the right way for you.
If you are able to read and learn by yourself and do not need a teacher to tell you the stuff you could also obtain by reading a book, Michael Jung’s work might just be the right thing for you. But don’t rely on reading the book only – also practice and try to search the Internet for RHCE study guides.
My summary: Michael Jung’s book is great for self-studies, but should be only one part of your preparations. You can do nothing wrong by buying this book!