This book is a study guide for any candidate preparing for the new Java EE Web Component Developer exam (Oracle Exam 1ZO-899) . It contains the theory behind how the web container works and important notes, hints and tips on the types of ‘trick’ questions to look for in the exam. By combining logical and easy-to-follow discussions with clear visual aids and diagrams, you will learn how the container works and by the end of the book, you'll be wondering why servlets, JSPs and tag libraries seemed so complicated before. By combining the theory taught in this book with practical experience, you will not only succeed in passing the exam, but will be so confident that you are able to solve problems and draw-up solutions ‘on the job’.