''Sun Certified Enterprise Architect for J2EE Technology Study Guide'' is the title of a book by Mark Cade and Simon Roberts.

ISBN 0-13-044916-4
http://www.sun.com/books/catalog/cade/index.html

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The first officially authorized study guide for the challenging SunCertifiedEnterpriseArchitect for Java 2 Platform, Enterprise Edition exams. 

Java platform experts Cade and Roberts provide expert guidance and background for designing effective J2eetmTechnologyArchitectures - as well as comprehensive preparation for every exam element: multiple-choice exam, assignment, and essay.
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Where is the errata?  Wouldn't you expect it to be at http://www.sun.com/books/catalog/cade/index.html ?

The book was published in 2002.  So, it may be too soon for an errata.

Perhaps this page could serve in that fashion for now?  

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Compare the sample questions in the book with what is online at http://suned.sun.com/US/images/certification_archj2ee_07_01.pdf

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See:  IsJavaCertificationWorthIt, CategoryJavaPlatform, JavaTwoEnterpriseEdition