This reference provides in-depth technical information on Mac OS X and Mac OS X Server's directory services architecture. System administrators and IT professionals will learn the details of how to deploy Mac OS X and Mac OS X Server within a multiplatform, heterogeneous environment, with an emphasis on integrating user accounts and authentication processes. This book is a perfect study aid for the Directory Services exam, and also serves as an in-depth technical reference for experienced system administrators and engineers. This reference follows the learning objectives of the Directory Services exam, which is one requirement toward the Apple Certified System Administrator (ACSA) certification, Apple's highest level of IT certification. Chapter tests reinforce the knowledge gained along the way.