The only Apple-certified book on Mac OS X 10.5 Leopard, this comprehensive reference takes support technicians and ardent Mac users deep inside their operating systems, covering everything from networking technologies to system administration, customizing the operating system, command-line programming, and more. Keyed to the learning objectives of the  AppleCertified Technical Coordinator certification exam, the lessons in this self-paced volume serve as a perfect supplement to Apple’s own training class and a first-rate primer for computer support personnel who need to troubleshoot and optimize Mac OS X as part of their jobs. Self-quizzes and chapter tests reinforce the knowledge gained along the way.