100% complete coverage of all official objectives for exam 640-822: Exam Readiness Checklist at the front and back of the book - you're ready for the exam when all objectives on the list is checked offInside test section in each chapter highlight key exam topics coveredSimulated exam questions in accordance with the format, tone, topics, and difficulty in real exam CCENT exam covering all topics, including: OSI Reference Model TCP / IP and Network Media Ethernet Switching Device Standard IP Routing Addressing Subnetting IP Address Configuration Files Cisco IOS and CLI Switch Router Configuration and WAN and WLAN Applications, Security, and Troubleshooting CD-ROM includes: Practice test engine, powered by Boson, featuring: 100 exam practice questions; Detailed answers with explanations, chapter quizzes and real environment test report simulationsScore toolInteractive performance appraisal software simulation network, powered by Boson with video book exercises15 + instructional lab simulation clipsElectronic to learn on leave