CCNA Exam Certification Guide (CCNA Exam 640-407)
The CCNA exam is all about internetworking, with emphasis on the role routers play in sending packets back and forth among networks. Since the CCNA Exam Certification Guide is published by Cisco Press, it holds to the exam’s focus. After a discussion of the Open Systems Interconnection (OSI) reference model and the mechanics of how each layer operates in an internetworking environment, the author talks about Cisco’s Internetworking Operating System (IOS) and how it does its job, presenting information about setting up, configuring, and managing IOS along the way. Author Wendell Odom goes on to discuss networking protocols (especially TCP/IP) and the telecommunications technologies for connecting the nodes of a wide area network (WAN).
The book presents the CCNA material in sections. This approach allows you to work through Cisco’s stated objectives for the exam one at a time, consecutively, or by only shoring up on weak spots. A quiz program on the companion CD-ROM offers extra drilling in problem areas.
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