Chapter 16, "IP Telephony" This chapter covers how a Catalyst switch can provide power to operate a Cisco IP Phone, how voice traffic can be carried over the links between an IP Phone and a Catalyst switch, QoS for voice traffic, and how to verify that IP Telephony features are functioning properly. Chapter 17, "Securing Switch Access" This chapter covers switch Authentication, Authorization, and Accounting (AAA); port security using MAC addresses; port-based security using IEEE 802.1x; DHCP snooping; and dynamic ARP inspection. Chapter 18, "Securing with VLANs" This chapter covers how to control traffic within a VLAN using access lists, implementing private VLANs, and monitoring traffic on switch ports for security reasons.
Each chapter in the book uses several features to help you make the best use of your time in that chapter. The features are as follows: Assessment Each chapter begins with a "Do I Know This Already?" quiz that helps you determine the amount of time you need to spend studying that chapter. If you intend to read the entire chapter, you can save the quiz for later use. Questions are all multiple-choice, single-answer, to give a quick assessment of your knowledge. Foundation Topics This is the core section of each chapter that explains the protocols, concepts, and configuration for the topics in the chapter. Foundation Summary At the end of each chapter, a Foundation Summary collects key concepts, facts, and commands into an easy-to-review format. A more lengthy "Q&A" section follows, where many review questions are presented. Questions are mainly open-ended rather than multiple choice, as found on the exams. This is done to focus more on understanding the subject matter than on memorizing details. Scenarios Scenarios are collected in the final chapter to allow a much more in-depth examination of a network implementation. Instead of posing a simple question asking for a single fact, the scenarios let you design, configure, and troubleshoot networks (at least on paper) without the clues inherent in a multiple-choice quiz format. CD-based practice exam The companion CD-ROM contains two separate test banksone composed of the questions from the book and an entirely new test bank of questions to reinforce your understanding of the book's concepts. In addition to the multiple-choice questions, you encounter some configuration simulation questions for which you actually perform configurations. This is the best tool for helping you prepare for the actual test-taking process.
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