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of STP. VLANs, trunks, and troubleshooting are covered as well. EtherChannel technologies, configuration, and verification are also covered. There are hands-on labs, a written lab, and plenty of review questions to help you. Do not even think of skipping the fundamental written and hands-on labs in this chapter!

      Chapter 16: Network Device Management and Security Managing Cisco Devices This chapter describes the boot process of Cisco routers, the configuration register, and how to manage Cisco IOS files. The chapter finishes with a section on Cisco's new licensing strategy for its IOS. Hands-on and written labs, along with review questions, will help you build a strong foundation for the objectives covered in this chapterhow to mitigate threats at the access layer using various security techniques. AAA with RADIUIS and TACACS+, SNMP and HSRP are also covered in this chapter. Don't skip the hands-on labs that are included, as well as a written lab and review questions at the end of the chapter.

      Chapter 17: Enhanced IGRP EIGRP was not covered in the ICND1 (CCENT) chapters, so this is a full chapter on nothing but EIGRP and EIGRPv6. There are lots of examples, including configuration, verification, and troubleshooting labs, with both IP and with IPv6. Great hands-on labs are included, as well as a written lab and review questions.

      Chapter 18: Open Shortest Path First (OSPF) Chapter 9 dives into more complex dynamic routing by covering OSPF routing. The written lab, hands-on labs, and review questions will help you master this vital routing protocol.

      Chapter 19: Multi-Area OSPF The ICND1 (CCENT) portion of this book had a large chapter on OSPF, so before reading this chapter, be sure you have the CCENT objectives down pat with a strong OSPF foundation. This chapter will take off where that ICND1 chapter left off and add multi-area networks along with advanced configurations and then finish with OSPv3. Hands-on labs, a written lab, and challenging review questions await you at the end of the chapter.

      Chapter 20: Troubleshooting IP, IPv6, and VLANs I want to say this is the most important chapter in the book, but that's hard to say. You can decide that yourself when you take the exam! Be sure to go through all the troubleshooting steps for IP, IPv6, and VLANs. The hands-on labs for this chapter will be included in the free bonus material and dynamic labs that I'll write and change as needed. Don't skip the written lab and review questions.

      Chapter 21: Wide Area Networks This is the longest, and last, chapter in the book. It covers multiple protocols in depth, especially HDLC, PPP, and Frame Relay, along with a discussion on many other technologies. Good troubleshooting examples are provided in the PPP and Frame Relay configuration sections, and these cannot be skipped! Hands-on labs meant to focus squarely on the objectives are included at the end of the chapter, as well as a written lab and challenging review questions.

      Chapter 22: Evolution of Intelligent Networks I saved the hardest chapter for last. What makes this chapter challenging is that there is no configuration section to you really need to dive deep into the cloud, APIC-EM and QoS sections with an open and ready mind. I stuck as close to the objectives as possible in order to help you ace the exam. The written lab and review questions are spot on for the objectives.

      Appendix A: Answers to Written Labs This appendix contains the answers to the book's written labs.

      Appendix B: Answers to Chapter Review Questions This appendix provides the answers to the end-of-chapter review questions.

      Appendix C: Disabling and Configuring Network Services Appendix C takes a look at the basic services you should disable on your routers to make your network less of a target for denial of service (DoS) attacks and break-in attempts.

      Be sure to check the announcements section of my forum to find out how to download bonus material I created specifically for this book.

      What's Available Online?

      I have worked hard to provide some really great tools to help you with your certification process. All of the following tools, most of them available at www.wiley.com/go/sybextestprep, should be loaded on your workstation when you're studying for the test. As a fantastic bonus, I was able to add to the download link a preview section from my CCNA video series! Please understand that these are not the full versions, but they're still a great value for you included free with this book.

      Test Preparation Software The test preparation software prepares you to pass the ICND1 and ICND2 exams and the CCNA R/S Composite exam. You'll find all the review and assessment questions from the book plus additional practice exam questions that appear exclusively from the downloadable study tools.

      Electronic Flashcards The companion study tools include over 200 flashcards specifically written to hit you hard, so don't get discouraged if you don't ace your way through them at first! They're there to ensure that you're really ready for the exam. And no worries – armed with the review questions, practice exams, and flashcards, you'll be more than prepared when exam day comes!

      Glossary A complete glossary of CCENT, ICND2, CCNA R/S and Cisco routing terms is available at www.wiley.com/go/sybextestprep.

      Todd Lammle Bonus Material and Labs Be sure to check the announcement section of my forum at www.lammle.com/ccna for directions on how to download all the latest bonus material created specifically to help you study for your ICND1, ICND2, and CCNA R/S exams.

      Todd Lammle Videos I have created a full CCNA series of videos that can be purchased at www.lammle.com/ccna

      How to Use This Book

      If you want a solid foundation for the serious effort of preparing for the Interconnecting Cisco Network Devices Part 1 and 2 exams, or the CCNA R/S Composite exam, then look no further. I've spent hundreds of hours putting together this book with the sole intention of helping you to pass the Cisco exams, as well as really learn how to correctly configure Cisco routers and switches!

      This book is loaded with valuable information, and you will get the most out of your study time if you understand why the book is organized the way it is.

      So to maximize your benefit from this book, I recommend the following study method:

      1. Take the assessment test that's provided at the end of this introduction. (The answers are at the end of the test.) It's okay if you don't know any of the answers; that's why you bought this book! Carefully read over the explanations for any questions you get wrong and note the chapters in which the material relevant to them is covered. This information should help you plan your study strategy.

      2. Study each chapter carefully, making sure you fully understand the information and the test objectives listed at the beginning of each one. Pay extra-close attention to any chapter that includes material covered in questions you missed.

      3. Complete the written labs at the end of each chapter. (Answers to these appear in Appendix A.) Do not skip these written exercises because they directly relate to the Cisco exams and what you must glean from the chapters in which they appear. Do not just skim these labs! Make sure you completely understand the reason for each correct answer.

      4. Complete all hands-on labs in each chapter, referring to the text of the chapter so that you understand the reason for each step you take. Try to get your hands on some real equipment, but if you don't have Cisco equipment available, try the LammleSim IOS version, which you can use for the hands-on labs found only in this book. These labs will equip you with everything you need for all your Cisco certification goals.

      5. Answer all of the review questions related to each chapter. (The answers appear in Appendix B.) Note the questions that confuse you, and study the topics they cover again until the concepts are crystal clear. And again – do not just skim these questions! Make sure you fully comprehend the reason for each correct answer. Remember that these will not be the exact questions you will find on the exam, but

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