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CCENT/CCNA ICND 100-105 Official Cert Guide


Author: Wendell Odom

Publisher: Cisco Press


Publish Date: May 27, 2016

ISBN-10: 1587205807

Pages: 1024

File Type: Epub

Language: English

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Book Preface

What’s on the CCNA Exams—And What’s in the Book?

Ever since I was in grade school, whenever the teacher announced that we were having a test soon, someone would always ask, “What’s on the test?” Even in college, people would try to get more information about what would be on the exams. At heart, the goal is to know what to study hard, what to study a little, and what to not study at all.

You can find out more about what’s on the exam from two primary sources: this book and from the Cisco website.

The Cisco Published Exam Topics

First, Cisco tells the world the specific topics on each of their exams. Cisco wants the public to know both the variety of topics, and an idea about the kinds of knowledge and skills required for each topic, for every Cisco certification exam. Just go to, look for the CCENT and CCNA Routing and Switching pages, and navigate until you see the exam topics in Appendix R, “Exam Topic Cross Reference.” This PDF appendix lists two cross references: one with a list of the exam topics and the chapters that include something about each topic, as well as the reverse: a list of chapters, with the exam topics included in each chapter.

Cisco does more than just list the topic (for example, IPv4 addressing), but they also list the depth to which you must master the topic. The primary exam topics each list one or more verbs that describe the skill level required. For example, consider the following exam topic, which describes one of the most important topics in both CCENT and CCNA R&S:

Configure, verify, and troubleshoot IPv4 addressing and subnetting

Note that this one exam topic has three verbs (configure, verify, and troubleshoot). So, you should be able to not only configure IPv4 addresses and subnets, but you should understand them well enough to verify that the configuration works, and to troubleshoot problems when it is not working. And if to do that, you need to understand concepts, and you need to have other knowledge, those details are implied. The exam questions will attempt to assess whether you can configure, verify, and troubleshoot.

Note that the list of exam topics provides a certain level of depth. For example, the ICND1 100-105 exam topic list has 41 primary exam topics (topics with verbs), plus additional subtopics that further define that technology area.

You should take the time to not only read the exam topics, but read the short material above the exam topics as listed at the Cisco web page for each certification and exam. Look for notices about the use of unscored items, and the fact that Cisco intends the exam topics to be a set of general guidelines for the exams.

This Book: About the Exam Topics

This book provides a complete study system for the Cisco published exam topics for the ICND1 100-105 exam. All the topics in this book either directly relate to some ICND1 exam topic or provide more basic background knowledge for some exam topic. The scope of the book is based on the exam topics.

For those of you thinking more specifically about the CCNA R&S certification and the CCNA 200-125 single-exam path to CCNA, this book covers about one-half of the CCNA exam topics. The ICND1 book (and ICND1 100-105 exam topics) covers about half of the topics listed for the CCNA 200-125 exam, and the ICND2 book (and the ICND2 200-105 exam topics) cover the other half. In short, for content, CCNA = ICND1 + ICND2.

Book Features

This book, and the similar CCNA Routing and Switching ICND2 200-105 Official Cert Guide, go beyond what you would find in a simple technology book. These books give you a study system designed to help you not only learn facts but also to develop the skills need to pass the exams. To do that, in the technology chapters of the book, about three-quarters of the chapter is about the technology, and about one-quarter is for the related study features.

The “Foundation Topics” section of each chapter contains rich content to explain the topics on the exam and to show many examples. This section makes extensive use of figures, with lists and tables for comparisons. It also highlights the most important topics in each chapter as key topics, so you know what to master first in your study.

Most of the book’s features tie in some way to the need to study beyond simply reading the “Foundation Topics” section of each chapter. The rest of this section works through these book features. And because the book organizes your study by chapter, and then by part (a part contains multiple chapters), and then a final review at the end of the book, this Introduction discusses the book features introduced by chapter, part, and for final review

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