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Todd Lammle CCNA Routing and Switching


Why Become a CCENT and CCNA R/S?

Cisco, like Microsoft and other vendors that provide certification, has

created the certification process to give administrators a set of skills and

to equip prospective employers with a way to measure those skills or

match certain criteria. And as you probably know, becoming a CCNA R/S

is certainly the initial, key step on a successful journey toward a new,

highly rewarding, and sustainable networking career.

The CCNA program was created to provide a solid introduction not only

to the Cisco Internetwork Operating System (IOS) and Cisco hardware

but also to internetworking in general, making it helpful to you in areas

that are not exclusively Cisco's. And regarding today's certification

process, it's not unrealistic that network managers—even those without

Cisco equipment—require Cisco certifications for their job applicants.

Rest assured that if you make it through the CCNA and are still interested

in Cisco and internetworking, you're headed down a path to certain

success!


What Skills Do You Need to Become a CCNA

R/S?

This ICND1 exam (100-105) tests a candidate for the knowledge and skills

required to successfully install, operate, and troubleshoot a small branch

office network. The exam includes questions on the operation of IP data

networks, LAN switching technologies, IPv6, IP routing technologies, IP

services, network device security, and basic troubleshooting. The ICND2

exam (exam 200-105) tests a candidate for the knowledge and skills

required to successfully install, operate, and troubleshoot a small- to



medium-size enterprise branch network. The exam includes questions on

LAN switching technologies, IP routing technologies, security,

troubleshooting, and WAN technologies.

How Do You Become a CCNA R/S

If you want to go straight for our CCNA R/S and take only one exam, all

you have to do is pass the CCNA Composite exam (200-125). Oh, but

don't you wish it were that easy? True, it's just one test, but it's a

whopper, and to pass it you must possess enough knowledge to

understand what the test writers are saying, and you need to know

everything I mentioned previously, in the sections on the ICND1 and

ICND2 exams! Hey, it's hard, but it can be done!

What does the CCNA Composite exam (200-125) cover? Pretty much the

same topics covered in the ICND1 and ICND2 exams. Candidates can

prepare for this exam by taking the Todd Lammle authorized Cisco boot

camps. 200-125 tests a candidate's knowledge and skills required to

install, operate, and troubleshoot a small- to medium-size enterprise

branch network.

While you can take the Composite exam to get your CCNA, it's good to

know that Cisco offers the two-step process I discussed earlier in this

Introduction. And this book covers both those exams too! It may be easier

than taking that one ginormous exam for you, but don't think the two-test

method is easy. It takes work! However, it can be done; you just need to

stick with your studies.

The two-test method involves passing the following:

Exam 100-105: Interconnecting Cisco Networking Devices Part 1

(ICND1)

Exam 200-105: Interconnecting Cisco Networking Devices Part 2



(ICND2)

I can't stress this point enough: It's critical that you have some hands-on

experience with Cisco routers. If you can get a hold of some basic routers

and switches, you're set, but if you can't, I've worked hard to provide

hundreds of configuration examples throughout this book to help

network administrators, or people who want to become network

administrators, learn the skills they need to pass the CCENT and CCNA


R/S exams.

For Cisco certification hands-on training with CCSI Todd

Lammle, please see:

www.lammle.com/ccna

. Each student will get

hands-on experience by configuring at least three routers and two

switches.no sharing of equipment!


What Does This Book Cover?

This book covers everything you need to know to pass the ICND1 (100-

105) and ICND2 (200-105) exams, as well as the CCNA Composite (200-

125) exam. But regardless of which path you choose, as I've said, taking

plenty of time to study and practice with routers or a router simulator is

the real key to success.

You will learn the following information in this book:

Chapter 1: Internetworking Chapters 1.14 map to the ICND1 exam.

In Chapter 1, you will learn the basics of the Open Systems

Interconnection (OSI) model the way Cisco wants you to learn it. There

are written labs and plenty of review questions to help you. Do not even

think of skipping the fundamental written labs in this chapter!

Chapter 2: Ethernet Networking and Data Encapsulation This

chapter will provide you with the Ethernet foundation you need in order

to pass both the CCENT and CCNA exams. Data encapsulation is

discussed in detail in this chapter as well. And as with the other chapters,

this chapter includes written labs and review questions to help you.

Chapter 3: Introduction to TCP/IP This chapter provides you with

the background necessary for success on the exam, as well as in the real

world with a thorough presentation of TCP/IP. This in-depth chapter

covers the very beginnings of the Internet Protocol stack and goes all the

way to IP addressing and understanding the difference between a

network address and a broadcast address before finally ending with

network troubleshooting.

Chapter 4: Easy Subnetting You'll actually be able to subnet a

network in your head after reading this chapter if you really want to! And

you'll find plenty of help in this chapter as long as you don't skip the

written labs and review questions at the end.



Chapter 5: VLSMs, Summarization, and Troubleshooting

TCP/IP Here, you'll find out all about variable length subnet masks

(VLSMs) and how to design a network using VLSMs. This chapter will

finish with summarization techniques and configurations. As with

Chapter 4, plenty of help is there for you if you don't skip the written lab

and review questions.


Chapter 6: Cisco's Internetworking Operating System (IOS)

This chapter introduces you to the Cisco Internetworking Operating

System (IOS) and command-line interface (CLI). In this chapter you'll

learn how to turn on a router and configure the basics of the IOS,

including setting passwords, banners, and more. Hands-on labs will help

you gain a firm grasp of the concepts taught in the chapter. Before you go

through the hands-on labs, be sure to complete the written lab and review

questions.



Chapter 7: Managing a Cisco Internetwork This chapter provides

you with the management skills needed to run a Cisco IOS network.

Backing up and restoring the IOS, as well as router configuration, are

covered, as are the troubleshooting tools necessary to keep a network up

and running. As always, before tackling the hands-on labs in this chapter,

complete the written labs and review questions.



Chapter 8: 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 IOS. Hands-on and written labs, along with review

questions, will help you build a strong foundation for the objectives

covered in this chapter.



Chapter 9: IP Routing This is a fun chapter because we will begin to

build our network, add IP addresses, and route data between routers. You

will also learn about static, default, and dynamic routing using RIP and

RIPv2. Hands-on labs, a written lab, and the review questions will help

you fully nail down IP routing.

Chapter 10: Layer 2 Switching This chapter sets you up with the solid

background you need on layer 2 switching, how switches perform address

learning and make forwarding and filtering decisions. In addition, switch

port security with MAC addresses is covered in detail. As always, go

through the hands-on labs, written lab, and review questions to make

sure you've really got layer 2 switching down!



Chapter 11: VLANs and Inter-VLAN Routing Here I cover virtual

VLANs and how to use them in your internetwork. This chapter covers

the nitty-gritty of VLANs and the different concepts and protocols used

with VLANs. I'll also guide you through troubleshooting techniques in

this all-important chapter. The hands-on labs, written lab, and review


questions are there to reinforce the VLAN material.

Chapter 12: Security This chapter covers security and access lists,

which are created on routers to filter the network. IP standard, extended,

and named access lists are covered in detail. Written and hands-on labs,

along with review questions, will help you study for the security and

access-list portion of the Cisco exams.

Chapter 13: Network Address Translation (NAT) New

information, commands, troubleshooting, and detailed hands-on labs will

help you nail the NAT CCENT objectives.

Chapter 14: Internet Protocol Version 6 (IPv6) This is a fun

chapter chock-full of some great information. IPv6 is not the big, bad

scary creature that most people think it is, and it's a really important

objective on the latest exam, so study this chapter carefully—don't just

skim it. And make sure you hit those hands-on labs hard!

Chapter 15: Enhanced Switched Technologies Chapter 15 is the

first chapter of Part 2 of this book, which maps to the ICND2 exam. This

chapter will start off with STP protocols and dive into the fundamentals,

covering the modes, as well as the various flavors 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

they're written to help you understand the chapter material and

ultimately pass the exam!

6.  Try your hand at the practice questions that are exclusive to this book.

The questions can be found only at

www.wiley.com/go/sybextestprep

.

And be sure to check out



www.lammle.com/ccna

for the most up-to-

date Cisco exam prep questions, videos, Todd Lammle boot camps,

and more.

7.  Test yourself using all the flashcards, which are also found on the

download link. These are brand-new and updated flashcards to help

you prepare for the CCNA R/S exam and a wonderful study tool!

To learn every bit of the material covered in this book, you'll have to

apply yourself regularly, and with discipline. Try to set aside the same

time period every day to study, and select a comfortable and quiet place

to do so. I'm confident that if you work hard, you'll be surprised at how

quickly you learn this material!

If you follow these steps and really study—doing hands-on labs every

single day in addition to using the review questions, the practice exams,

the Todd Lammle video sections, and the electronic flashcards, as well as

all the written labs—it would actually be hard to fail the Cisco exams. But

understand that studying for the Cisco exams is a lot like getting in shape

—if you do not go to the gym every day, it's not going to happen!

Where Do You Take the Exams?


You may take the ICND1, ICND2, or CCNA R/S Composite or any Cisco

exam at any of the Pearson VUE authorized testing centers. For

information, check

www.vue.com

or call 877-404-EXAM (3926).

To register for a Cisco exam, follow these steps:

1.  Determine the number of the exam you want to take. (The ICND1

exam number is 100-105, ICND2 is 100-205, and CCNA R/S

Composite is 200-125.)

2.  Register with the nearest Pearson VUE testing center. At this point,

you will be asked to pay in advance for the exam. At the time of this

writing, the ICND1 and ICND2 exams are $150, and the CCNA R/S

Composite exam is $250. The exams must be taken within one year of

payment. You can schedule exams up to six weeks in advance or as

late as the day you want to take it—but if you fail a Cisco exam, you

must wait five days before you will be allowed to retake it. If

something comes up and you need to cancel or reschedule your exam

appointment, contact Pearson VUE at least 24 hours in advance.

3.  When you schedule the exam, you'll get instructions regarding all

appointment and cancellation procedures, the ID requirements, and

information about the testing-center location.

Tips for Taking Your Cisco Exams

The Cisco exams contain about 40-50 questions and must be completed

in about 90 minutes or less. This information can change per exam. You

must get a score of about 85 percent to pass this exam, but again, each

exam can be different.

Many questions on the exam have answer choices that at first glance look

identical—especially the syntax questions! So remember to read through

the choices carefully because close just doesn't cut it. If you get

commands in the wrong order or forget one measly character, you'll get

the question wrong. So, to practice, do the hands-on exercises at the end

of this book's chapters over and over again until they feel natural to you.

Also, never forget that the right answer is the Cisco answer. In many

cases, more than one appropriate answer is presented, but the correct

answer is the one that Cisco recommends. On the exam, you will always

be told to pick one, two, or three options, never "choose all that apply."


The Cisco exam may include the following test formats:

Multiple-choice single answer

Multiple-choice multiple answer

Drag-and-drop

Router simulations

Cisco proctored exams will not show the steps to follow in completing a

router interface configuration, but they do allow partial command

responses. For example,

show run, sho running

, or


sh running-config

would be acceptable.

Here are some general tips for exam success:

Arrive early at the exam center so you can relax and review your study

materials.

Read the questions carefully. Don't jump to conclusions. Make sure

you're clear about exactly what each question asks. "Read twice,

answer once," is what I always tell my students.

When answering multiple-choice questions that you're not sure about,

use the process of elimination to get rid of the obviously incorrect

answers first. Doing this greatly improves your odds if you need to

make an educated guess.

You can no longer move forward and backward through the Cisco

exams, so doublecheck your answer before clicking Next since you

can't change your mind.

After you complete an exam, you'll get immediate, online notification of

your pass or fail status, a printed examination score report that indicates

your pass or fail status, and your exam results by section. (The test

administrator will give you the printed score report.) Test scores are

automatically forwarded to Cisco within five working days after you take

the test, so you don't need to send your score to them. If you pass the

exam, you'll receive confirmation from Cisco, typically within two to four

weeks, sometimes a bit longer.


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