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The bestselling CCNA prep guide with the field´s leading Cisco authority
CCNA Routing and Switching Complete Deluxe Study Guide, 2nd Edition is a leading resource for those taking the Cisco Certified Network Associate exams. Whether you´re taking the CCNA Composite exam or the ICND-1 and ICND-2, this Deluxe Study Guide has you covered with clear, expert guidance and plenty of hands-on labs. Networking expert Todd Lammle guides you through 100% of the exam objectives with detailed discussion and real-world insight on routing and switching, IP data networks, troubleshooting, security, and more. Examples, exercises, and the included network simulator help you gain practical experience in critical skills. The Sybex interactive online learning environment includes hundreds of sample questions, over 100 electronic flashcards, a pre-assessment test, and bonus practice exams to help you test your understanding and gauge your readiness along the way. In this Deluxe edition, you will also get 20% off a year subscription and free access to a premium Cisco Switch Lab from the experts at ITProTV.

As 80% of the Internet´s routers are Cisco, the CCNA certification is an important start for any networking career. Make sure you´re fully prepared for the exam with this comprehensive Deluxe Study Guide.

Master 100% of the objectives for all three exams
Gain practical experience with dozens of hands-on labs
Test your knowledge with bonus practice exams
20% off a year membership and free access to Cisco premium labs from ITProTV
When it comes to networking technologies, there´s no substitute for hands-on experience. Reading best practices is one thing, but it´s not enough to pass the exam-or do the job. CCNA Routing and Switching Complete Deluxe Study Guide, 2nd Edition gives you everything you need to understand networking concepts, and demonstrate those skills on exam day and beyond.



Table of Contents

Introduction xxv
Assessment Test l

Part I ICND1 1

Chapter 1 Internetworking 3

Internetworking Basics 4

Internetworking Models 13

The Layered Approach 13

Advantages of Reference Models 14

The OSI Reference Model 15

The Application Layer 17

The Presentation Layer 18

The Session Layer 18

The Transport Layer 18

The Network Layer 24

The Data Link Layer 26

The Physical Layer 29

Summary 31

Exam Essentials 31

Written Labs 32

Written Lab 1.1: OSI Questions 32

Written Lab 1.2: Defining the OSI Layers and Devices 34

Written Lab 1.3: Identifying Collision and Broadcast Domains 34

Review Questions 36

Chapter 2 Ethernet Networking and Data Encapsulation 41

Ethernet Networks in Review 42

Collision Domain 43

Broadcast Domain 44

CSMA/CD 45

Half- and Full-Duplex Ethernet 47

Ethernet at the Data Link Layer 49

Ethernet at the Physical Layer 55

Ethernet Cabling 59

Straight-Through Cable 59

Crossover Cable 60

Rolled Cable 62

Fiber Optic 64

Data Encapsulation 66

The Cisco Three-Layer Hierarchical Model 69

The Core Layer 71

The Distribution Layer 71

The Access Layer 72

Summary 72

Exam Essentials 73

Written Labs 74

Written Lab 2.1: Binary/Decimal/Hexadecimal Conversion 74

Written Lab 2.2: CSMA/CD Operations 77

Written Lab 2.3: Cabling 78

Written Lab 2.4: Encapsulation 78

Review Questions 79

Chapter 3 Introduction to TCP/IP 85

Introducing TCP/IP 86

A Brief History of TCP/IP 87

TCP/IP and the DoD Model 87

The Process/Application Layer Protocols 89

The Host-to-Host or Transport Layer Protocols 99

The Internet Layer Protocols 108

IP Addressing 116

IP Terminology 116

The Hierarchical IP Addressing Scheme 117

Private IP Addresses (RFC 1918) 122

IPv4 Address Types 123

Layer 2 Broadcasts 124

Layer 3 Broadcasts 124

Unicast Address 125

Multicast Address 126

Summary 127

Exam Essentials 127

Written Labs 129

Written Lab 3.1: TCP/IP 129

Written Lab 3.2: Mapping Applications to the DoD Model 129

Review Questions 131

Chapter 4 Easy Subnetting 135

Subnetting Basics 136

How to Create Subnets 138

Subnet Masks 138

Classless Inter-Domain Routing (CIDR) 140

IP Subnet-Zero 142

Subnetting Class C Addresses 142

Subnetting Class B Addresses 154

Subnetting Class A Addresses 163

Summary 166

Exam Essentials 166

Written Labs 167

Written Lab 4.1: Written Subnet Practice #1 167

Written Lab 4.2: Written Subnet Practice #2 168

Written Lab 4.3: Written Subnet Practice #3 169

Review Questions 170

Chapter 5 VLSMs, Summarization, and Troubleshooting TCP/IP 175

Variable Length Subnet Masks (VLSMs) 176

VLSM Design 178

Implementing VLSM Networks 179

Summarization 186

Troubleshooting IP Addressing 189

Determining IP Address Problems 192

Summary 196

Exam Essentials 197

Written Lab 5 198

Lab 5.1: Summarization Practice 198

Review Questions 199

Chapter 6 Cisco's Internetworking Operating System (IOS) 205

The IOS User Interface 206

Cisco IOS 206

Connecting to a Cisco IOS Device 207

Bringing Up a Switch 209

Command-Line Interface (CLI) 209

Entering the CLI 210

Overview of Router Modes 210

CLI Prompts 211

Editing and Help Features 213

Administrative Configurations 218

Hostnames 219

Banners 219

Setting Passwords 221

Encrypting Your Passwords 227

Descriptions 229

Router and Switch Interfaces 231

Bringing Up an Interface 234

Viewing, Saving, and Erasing Configurations 240

Deleting the Configuration and Reloading the Device 242

Verifying Your Configuration 242

Summary 255

Exam Essentials 256

Written Lab 6: IOS Understanding 259

Hands-on Labs 259

Hands-on Lab 6.1: Erasing an Existing Configuration 260

Hands-on Lab 6.2: Exploring User, Privileged, and Configuration Modes 260

Hands-on Lab 6.3: Using the Help and Editing Features 261

Hands-on Lab 6.4: Saving a Configuration 262

Hands-on Lab 6.5: Setting Passwords 263

Hands-on Lab 6.6: Setting the Hostname, Descriptions, IP Address, and Clock Rate 265

Review Questions 267

Chapter 7 Managing a Cisco Internetwork 273

The Internal Components of a Cisco Router and Switch 274

The Router and Switch Boot Sequence 275

Backing Up and Restoring the Cisco Configuration 276

Backing Up the Cisco Configuration 277

Restoring the Cisco Configuration 279

Erasing the Configuration 279

Configuring DHCP 280

DHCP Relay 281

Verifying DHCP on Cisco IOS 282

Syslog 283

Configuring and Verifying Syslog 285

Network Time Protocol (NTP) 288

Exploring Connected Devices Using CDP and LLDP 289

Getting CDP Timers and Holdtime Information 290

Gathering Neighbor Information 291

Documenting a Network Topology Using CDP 295

Using Telnet 298

Telnetting into Multiple Devices Simultaneously 300

Checking Telnet Connections 300

Checking Telnet Users 301

Closing Telnet Sessions 301

Resolving H