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Networking´s leading authority joins Sybex for the ultimate CCNA prep guide
CCNA Routing and Switching Complete Study Guide, 2nd Edition is your comprehensive review for the CCNA exams. Written by the leading authority on networking technology, this guide covers 100% of all objectives for the latest ICND1, ICND2, and CCNA Composite exams. Hands-on labs help you gain experience in critical procedures and practices, and the network simulator provides a realistic lab environment so you can practice at your own pace. Gain access to the Sybex online learning environment, featuring a robust set of study tools including: practice questions, flashcards, video instruction, and an extensive glossary of terms to help you better prepare for exam day. The pre-assessment test helps you prioritize your study time, and bonus practice exams allow you to test your understanding. Need more practice? Get 20% off a year subscription and free access to premium Cisco Labs-providing hands-on, real-world experience using Cisco Routers, Switches, and Firewalls. Free online video training is also included, with almost forty hours of Routing and Switching guidance from the experts at ITProTV.
The CCNA certification is essential to a career in networking, and the exam can be taken in two parts or as a composite. Whichever you choose, this book is your essential guide for complete review.
Master IP data network operation
Troubleshoot issues and keep the network secure
Understand switching and routing technologies
Work with IPv4 and IPv6 addressing
Full coverage and expert insight makes CCNA Routing and Switching Complete Study Guide your ultimate companion for CCNA prep.
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 Hostnames 302
Building a Host Table 302
Using DNS to Resolve Names 304
Checking Network Connectivity and Troubleshooting 306
Using the ping Command 306
Using the traceroute Command 307
Debugging 308
Using the