A complete guide to the CCNA Wireless exam by leading networkingauthority Todd LammleThe CCNA Wireless certification is the most respectedentry-level certification in this rapidly growing field. ToddLammle is the undisputed authority on networking, and this bookfocuses exclusively on the skills covered in this Ciscocertification exam.The CCNA Wireless Study Guide joins the popular Sybexstudy guide family and helps network administrators advance theircareers with a highly desirable certification.* The CCNA Wireless certification is the most respectedentry-level wireless certification for system administratorslooking to advance their careers* Written by Todd Lammle, the leading networking guru and authorof numerous bestselling certification guides* Provides in-depth coverage of every exam objective and thetechnology developed by Cisco for wireless networking* Covers WLAN fundamentals, installing a basic Cisco wireless LANand wireless clients, and implementing WLAN security* Explains the operation of basic WCS, basic WLAN maintenance,and troubleshooting* Companion CD includes the Sybex Test Engine, flashcards, andentire book in PDF format* Includes hands-on labs, end-of-chapter review questions, ExamEssentials overview, Real World Scenarios, and a tear-out objectivemap showing where each exam objective is coveredThe CCNA Wireless Study Guide prepares any networkadministrator for exam success.Note: CD-ROM/DVD and other supplementary materials arenot included as part of eBook file.

The CCNA Wireless certification is the most respected entry-level certification in this rapidly growing field. Todd Lammle is the undisputed authority on networking, and this book focuses exclusively on the skills covered in this Cisco certification exam.

The CCNA Wireless Study Guide joins the popular Sybex study guide family and helps network administrators advance their careers with a highly desirable certification.

• The CCNA Wireless certification is the most respected entry-level wireless certification for system administrators looking to advance their careers
• Written by Todd Lammle, the leading networking guru and author of numerous bestselling certification guides
• Provides in-depth coverage of every exam objective and the technology developed by Cisco for wireless networking
• Covers WLAN fundamentals, installing a basic Cisco wireless LAN and wireless clients, and implementing WLAN security
• Explains the operation of basic WCS, basic WLAN maintenance, and troubleshooting
• Companion CD includes the Sybex Test Engine, flashcards, and entire book in PDF format
• Includes hands-on labs, end-of-chapter review questions, Exam Essentials overview, Real World Scenarios, and a tear-out objective map showing where each exam objective is covered

The CCNA Wireless Study Guide prepares any network administrator for exam success.

Note: CD-ROM/DVD and other supplementary materials are not included as part of eBook file.

Introduction xxi

Assessment Test xxx

Chapter 1 Wireless Networks and Topologies 1

Wireless Networks 2

Wireless Personal Area Network (WPAN) 3

Wireless LAN (WLAN) 4

Wireless Metro Area Network (WMAN) 4

Wireless Wide Area Network (WWAN) 5

Basic Wireless Devices 5

Wireless Access Points 5

Wireless Network Interface Card (NIC) 7

Wireless Antennas 8

Wireless Topologies 9

Independent Basic Service Set (Ad Hoc) 9

Basic Service Set (BSS) 10

Infrastructure Basic Service Set 11

Service Set ID 12

Extended Service Set 12

Workgroup Bridge 14

Repeaters 15

Bridging 16

Mesh Networks 17

Switching 19

VLAN Memberships 21

Static VLANs 21

Dynamic VLANs 21

Types of Switch Ports 22

Frame Tagging 24

VLAN Trunking Protocols 24

Configuring VLANs 25

Assigning Switch Ports to VLANs 27

Configuring Trunk Ports 28

Summary 32

Exam Essentials 32

Written Lab 1 33

Review Questions 34

Answers to Review Questions 38

Answers to Written Lab 1 40

Chapter 2 WLAN RF Fundamentals 41

Introducing Radio Frequency (RF) 43

RF Basics 43

Radio Frequency Behaviors 46

RF Operational Requirements 51

RF Math 54

RF Values 54

Rule of 3s and 10s 57

WLAN Antennas 60

Antenna Principles 60

Polarization 61

Diversity 62

Antenna Types 63

Semidirectional 67

Highly Directional 68

Antenna Accessories 69

Summary 73

Exam Essentials 74

Written Lab 75

Review Questions 76

Answers to Review Questions 80

Answers to Written Lab 82

Chapter 3 Spread Spectrum Technologies and Modulations 83

Transmission Methods: An Overview 84

Spread Spectrum 85

Frequency Hopping Spread Spectrum 86

Direct Sequence Spread Spectrum 88

Orthogonal Frequency Division Multiplexing 91

Channel Management and Overlap 96

Channel Overlap Techniques 98

Summary 99

Exam Essentials 100

Written Lab 101

Review Questions 102

Answers to Review Questions 104

Answers to Written Lab 105

Chapter 4 Wireless Regulation Bodies, Standards, and Certifications 107

Wireless Regulations 108

IEEE 802.11 Transmission 109

Unlicensed Bands 110

IEEE Wireless 112

2.4GHz (802.11b) 113

2.4GHz (802.11g) 116

5GHz (802.11a) 119

5GHz (802.11h) 121

2.4GHz/5GHz (802.11n) 123

Wireless Frames 126

CSMA/CA 126

Three Frames Types 128

A Closer Look at Management Frames 133

A Closer Look at Control Frames 141

Nonstandard Wireless Technologies 144

Bluetooth 144

Cordless Phones 145

ZigBee 145

Non-802.11 Interfering Devices 146

WiMAX 146

Summary 148

Exam Essentials 148

Written Lab 149

Review Questions 150

Answers to Review Questions 154

Answers to Written Lab 156

Chapter 5 Introduction to Wireless Security 157

Wireless Threats 158

Rogue APs 159

Ad Hoc Networks 159

Denial of Service 160

Passive Attacks 162

Open Access 163

Security Measures 164

Service Set Identifiers (SSIDs) and

Media Access Control (MAC) Address Authentication 165

Authentication 165

Encryption 176

Centralized Key Management 183

Implementation Standards 184

Summary 188

Exam Essentials 188

Written Lab 189

Review Questions 190

Answers to Review Questions 194

Answers to Written Lab 196

Chapter 6 Wireless Clients and Cisco Extension (CCX) 197

Wireless Clients 198

Windows XP 198

Windows Vista 203

Windows 7 208

Apple 208

Linux 210

Cisco's Supplicants 212

Cisco ADU 212

Cisco Secure Services Client 217

Installation 217

Cisco-Compatible Extensions 220

CCX Versions 1 Through 5 220

Summary 221

Exam Essentials 221

Written Lab 223

Hands-on Labs 224

Hands-on Lab 6.1: Installing the ADU 224

Hands-on Lab 6.2: Creating a Profile 224

Review Questions 226

Answers to Review Questions 230

Answers to Written Lab 232

Chapter 7 Introduction to the Cisco Unified Wireless Network (CUWN) 233

WLAN Deployment Models 234

Stand-alone Model 235

Lightweight Model 236

Cisco Unified Network Devices 239

Access Points 239

Wireless LAN Contro…