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CCNA Wireless Official Exam Certification Guide

CCNA Wireless Official Exam Certification Guide * Master IUWNE 640-721 exam topics with the official study guide * Assess your knowledge with chapter-opening quizzes * Review key concepts with Exam Preparation Tasks * Practice with realistic exam questions on the CD-ROM CCNA Wireless Official Exam Certification Guide is a best of breed Cisco(R) exam study guide that focuses specifically on the objectives for the CCNA(R) Wireless IUWNE exam. Senior instructor Brandon Carroll shares preparation hints and test-taking tips, helping you identify areas of weakness and improve both your conceptual knowledge and hands-on skills. Material is presented in a concise manner, focusing on increasing your understanding and retention of exam topics. CCNA Wireless Official Exam Certification Guide presents you with an organized test preparation routine through the use of proven series elements and techniques. "Do I Know This Already?" quizzes open each chapter and allow you to decide how much time you need to spend on each section. Exam topic lists make referencing easy. Chapter-ending Exam Preparation Tasks sections help you drill on key concepts you must know thoroughly. The companion CD-ROM contains a powerful testing engine that allows you to focus on individual topic areas or take complete, timed exams. The assessment engine also tracks your performance and provides feedback on a module-by-module basis, presenting question-by-question remediation to the text and laying out a complete study plan for review. Well-regarded for its level of detail, assessment features, and challenging review questions and exercises, this official study guide helps you master the concepts and techniques that will enable you to succeed on the exam the first time. CCNA Wireless Official Exam Certification Guide is part of a recommended learning path from Cisco that includes simulation and hands-on training from authorized Cisco Learning Partners and self-study products from Cisco Press. To find out more about instructor-led training, e-learning, and hands-on instruction offered by authorized Cisco Learning Partners worldwide, please visit Brandon James Carroll is one of the country's leading instructors for Cisco security technologies, teaching classes that include the CCNA, CCNP(R), CCSP(R) courses, a number of the CCVP(R) courses, as well as custom-developed courseware. In his eight years with Ascolta, Brandon has developed and taught many private Cisco courses for companies such as Boeing, Intel, and Cisco. He is a CCNA, CCNP, CCSP, and a certified Cisco instructor. Brandon is the author of Cisco Access Control Security. The official study guide helps you master all the topics on the IUWNE exam, including: * WLAN RF principles* WLAN technologies and topologies* Antennae concepts*802.11 protocols* Wireless media access* Wired to wireless network packet delivery* Cisco Unified Wireless Networks basic architecture* Controller discovery, association, and configuration* Adding mobility with roaming* Migrating standalone AP to LWAPP* Mobility Express architecture* Wireless clients* Installing and configuring the WCS* Securing, maintaining, and troubleshooting wireless networks Companion CD-ROM The CD-ROM contains an electronic copy of the book and more than 150 practice questions for the IUWNE exam. This volume is part of the Exam Certification Guide Series from Cisco Press(R). Books in this series provide officially developed exam preparation materials that offer assessment, review, and practice to help Cisco Career Certification candidates identify weaknesses, concentrate their study efforts, and enhance their confidence as exam day nears. Category: Cisco Press-Cisco Certification Covers: IUWNE exam 640-721
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Table of Contents

Foreword xix Introduction xxPart I Wireless LAN Fundamentals 2Chapter 1 Introduction to Wireless Networking Concepts 5"Do I Know This Already?" Quiz 5Foundation Topics 8Wireless Local-Area Networks 8How Bandwidth Is Achieved from RF Signals 8Unlicensed Frequency Bands Used in WLANs 9900 MHz 112.4 GHz 115 GHz 12Modulation Techniques and How They Work 12DSSS 12MIMO 16Dynamic Rate Shifting 17Sending Data Using CSMA/CA 17Exam Preparation Tasks 18Review All Key Concepts 18Complete the Tables and Lists from Memory 18Definition of Key Terms 18Chapter 2 Standards Bodies 21"Do I Know This Already?" Quiz 21Foundation Topics 24Wireless Standards and Regulatory Committees 24FCC 24ETSI 25IEEE 27Wi-Fi Certification 27Exam Preparation Tasks 28Review All the Key Topics 28Complete the Tables and Lists from Memory 28Definition of Key Terms 28Chapter 3 WLAN RF Principles 31"Do I Know This Already?" Quiz 31Foundation Topics 34Characteristics of Wireless Networks 34Review of Wavelength 34Review of Frequency 34Review of Amplitude 35What Is Effective Isotropic Radiated Power? 35Influences on Wireless Transmissions 35Understanding the Free Path Loss Model 35Understanding Absorption 36Understanding Reflection 38Understanding Multipath 39Understanding Scattering 39Understanding Refraction 40Understanding Line of Sight 41Determining Signal Strength Influences 42The Fresnel Zone 42Received Signal Strength Indicator 42Signal-to-Noise Ratio 43Link Budget 44Exam Preparation Tasks 45Review All Key Concepts 45Definition of Key Terms 45Chapter 4 WLAN Technologies and Topologies 47"Do I Know This Already?" Quiz 47Foundation Topics 52General Wireless Topologies 52WPAN 52WLAN 53WMAN 54WWAN 54Original 802.11 Topologies 55Overview of Ad Hoc Networks 55Network Infrastructure Mode 55Service Set Identifiers 58Vendor-Specific Topology Extensions 59Workgroup Bridges 59Repeaters 60Outdoor Wireless Bridges 61Outdoor Mesh Networks 62Exam Preparation Tasks 64Review All the Key Topics 64Definition of Key Terms 64Chapter 5 Antenna Communications 67"Do I Know This Already?" Quiz 67Foundation Topics 71Principles of Antennas 71Polarization 71Diversity 71Common Antenna Types 73Omnidirectional Antennas 73Directional Antennas 79Antenna Connectors and Hardware 89Attenuators 89Amplifiers 89Lightning Arrestors 89Splitters 90Exam Preparation Tasks 91Review All the Key Topics 91Complete the Tables and Lists from Memory 91Definition of Key Terms 91References in This Chapter 92Chapter 6 Overview of the 802.11 WLAN Protocols 95"Do I Know This Already?" Quiz 95Foundation Topics 100The 802.11 Protocol Family Overview 100The Original 802.11 Protocol 100The 802.11b Protocol 100The 802.11g Protocol 101How 802.11g Interacts with 802.11b 102The 802.11a Protocol 106802.11a Power Requirements 107The 802.11n Protocol 108Sending Frames 109Antenna Considerations 109Exam Preparation Tasks 110Review All Key Concepts 110Complete the Tables and Lists from Memory 110Definition of Key Terms 110End Notes 110Chapter 7 Wireless Traffic Flow and AP Discovery 113"Do I Know This Already?" Quiz 113Foundation Topics 116Wireless Frame Transmission 116Wireless Frame Types 116Sending a Frame 116Wireless Frame Headers 118Frame Types 120Management Frames 121Control Frames 123Power Save Mode and Frame Types 124Frame Speeds 125A Wireless Connection 125Exam Preparation Tasks 129Review All the Key Concepts 129Complete the Tables and Lists from Memory 129Definition of Key Terms 129Chapter 8 Additional Wireless Technologies 131"Do I Know This Already?" Quiz 131Foundation Topics 134Cordless Phones 134Bluetooth 135ZigBee 135WiMax 138Other Types of Interference 140Exam Preparation Tasks 141Review All the Key Topics 141Definition of Key Terms 141Endnotes 141References in This Chapter 141Chapter 9 Delivering Packets from the Wireless to Wired Network 143"Do I Know This Already?" Quiz 143Foundation Topics 147The Wireless Network Road Trip 147The Association Process 147Sending to a Host on Another Subnet 148Using VLANs to Add Control 153VLAN Membership Modes 154Configuring VLANs and Trunks 155Creating VLANs 156Assigning Ports to a VLAN 158Creating Trunk Ports 159Exam Preparation Tasks 162Review All the Key Topics 162Complete the Tables and Lists from Memory 162Definition of Key Terms 163Command References to Check Your Memory 163End Notes 163Part II Cisco Wireless LANs 164Chapter 10 Cisco Wireless Networks Architecture 167"Do I Know This Already?" Quiz 167Foundation Topics 171The Need for Centralized Control 171The Cisco Solution 171APs in the CUWN 172WLCs in the CUWN 172Features of the Cisco Controllers 172Supporting Multiple Networks 173The CUWN Architecture 174Client Devices 176Access Points 176The 1130AG 177The 1240AG 178The 1250 Series AP 178The 1300 Series AP/Bridge 179The 1400 Series Wireless Bridge 180Cisco Access Point Summary 180Wireless LAN Controllers 181The Cisco 44xx Series WLC 182The 3750-G WLC 182The Cisco 2106 WLC 183The Cisco WLCM 184Wireless LAN Controller Summary 185Wireless Network Management 185Exam Preparation Tasks 187Review All the Key Topics 187Complete the Tables and Lists from Memory 187Definition of Key Terms 187References 187Chapter 11 Controller Discovery and Association 189"Do I Know This Already?" Quiz 189Foundation Topics 192Understanding the Different LWAPP Modes 192LWAPP Layer 2 Transport Mode 193LWAPP Layer 3 Transport Mode 194How an LWAPP AP Discovers a Controller 196How an LWAPP AP Chooses a Controller and Joins It 197How an LWAPP AP Receives Its Configuration 200Redundancy for APs and Controllers 201The AP Is Joined, Now What? 202Local Mode 203Monitor Mode 203Sniffer Mode 203Rogue Detection Mode 203H-REAP Mode 204Bridge Mode 204Exam Preparation Tasks 205Review All the Key Topics 205Definition of Key Terms 205Chapter 12 Adding Mobility with Roaming 207"Do I Know This Already?" Quiz 207Foundation Topics 210Understanding Roaming 210Understanding Mobility Groups 210Types of Roaming 212The Layer 2 Roaming Process 215The Layer 3 Roaming Process 216Exam Preparation Tasks 221Review All the Key Topics 221Definition of Key Terms 221Chapter 13 Simple Network Configuration and Monitoring with the CiscoController 223"Do I Know This Already?" Quiz 223Foundation Topics 228Controller Terminology 228Dynamic Interfaces 228Static Interfaces 229Connecting to the Controller 230Controller Boot Sequence 230Performing Initial CLI Configurations 232Performing Initial Web Configurations 235Navigating the Web Interface of the Controller 235Configuring the Controller Using the Web Interface 238Building the Controller Interface 238Creating the WLAN and Tying It to the Interface 240Modifying the Security Settings 242Naming Access Points 243Restricting Access to Access Points 245Summary of Controller Configuration Using the Web Interface 247Monitoring with the Controller 247General Monitoring 248Managing Rogue APs 253Managing Clients 256Using Internal DHCP 257Exam Preparation Tasks 259Review All the Key Topics 259Definition of Key Terms 259Chapter 14 Migrating Standalone APs to LWAPP 261"Do I Know This Already?" Quiz 261Foundation Topics 264Connecting to a Standalone AP 264Accessing the AP in Autonomous Mode 264Using the Express Setup and Express Security for Basic Configuration 265Working with the Web Interface 267Converting to LWAPP 269Converting to LWAPP Using the IOS-to-LWAPP Conversion Utility 269Exam Preparation Tasks 275Review All the Key Topics 275Definition of Key Terms 275Chapter 15 Cisco Mobility Express 277"Do I Know This Already?" Quiz 277Foundation Topics 280Overview of the Small Business Communication System 280521 AP 281526 Wireless Express Controller 281Comparing the Cisco Mobility Express Architecture to the CUWN282Configuring the 521 AP and 526 Controller 282Using the CLI to Configure the Controller 282Using the Web Browser to Configure the Controller 287Using the Cisco Configuration Assistant 288Exam Preparation Tasks 292Review All the Key Topics 292Definition of Key Terms 292References 292Chapter 16 Wireless Clients 295"Do I Know This Already?" Quiz 295Foundation Topics 298Using Windows to Connect to a Wireless LAN 298Configuring a Profile 298How the WZC Tool Works 300Using a Mac to Connect to a Wireless LAN 301Configuring a Profile 301How the AirPort Extreme Tool Works 302Using Linux to Connect to a Wireless LAN 304Configuring a Profile 305How the NetworkManager Tool Works 306Using the ADU to Connect to a Wireless LAN 307Cisco Wireless LAN Adapters 307Installing the ADU 308Configuring a Profile 310Connecting to Preferred Networks 311Manually Creating a Profile 312Managing Profiles 315Using Diagnostic Tools 315The ACAU 319The Cisco Secure Services Client 320Licensing 320Installation 321Configuring Profiles 321SSC Groups 322SSCAU Overview 322The Cisco Client Extension Program 322Exam Preparation Tasks 323Review All the Key Topics 323Complete the Tables and Lists from Memeory 323Definition of Key Terms 323Part III WLAN Maintenance and Administration 324Chapter 17 Securing the Wireless Network 327"Do I Know This Already?" Quiz 327Foundation Topics 331Threats to Wireless Networks 331Ad Hoc Networks 331Rogue APs 331Client Misassociation 331Management Frame Protection 332Wireless Attacks 332Simple Authentications 334Open Authentication 334Preshared Key Authentication with Wired Equivalent Privacy 334MAC Address Filtering 336Centralized Authentication 336802.1x and How It Is Used 338The EAP Process 340The Authentication Server 340EAP-TLS 342EAP-FAST 343PEAP 344LEAP 345Authentication and Encryption 345WPA Overview 346WPA2 Overview 347Exam Preparation Tasks 350Review All the Key Topics 350Complete the Tables and Lists from Memeory 350Definition of Key Terms 351References 351Chapter 18 Enterprise Wireless Management with the WCS and the LocationAppliance 353"Do I Know This Already?" Quiz 353Foundation Topics 358Introduction to the WCS 358Installing and Configuring the WCS 358Administration Options in the WCS 360Adding Controllers to the WCS 362Working with Templates 364Auto Provisioning 367Maps and APs in the WCS 368Planning Mode 372Monitoring with the WCS 376Exam Preparation Tasks 378Review All the Key Topics 378Complete the Tables and Lists from Memeory 378Definition of Key Terms 379References 379Chapter 19 Maintaining Wireless Networks 381"Do I Know This Already?" Quiz 381Foundation Topics 386Upgrading a Controller 386Controller Upgrade Approaches 388Upgrade Using WCS 390Upgrading an AP 391Upgrading WCS 392Managing Configurations 392Working with AP Configuration Files 398Resetting the Controller to the Defaults 398Exam Preparation Tasks 400Review All the Key Topics 400Definition of Key Terms 400References 400Chapter 20 Troubleshooting Wireless Networks 403"Do I Know This Already?" Quiz 403Foundation Topics 408Physical Connections and LEDs 408Common Client-Side Issues 408Using the CLI to Troubleshoot 410Using the Controller Interface 417Using the Controller Logs 418Using SNMP 420Configuring the Community Strings 421Using Tech Support 422Using WCS Version 5.x to Troubleshoot Clients 423Using the Cisco Spectrum Expert 423Exam Preparation Tasks 426Review All the Key Topics 426Complete the Tables and Lists from Memeory 426Definition of Key Terms 427References 427Part IV Final Preparation 428Chapter 21 Final Preparation 431Tools for Final Preparation 431Exam Engine and Questions on the CD 431Install the Software from the CD 432Activate and Download the Practice Exam 432Activating Other Exams 433Cisco Learning Network 433Study Plan 433Recall the Facts 434Practice Configurations 434Use the Exam Engine 435Choosing Study or Simulation Mode 435Passing Scores for the Cisco CCNA Wireless Exams 435Part V Appendixes 436Appendix A Answers to the "Do I Know This Already?" Quizzes 438Appendix B Memory Tables (on the CD only)Appendix C Memory Tables Answer Key (on the CD only)Glossary 450Index 464

About the Author

Brandon James Carroll is one of the country's leading instructors for Cisco security technologies, teaching classes that include the CCNA, CCNP, CCSP courses, a number of the CCVP courses, as well as custom developed courseware. In his 6 years with Ascolta, Brandon has developed and taught many private Cisco courses for companies such as Boeing, Intel, and Cisco themselves. He is a CCNA, CCNP, a CCSP, and a certified Cisco instructor. Brandon is the author of Cisco Access Control Security.

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