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CWNA Certified Wireless Network Administrator Study Guide: Exam CWNA-107

CWNA Certified Wireless Network Administrator Study Guide: Exam CWNA-107


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About the Book

The bestselling CWNA study guide, updated for the latest exam The CWNA: Certified Wireless Network Administrator Study Guide is the ultimate preparation resource for the CWNA exam. Fully updated to align with the latest version of the exam, this book features expert coverage of all exam objectives to help you internalize essential information. A pre-assessment test reveals what you already know, allowing you to focus your study time on areas in need of review, while hands-on exercises allow you to practice applying CWNA concepts to real-world scenarios.  Expert-led discussion breaks complex topics down into easily-digestible chucks to facilitate clearer understanding, and chapter review questions help you gauge your progress along the way. You also get a year of free access to the Sybex online interactive learning environment, which features additional resources and study aids including bonus practice exam questions. The CWNA exam tests your knowledge of regulations and standards, protocols and devices, network implementation, security, and RF site surveying. Thorough preparation gives you your best chance of passing, and this book covers it all with a practical focus that translates to real on-the-job skills. Study 100% of the objectives for Exam CWNA-107 Assess your practical skills with hands-on exercises Test your understanding with challenging chapter tests Access digital flashcards, white papers, bonus practice exams, and more The CWNA certification is a de facto standard for anyone working with wireless technology. It shows employers that you have demonstrated competence in critical areas, and have the knowledge and skills to perform essential duties that keep their wireless technology functioning and safe. The CWNA: Certified Wireless Network Administrator Study Guide gives you everything you need to pass the exam with flying colors.

Table of Contents:
Foreword xxxi Introduction xxxiii Assessment Test lxiv Chapter 1 Overview of Wireless Standards, Organizations, and Fundamentals 1 History of Wireless Local Area Networks 2 Standards Organizations 4 Core, Distribution, and Access 19 Communications Fundamentals 21 Summary 29 Exam Essentials 30 Review Questions 31 Chapter 2 IEEE 802.11 Standard and Amendments 35 Original IEEE 802.11 Standard 38 IEEE 802.11-2016 Ratified Amendments 39 Post 802.11-2016 Ratified Amendments 58 IEEE 802.11 Draft Amendments 58 Defunct Amendments 61 IEEE Task Group m 63 Summary 64 Exam Essentials 64 Review Questions 65 Chapter 3 Radio Frequency Fundamentals 69 What Is a Radio Frequency Signal? 71 Radio Frequency Characteristics 72 Radio Frequency Behaviors 80 Summary 96 Exam Essentials 96 Review Questions 97 Chapter 4 Radio Frequency Components, Measurements, and Mathematics 101 RF Components 104 Units of Power and Comparison 107 RF Mathematics 115 Summary 132 Exam Essentials 134 Review Questions 135 Chapter 5 Radio Frequency Signal and Antenna Concepts 139 Azimuth and Elevation Charts (Antenna Radiation Envelopes) 141 Interpreting Polar Charts 144 Beamwidth 147 Antenna Types 149 Visual Line of Sight 160 RF Line of Sight 160 Fresnel Zone 161 Earth Bulge 165 Antenna Polarization 166 Antenna Diversity 167 Multiple-Input, Multiple-Output 168 Antenna Connection and Installation 170 Antenna Accessories 178 Regulatory Compliance 184 Summary 185 Exam Essentials 185 Review Questions 186 Chapter 6 Wireless Networks and Spread Spectrum Technologies 191 Narrowband and Spread Spectrum 193 Frequency-Hopping Spread Spectrum 196 Direct-Sequence Spread Spectrum 198 Orthogonal Frequency-Division Multiplexing 200 Industrial, Scientific, and Medical Bands 204 Unlicensed National Information Infrastructure Bands 206 3.6 GHz Band 209 4.9 GHz Band 209 Future Wi-Fi Frequencies 210 2.4 GHz Channels 211 5 GHz Channels 215 Adjacent, Nonadjacent, and Overlapping Channels 221 Throughput vs. Bandwidth 221 Communication Resilience 222 Summary 223 Exam Essentials 223 Review Questions 225 Chapter 7 Wireless LAN Topologies 229 Wireless Networking Topologies 230 802.11 Stations 233 802.11 Service Sets 237 802.11 Configuration Modes 248 Summary 250 Exam Essentials 250 Review Questions 251 Chapter 8 802.11 Medium Access 255 CSMA/CA vs. CSMA/CD 256 Collision Detection 257 Distributed Coordination Function 258 Point Coordination Function 266 Hybrid Coordination Function 267 Wi-Fi Multimedia 269 Airtime Fairness 271 Summary 272 Exam Essentials 273 Review Questions 274 Chapter 9 802.11 MAC 279 Packets, Frames, and Bits 281 Data-Link Layer 282 Physical Layer 283 802.11 and 802.3 Interoperability 284 802.11 MAC Header 285 802.11 Frame Body 297 802.11 Trailer 298 802.11 State Machine 299 Management Frames 300 Control Frames 314 Data Frames 322 Power Management 326 Summary 331 Exam Essentials 331 Review Questions 333 Chapter 10 MIMO Technology: HT and VHT 339 MIMO 342 Multi-User MIMO 351 Channels 355 Guard Interval 361 256-QAM Modulation 363 802.11n/ac PPDUs 367 802.11n/ac MAC 369 HT/VHT Protection Mechanisms 378 Wi-Fi Alliance Certification 379 Summary 382 Exam Essentials 383 Review Questions 384 Chapter 11 WLAN Architecture 389 WLAN Client Devices 391 Management, Control, and Data Planes 402 WLAN Architecture 404 Specialty WLAN Infrastructure 417 Cloud Networking 426 Infrastructure Management 428 Application Programming Interface 433 Summary 436 Exam Essentials 436 Review Questions 438 Chapter 12 Power over Ethernet (PoE) 443 History of PoE 444 An Overview of PoE Devices 446 Planning and Deploying PoE 458 802.11ac and PoE 463 Summary 465 Exam Essentials 465 Review Questions 466 Chapter 13 WLAN Design Concepts 471 WLAN Coverage Design 473 Roaming Design 479 Channel Design 485 Capacity Design 504 Voice vs. Data 517 Dual 5 GHz and Software-Defined Radios 519 Physical Environment 522 Antennas 523 Outdoor Design 527 Summary 528 Exam Essentials 529 Review Questions 530 Chapter 14 Site Survey and Validation 535 WLAN Site Survey and Design Interview 537 Vertical Market Considerations 548 Legacy AP-on-a-Stick Survey 551 Hybrid Survey 560 Validation Survey 565 Site Survey Tools 569 Documents and Reports 574 Summary 579 Exam Essentials 579 Review Questions 581 Chapter 15 WLAN Troubleshooting 587 Five Tenets of WLAN Troubleshooting 589 Layer 1 Troubleshooting 595 Layer 2 Troubleshooting 602 Security Troubleshooting 614 Roaming Troubleshooting 627 Channel Utilization 631 Layers 3–7 Troubleshooting 633 WLAN Troubleshooting Tools 636 Summary 644 Exam Essentials 644 Review Questions 646 Chapter 16 Wireless Attacks, Intrusion Monitoring, and Policy 653 Wireless Attacks 654 Intrusion Monitoring 671 Wireless Security Policies 677 Summary 681 Exam Essentials 681 Review Questions 683 Chapter 17 802.11 Network Security Architecture 687 802.11 Security Basics 689 Legacy 802.11 Security 693 Robust Security 699 Traffic Segmentation 718 WPA3 721 VPN Wireless Security 722 Summary 725 Exam Essentials 726 Review Questions 727 Chapter 18 Bring Your Own Device (BYOD) and Guest Access 731 Mobile Device Management 734 Self-Service Device Onboarding for Employees 748 Guest WLAN Access 751 Hotspot 2.0 and Passpoint 765 Network Access Control 770 Summary 776 Exam Essentials 777 Review Questions 779 Chapter 19 802.11ax: High Efficiency (HE) 783 HE Overview 784 Multi-User 787 OFDMA 788 MU-MIMO 799 BSS Color 800 Target Wake Time 805 Additional 802.11ax PHY and MAC Capabilities 806 802.11ax Design Considerations 811 Summary 812 Review Questions 814 Chapter 20 WLAN Deployment and Vertical Markets 815 Deployment Considerations for Commonly Supported WLAN Applications and Devices 817 Corporate Data Access and End-User Mobility 821 Network Extension to Remote Areas 822 Bridging: Building-to-Building Connectivity 823 Wireless ISP: Last-Mile Data Delivery 823 Small Office/Home Office 824 Mobile Office Networking 825 Branch Offices 825 Educational/Classroom Use 826 Industrial: Warehousing and Manufacturing 827 Retail 828 Healthcare 829 Municipal Networks 830 Hotspots: Public Network Access 830 Stadium Networks 832 Transportation Networks 833 Law Enforcement Networks 833 First-Responder Networks 834 Managed Service Providers 835 Fixed Mobile Convergence 835 WLAN and Health 836 Internet of Things 836 WLAN Vendors 837 Summary 840 Exam Essentials 840 Review Questions 841 Appendix A Answers to Review Questions 845 Chapter 1: Overview of Wireless Standards, Organizations, and Fundamentals 846 Chapter 2: IEEE 802.11 Standard and Amendments 847 Chapter 3: Radio Frequency Fundamentals 850 Chapter 4: Radio Frequency Components, Measurements, and Mathematics 852 Chapter 5: Radio Frequency Signal and Antenna Concepts 854 Chapter 6: Wireless Networks and Spread Spectrum Technologies 856 Chapter 7: Wireless LAN Topologies 858 Chapter 8: 802.11 Medium Access 860 Chapter 9: 802.11 MAC 863 Chapter 10: MIMO Technology: HT and VHT 865 Chapter 11: WLAN Architecture 868 Chapter 12: Power over Ethernet (PoE) 870 Chapter 13: WLAN Design Concepts 872 Chapter 14: Site Survey and Validation 876 Chapter 15: WLAN Troubleshooting 878 Chapter 16: Wireless Attacks, Intrusion Monitoring, and Policy 881 Chapter 17: 802.11 Network Security Architecture 884 Chapter 18: Bring Your Own Device (BYOD) and Guest Access 886 Chapter 19: 802.11ax: High Efficiency (HE) 889 Chapter 20: WLAN Deployment and Vertical Markets 890 Appendix B Abbreviations and Acronyms 893 Certifications 894 Organizations and Regulations 894 Measurements 895 Technical Terms 896 Index 909 Table of Exercises Exercise 3.1 Visual Demonstration of Absorption 88 Exercise 3.2 Visual Demonstration of Multipath and Phase 94 Exercise 4.1 Step-by-Step Use of the Rule of 10s and 3s 116 Exercise 4.2 Rule of 10s and 3s Example 118 Exercise 4.3 Link Budget and Fade Margin 132 Exercise 9.1 Viewing Beacon Frames 302 Exercise 9.2 Understanding Probe Requests and Probe Responses 306 Exercise 9.3 Using Open System Authentication 308 Exercise 9.4 Understanding Association 308 Exercise 9.5 Understanding Reassociation 312 Exercise 9.6 Viewing Action Frames 314 Exercise 9.7 Understanding Acknowledgment 316 Exercise 9.8 Using Data Frames 325 Exercise 14.1 Calculating Cable Loss 574 Exercise 17.1 Using Unencrypted and Encrypted Data Frames 691 Exercise 17.2 802.1X/EAP and the 4-Way Handshake Process 714

About the Author :
David D. Coleman, CWNE #4, is a WLAN consultant, technical trainer, public speaker and Senior Product Evangelist for Aerohive Networks. He is the author of numerous books, white papers and videos about Wi-Fi technology. David A. Westcott, CWNE #7, is an independent consultant and WLAN technical trainer of thirty years. He provides vendor and custom wireless training to government agencies, corporations and universities around the world.


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Product Details
  • ISBN-13: 9781119477501
  • Publisher: John Wiley & Sons Inc
  • Publisher Imprint: Standards Information Network
  • Edition: Revised edition
  • No of Pages: 1024
  • ISBN-10: 1119477506
  • Publisher Date: 29 Aug 2018
  • Binding: Digital (delivered electronically)
  • Language: English
  • Sub Title: Exam CWNA-107


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