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CWNA Certified Wireless Network Administrator Study Guide

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The bestselling CWNA study guide, updated for the latest exam The CWNA: Certified Wireless Network Administrator Study Guide is th... Weiterlesen
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Beschreibung

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.



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.

Autorentext

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.

Klappentext

Covers 100% of exam objectives, including RF Fundamentals, 802.11 protocols, WLAN design, Wireless troubleshooting, WLAN architecture and devices, Wi-Fi security and much more. Includes online interactive learning environment with:

  • Online review questions for each chapter
  • 2 bonus online practice exams
  • More than 300 electronic flashcards
  • Searchable key term glossary
  • Bonus files for chapter exercises

The Bestselling Guide to Preparation for the New CWNA Exam, Covering All Objectives

Successfully completing the Certified Wireless Network Administrator exam elevates your career in the field of wireless technology. This 5th Edition of the bestselling Study Guide is fully updated to cover 100% of the objectives required for the latest version of the exam. An expert author team leads you through every topic, with discussions that clarify complex subjects and hands-on exercises that let you increase understanding by applying the concepts. A pre-assessment test and chapter review questions help you focus your study. Enhance your learning with the exclusive Sybex online learning environment, where you can access digital flashcards, white papers, practice tests, and more. The CWNA Study Guide has been the #1 reference book for wireless LAN professionals for over 15 years.

Coverage of 100% of all exam objectives in this Study Guide means you'll be ready for:

  • Radio Frequency Fundamentals
  • 802.11 Standard and Protocols
  • WLAN Topologies
  • WLAN Design
  • WLAN Site Surveying
  • MIMO Technology
  • WLAN Security
  • WLAN Troubleshooting
  • Wi-Fi Architecture and Devices
  • Power over Ethernet

Interactive learning environment

Take your exam prep to the next level with Sybex's superior interactive online study tools. To access our learning environment, simply visit www.wiley.com/go/sybextestprep, register your book to receive your unique PIN, and register the PIN for access to:

  • Interactive test bank with multiple practice exams. Practice exams help you identify areas where further review is needed. Get more than 90% of the answers correct, and you're ready to take the certification exam. 600 questions total!
  • More than 300 electronic flashcards to reinforce learning and last-minute prep before the exam
  • Comprehensive glossary in PDF format gives you instant access to the key terms so you are fully prepared

ABOUT THE CWNA CERTIFICATION

Administered by CWNP, the vendor- neutral CWNA certification is a foundation-level exam for any professional working with wireless networks. It is the leading wireless certification program and recommended by all major enterprise wireless networking companies. For more information, visit www.cwnp.com.

Zusammenfassung

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.



Inhalt

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 ...

Produktinformationen

Titel: CWNA Certified Wireless Network Administrator Study Guide
Untertitel: Exam CWNA-107
Autor:
EAN: 9781119477501
Digitaler Kopierschutz: Adobe-DRM
Format: E-Book (epub)
Hersteller: Wiley
Genre: Informatik, EDV
Anzahl Seiten: 1024
Veröffentlichung: 29.08.2018
Dateigrösse: 17.3 MB
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