The must-have guide to the CWTS exam, updated for 2017
CWTS Certified Wireless Technology Specialist Study Guide is your number-one resource for comprehensive exam preparation. Updated to study in 2017 and beyond, this book takes a multi-modal approach to ensure your complete confidence and ability for the big day: full coverage of all CWTS exam objectives reinforces your conceptual knowledge, hands-on exercises help hone your practical skills, and the Sybex online learning environment provides flashcards, a glossary, and review questions to help you test your understanding along the way. An objective map and pre-assessment test allow for more efficient preparation by showing you what you already know and what you need to review--and the companion website's complete practice exams give you a "dry run" so you can pinpoint weak areas while there's still time to improve. If you're serious about earning your CWTS certification, this book is your ideal companion for complete and thorough preparation.
Learn critical concepts and apply essential skills in areas like hardware and software, radio frequency fundamentals, surveying and installation, support, troubleshooting, security, and more. This guide gives you everything you need to approach the exam with confidence.
* Master 100 percent of the CWTS exam objectives
* Use effective planning tools to get the most out of your study time
* Practice your skills with hands-on exercises and real-world scenarios
* Access online study aids that let you review any time, any place
The CWTS certification gets your foot in the door of a growing industry, and is a stepping stone to the industry standard CWNP certification. The exam will test your abilities in all fundamental areas of Wi-Fi technology, so it's important that your study plan be complete and up-to-date. CWTS Certified Wireless Technology Specialist Study Guide is your ideal solution for comprehensive preparation.
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978-1-119-38503-5 (9781119385035)
Schweitzer Klassifikation
Robert J. Bartz, CWNE, CWNT, is a technical trainer and consultant with more than 26 years of experience in computer networking technology. He has been involved with the CWNP program since its inception, and has taught vendor-neutral IEEE 802.11 wireless LAN technology to thousands of people globally. Robert is also the author of the first two editions of CWTS: Certified Wireless Technology Specialist Official Study Guide.
Introduction xvii
Assessment Test xl
Chapter 1 Computer Networking Fundamentals 1
Network Types 2
Network Topologies 7
The OSI Model 14
Device Addressing 21
Summary 27
Exam Essentials 28
Review Questions 30
Chapter 2 Wireless Local Area Networking, Standards, and Certifications 35
The Wireless Computer Network 36
Building-to-Building Connectivity Using Wireless LAN Technology 38
Radio Frequency Regulatory Domain Governing Bodies and Local Regulatory Authorities 40
The IEEE 42
Interoperability Certifications 55
Common Wireless Local Area Network Deployment Scenarios 59
Summary 71
Exam Essentials 72
Review Questions 73
Chapter 3 Infrastructure and Client Devices Used with Wireless Networking 77
The Wireless Access Point 80
Wireless Mesh 95
Wireless Bridges 96
Wireless Repeaters/Range Extenders 97
Wireless LAN Controllers and Cloud-Managed Architectures 98
Power over Ethernet 104
Radio Hardware Used with Wireless LAN Technology 108
USB 1.0, USB 1.1, USB 2.0, and USB 3.0 108
Peripheral Component Interconnect 112
Mini-PCI, Mini-PCIe, and Half Mini-PCIe 115
Wireless Workgroup Bridges 118
Client Device Drivers 121
Client Utility Software 121
Summary 124
Exam Essentials 125
Review Questions 126
Chapter 4 Radio Frequency Fundamentals for Wireless Networking 131
Understanding Radio Frequency 133
Wireless LAN Coverage and Capacity 143
Radio Frequency Range and Speed 150
Wi-Fi and Non-Wi-Fi Interference 152
Basic Units of Radio Frequency Measurement 158
Summary 166
Exam Essentials 167
Review Questions 168
Chapter 5 Antenna Technology for Wireless Networking 171
Basic Radio Frequency Antenna Concepts 172
Wireless LAN Antenna Types 180
Radio Frequency Cables and Connectors 195
Factors in Antenna Installation 199
Minimizing the Effects of Multipath Using Antenna Diversity 200
Combating Effects of Wind and Lightning in Wireless LAN Installations 201
Installation Safety 203
Antenna Mounting 203
Maintaining Clear Communications 206
Summary 208
Exam Essentials 209
Review Questions 211
Chapter 6 Communication for Wireless Networking 215
Wireless LAN Operation Methods 216
Connecting to an IEEE 802.11 Wireless Network 227
The Distribution System 237
Data Rates 238
Throughput 240
Dynamic Rate Switching 246
Wireless LAN Transitioning/Roaming 247
IEEE 802.11 Power Save Operations 249
IEEE 802.11 Protection Mechanisms 251
Summary 254
Exam Essentials 256
Review Questions 257
Chapter 7 Modulation Technology for Wireless Networking 261
Network Access Methods 262
Spread-Spectrum Technology 269
IEEE 802.11 DSSS and HR/DSSS Channels 271
IEEE 802.11g Extended Rate Physical 273
IEEE 802.11n High Throughput 275
IEEE 802.11a, 802.11g, 802.11n, and 802.11ac OFDM 275
Summary 287
Exam Essentials 287
Review Questions 289
Chapter 8 Security Fundamentals for Wireless Networking 293
Introducing IEEE 802.11 Wireless LAN Security 295
Wireless LAN Threats and Intrusion 295
IEEE 802.11 Standard Security 297
Early Wireless LAN Security Methods 298
MAC Address Filtering 301
IEEE 802.11 Authentication and Data Encryption 302
IEEE 802.11 SOHO and Enterprise Security Technologies 304
Wi-Fi Protected Access and WPA2 Personal Security 307
WPA and WPA2 Enterprise Security 308
IEEE 802.1X/EAP 308
IEEE 802.11 Encryption Methods 313
Role-Based Access Control 317
Virtual Private Networking 318
The Wireless Intrusion Prevention System 328
The Captive Portal 334
Wireless Network Management and Monitoring Systems 334
Industry Regulatory Compliance 339
Summary 340
Exam Essentials 341
Review Questions 343
Chapter 9 Design for Wireless Networking 347
Wireless Site Surveys 349
Gathering Business Requirements 356
Interviewing Stakeholders 358
Gathering Site-Specific Documentation 362
Identifying Infrastructure Connectivity and Power Requirements 366
Understanding Application Requirements 368
Understanding Radio Frequency Coverage and Capacity Requirements 369
Client Connectivity Requirements 369
Antenna Use Considerations 370
The Physical Radio Frequency Site Survey Process 374
Radio Frequency Spectrum Analysis 375
Received Signal Strength 385
Performing a Manual Radio Frequency Wireless Site Survey 387
Performing a Predictive Modeling Site Survey 400
Performing a Post-Deployment Site Survey 403
Protocol Analysis 403
RF Coverage Planning 410
Infrastructure Hardware Selection and Placement 410
Testing Different Antennas 411
Wireless Channel Architectures 413
Wireless Device Installation Limitations 414
Site Survey Report 415
Summary 417
Exam Essentials 418
Review Questions 420
Chapter 10 Mobile Device Management and BYOD Fundamentals 425
Mobile Device Management Solutions 427
Common Mobile Device Operating System Platforms 430
The Mobile Application Store 431
Pushing Content to Mobile Devices 435
Mobile Device Management Administrative Permissions 436
Understanding Mobile Device Management High Availability and Redundancy 436
Mobile Device Management Device Groups 437
Location-Based Services 438
Mobile Device Telecommunications Expense Management 440
Captive and Self-Service Portals 440
General Technology Network and Security Policy 442
Information Technology and Security Policy Implementation and Adherence 443
Backup, Restore, and Recovery Policies 445
Operating System Modifications and Customization 446
Technology Profiles 448
Understanding Group Profiles 451
Policy and Profile Pilot Testing 453
Summary 454
Exam Essentials 455
Review Questions 456
Chapter 11 Troubleshooting for Wireless Networking 461
Identifying Wireless LAN Problems 462
Wireless LAN Connectivity-Coverage and Capacity Problems 465
Application Performance Problems 480
Optimizing Wireless Networks 488
Summary 498
Exam Essentials 499
Review Questions 500
Appendix Answers to Review Questions 505
Chapter 1: Computer Networking Fundamentals 506
Chapter 2: Wireless Local Area Networking, Standards, and Certifications 508
Chapter 3: Infrastructure and Client Devices Used with Wireless Networking 509
Chapter 4: Radio Frequency Fundamentals for Wireless Networking 511
Chapter 5: Antenna Technology for Wireless Networking 512
Chapter 6: Communication for Wireless Networking 514
Chapter 7: Modulation Technology for Wireless Networking 516
Chapter 8: Security Faundamentals for Wireless Networking 517
Chapter 9: Design for Wireless Networking 519
Chapter 10: Mobile Device Management and BYOD Fundamentals 521
Chapter 11: Troubleshooting for Wireless Networking 525
Index 529
