CCNA Wireless 200-355 Official Cert Guide

David Hucaby, CCIE No. 4594, is a network engineer for a large university healthcare network based on Cisco wireless products. David has bachelor’s and master’s degrees in electrical engineering from the University of Kentucky. He is the author of several Cisco Press titles, including CCNP SWITCH Exam Certification Guide; Cisco LAN Switching Video Mentor; CCNP Security FIREWALL Exam Certification Guide; Cisco ASA, PIX, and FWSM Firewall Handbook, Second Edition; and Cisco Firewall Video Mentor. David lives in Kentucky with his wife, Marci, and two daughters.

• IntroductionChapter 1 RF Signals and Modulation 3“Do I Know This Already?” Quiz 3Foundation Topics 7Comparing Wired and Wireless Networks 7Understanding Basic Wireless Theory 7Understanding Frequency 9Understanding Phase 14Measuring Wavelength 14Understanding RF Power and dB 15Important dB Laws to Remember 17Comparing Power Against a Reference: dBm 19Measuring Power Changes Along the Signal Path 20Understanding Power Levels at the Receiver 23Carrying Data Over an RF Signal 24FHSS 26DSSS 271-Mbps Data Rate 282-Mbps Data Rate 285.5-Mbps Data Rate 2911-Mbps Data Rate 30OFDM 30Modulation Summary 32Exam Preparation Tasks 34Review All Key Topics 34Key Terms 34Chapter 2 RF Standards 37“Do I Know This Already?” Quiz 37Foundation Topics 41Regulatory Bodies 41ITU-R 41FCC 42ETSI 44Other Regulatory Bodies 45IEEE Standards Body 45802.11 Channel Use 47Channels in the 2.4-GHz ISM Band 47Channels in the 5-GHz U-NII Bands 49IEEE 802.11 Standards 50802.11-1997 51802.11b 51802.11g 52802.11a 53802.11n 54Channel Aggregation 55Spatial Multiplexing 57MAC Layer Efficiency 58Transmit Beamforming 59Maximal-Ratio Combining 60802.11n Modulation and Coding Schemes 60802.11ac 60Robust Channel Aggregation 61Dense Modulation 63MAC Layer Efficiency 63Explicit Transmit Beamforming 64Scalable MIMO 64Multi-user MIMO 64802.11ac Implementation 65802.11 in Other Frequency Bands 65Wi-Fi Alliance 66Exam Preparation Tasks 68Review All Key Topics 68802.11 Protocol Summary 68Define Key Terms 69Chapter 3 RF Signals in the Real World 71“Do I Know This Already?” Quiz 71Foundation Topics 74Interference 74Co-Channel Interference 74Neighboring Channel Interference 75Non-802.11 Interference 76Free Space Path Loss 77Mitigating the Effects of Free Space Path Loss 79Effects of Physical Objects 80Reflection 81Absorption 82Scattering 83Refraction 83Diffraction 84Fresnel Zones 84Exam Preparation Tasks 88Review All Key Topics 88Define Key Terms 88Chapter 4 Understanding Antennas 91“Do I Know This Already?” Quiz 91Foundation Topics 94Antenna Characteristics 94Radiation Patterns 94Gain 97Beamwidth 97Polarization 98Antenna Types 99Omnidirectional Antennas 99Directional Antennas 103Antenna Summary 107Adding Antenna Accessories 107Exam Preparation Tasks 109Review All Key Topics 109Define Key Terms 109Chapter 5 Wireless LAN Topologies 111“Do I Know This Already?” Quiz 111Foundation Topics 114Types of Wireless Networks 114Wireless LAN Topologies 115Basic Service Set 116Distribution System 118Extended Service Set 120Independent Basic Service Set 122Other Wireless Topologies 122Repeater 122Workgroup Bridge 123Outdoor Bridge 124Mesh Network 125Exam Preparation Tasks 126Review All Key Topics 126Define Key Terms 126Chapter 6 Understanding 802.11 Frame Types 129“Do I Know This Already?” Quiz 129Foundation Topics 132802.11 Frame Format 132802.11 Frame Addressing 134Accessing the Wireless Medium 136Carrier Sense 137Collision Avoidance 137802.11 Frame Types 140Management Frames 140Control Frames 141Data Frames 142Client Housekeeping 142A Client Scans for APs 143A Client Joins a BSS 144A Client Leaves a BSS 145A Client Moves Between BSSs 146A Client Saves Power 147Exam Preparation Tasks 151Review All Key Topics 151Define Key Terms 151Chapter 7 Planning Coverage with Wireless APs 153“Do I Know This Already?” Quiz 153Foundation Topics 157AP Cell Size 157Tuning Cell Size with Transmit Power 157Tuning Cell Size with Data Rates 159Adding APs to an ESS 162The Roaming Process 163WLAN Channel Layout 165Designing and Validating Coverage with Site Surveys 169Applications and Their Requirements 169Site Survey Types and Tools 171Predictive or Planning Surveys 172Passive Site Surveys 174Active Site Surveys 175Developing a Complete Survey Strategy 178Exam Preparation Tasks 180Review All Key Topics 180Define Key Terms 180Site Survey Type and Application Highlights 180Chapter 8 Understanding Cisco Wireless Architectures 183“Do I Know This Already?” Quiz 183Foundation Topics 187Distributed Architectures 187Autonomous Architecture 187Cloud-based Architecture 190Split-MAC Architectures 192Centralized Wireless Network Architecture 197Converged Wireless Network Architecture 200FlexConnect Wireless Network Architecture 204Cisco Wireless Network Building Blocks 205Cisco Wireless LAN Controllers 205Cisco APs 206Exam Preparation Tasks 209Review All Key Topics 209Chapter 9 Implementing Autonomous and Cloud Deployments 211“Do I Know This Already?” Quiz 211Foundation Topics 214Initially Configuring an Autonomous AP 215Connecting the AP 215Initially Configuring the AP 217Upgrading an Autonomous AP 221Initially Configuring Cloud-based APs 223Exam Preparation Tasks 228Review All Key Topics 228Define Key Terms 228Chapter 10 Implementing Controller-based Deployments 231“Do I Know This Already?” Quiz 231Foundation Topics 235Connecting a Centralized Controller 235Using Controller Ports 235Using Controller Interfaces 237Performing an Initial Setup 238Initial Setup of a Centralized Controller with the Configuration Wizard 239Initial Setup of a Converged Controller with the Configuration Wizard 247Initial Setup of a Centralized Controller with WLAN Express Setup 254Initial Setup of a Centralized Controller with the CLI 257Maintaining a Wireless Controller 258Backing Up Controller Configurations 258Updating Wireless LAN Controller Code 259Updating Wireless Control Module Code 262Exam Preparation Tasks 263Review All Key Topics 263Define Key Terms 263Chapter 11 Understanding Controller Discovery 265“Do I Know This Already?” Quiz 265Foundation Topics 268Discovering a Controller 268AP States 268Discovering a WLC 270Selecting a WLC 271Designing High Availability 272Detecting a Controller Failure 274Building Redundancy 274N+1 Redundancy 274N+N Redundancy 275N+N+1 Redundancy 276SSO Redundancy 277Exam Preparation Tasks 279Review All Key Topics 279Define Key Terms 279Chapter 12 Understanding Roaming 281“Do I Know This Already?” Quiz 281Foundation Topics 285Roaming Overview 285Roaming Between Autonomous APs 285Intracontroller Roaming 288Roaming Between Centralized Controllers 290Layer 2 Roaming 290Layer 3 Roaming 292Scaling Mobility with Mobility Groups 296Roaming Coordination with Centralized Controllers 298Roaming Between Converged Controllers 300Exam Preparation Tasks 303Review All Key Topics 303Define Key Terms 303Chapter 13 Understanding RRM 305“Do I Know This Already?” Quiz 305Foundation Topics 308Configuring 802.11 Support 308Configuring Data Rates 309Configuring 802.11n and 802.11ac Support 310Understanding RRM 311RF Groups 313TPC 315DCA 318Coverage Hole Detection Mitigation 320Manual RF Configuration 322Verifying RRM Results 323Exam Preparation Tasks 325Review All Key Topics 325Define Key Terms 325Chapter 14 Wireless Security Fundamentals 327“Do I Know This Already?” Quiz 327Foundation Topics 331Anatomy of a Secure Connection 331Authentication 332Message Privacy 333Message Integrity 334Intrusion Protection 335Wireless Client Authentication Methods 336Open Authentication 336WEP 337802.1x/EAP 338LEAP 339EAP-FAST 339PEAP 340EAP-TLS 340Wireless Privacy and Integrity Methods 341TKIP 341CCMP 342WPA and WPA2 342Securing Management Frames with MFP 343Configuring Wireless Security 344Configuring WPA2 Personal 344Configuring WPA2 Enterprise Mode 346Configuring WPA2 Enterprise with Local EAP 348Exam Preparation Tasks 351Review All Key Topics 351Define Key Terms 351Chapter 15 Configuring a WLAN 353“Do I Know This Already?” Quiz 353Foundation Topics 355WLAN Overview 355Configuring a WLAN 356Configuring a RADIUS Server 356Creating a Dynamic Interface 358Creating a New WLAN 360Configuring WLAN Security 362Configuring WLAN QoS 364Configuring Advanced WLAN Settings 365Finalizing WLAN Configuration 366Exam Preparation Tasks 368Review All Key Topics 368Chapter 16 Implementing a Wireless Guest Network 371“Do I Know This Already?” Quiz 371Foundation Topics 374Guest Network Overview 374Scaling the Guest Network 375Configuring a Guest Network 377Exam Preparation Tasks 382Review All Key Topics 382Define Key Terms 382Chapter 17 Configuring Client Connectivity 385“Do I Know This Already?” Quiz 385Foundation Topics 388Configuring Common Wireless Clients 388Considering Wireless Client Requirements 388Understanding Windows Wi-Fi 389Understanding Android Wi-Fi 395Understanding MacOS X Wi-Fi 397Understanding Apple iOS Wi-Fi 400Cisco Compatibility Extensions 402Exam Preparation Tasks 406Review All Key Topics 406Define Key Terms 406Chapter 18 Managing Cisco Wireless Networks 409“Do I Know This Already?” Quiz 409Foundation Topics 412Cisco Unified Access Overview 412Using Prime Infrastructure 414Alarms in the Dashboard 417Monitoring a Wireless Network with Prime Infrastructure 419Using Prime Infrastructure Maps 420Configuring Devices with PI 426Exam Preparation Tasks 427Review All Key Topics 427Chapter 19 Dealing with Wireless Interference 429“Do I Know This Already?” Quiz 429Foundation Topics 432Understanding Types of Interference 432Bluetooth 432ZigBee 433Cordless Phones 434Microwave Ovens 434WiMAX 434Other Devices 435Using Tools to Detect and Manage Interference 436Spectrum Analyzers 436Cisco CleanAir 439Enabling CleanAir 440Air-Quality Index 443Using Event-Driven RRM 445Exam Preparation Tasks 447Review All Key Topics 447Define Key Terms 447Chapter 20 Troubleshooting WLAN Connectivity 449“Do I Know This Already?” Quiz 449Foundation Topics 453Troubleshooting Client Connectivity 453Troubleshooting Clients from PI 454Testing a Client from PI 459Troubleshooting Clients from the Controller 461Verifying Client WLAN Settings 462Viewing Controller Logs 463Troubleshooting AP Connectivity 464Verifying AP-to-WLC Connectivity 464Verifying AP-to-Network Connectivity 465Verifying the AP and Antenna Orientation 467Checking the RF Environment 468Exam Preparation Tasks 472Review All Key Topics 472Chapter 21 Final Review 475Advice About the Exam Event 475Learn the Question Types Using the Cisco Certification Exam Tutorial 475Think About Your Time Budget 480Other Pre-Exam Suggestions 481Exam Engine and Questions on the DVD 482Install the Exam Engine 482Activate and Download the Practice Exam 483Activating Other Exams 483Premium Edition 484Using the Exam Engine 484The Cisco Learning Network 485Final Thoughts 485Appendix A Answers to the “Do I Know This Already?” Quizzes 487Appendix B Modulation and Coding Schemes 505Appendix C CCNA Wireless 200-355 Exam Updates 513Key Terms Glossary 515  On the DVDAppendix D Study PlannerKey Terms Glossary     9781587144578   TOC   11/19/2015