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CCNA Wireless 200-355 Official Cert Guide presents you with an organized test-preparation routine through the use of proven series elements and techniques. ´Do I Know This Already?ö quizzes open each chapter and enable you to decide how much time you need to spend on each section. Exam topic lists make referencing easy. Chapter-ending Exam Preparation Tasks help you drill on key concepts you must know thoroughly.
· Master Cisco CCNA 200-355 exam topics
· Assess your knowledge with chapter-opening quizzes
· Review key concepts with exam preparation tasks
· Practice with realistic exam questions on the DVD
CCNA Wireless 200-355 Official Cert Guide focuses specifically on the objectives for the Cisco CCNA WIFUND 200-355exam. Leading network engineer and best-selling Cisco certification author David Hucaby 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.
The companion DVD contains a powerful Pearson IT Certification Practice Test engine that enables you to focus on individual topic areas or take a complete, timed exam. The assessment engine also tracks your performance and provides feedback on a module-by-module basis, laying out a complete assessment of your knowledge to help you focus your study where it is needed most.
Well regarded for its level of detail, assessment features, comprehensive design scenarios, 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.
The official study guide helps you master all the topics on the CCNA WIFUND exam, including
RF signals, modulations, standards, and performance
Antenna theory
Wireless LAN topologies and 802.11 frame types
Wireless AP coverage planning
Cisco wireless architectures
Autonomous, cloud, and controller-based deployments
Controller discovery, roaming, and RRM
Wireless security
WLAN configuration
Wireless guest network implementation
Client connectivity
Cisco wireless network management
Troubleshooting interference and connectivity
CCNA Wireless 200-355 Official Cert 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 http://www.cisco.com/web/learning/index.html.
The print edition of the CCNA Wireless 200-355 Official Cert Guide contains two free, complete practice exams.
Also available from Cisco Press for Cisco CCNA study is the CCNA Wireless 200-355 Official Cert Guide Premium Edition eBook and Practice Test. This digital-only certification preparation product combines an eBook with enhanced Pearson IT Certification Practice Test.
This integrated learning package
· Enables you to focus on individual topic areas or take complete, timed exams
· Includes direct links from each question to detailed tutorials to help you understand the concepts behind the questions
· Provides unique sets of exam-realistic practice questions
· Tracks your performance and provides feedback on a module-by-module basis, laying out a complete assessment of your knowledge to help you focus your study where it is needed most
Introduction
Chapter 1 RF Signals and Modulation 3
"Do I Know This Already?ö Quiz 3
Foundation Topics 7
Comparing Wired and Wireless Networks 7
Understanding Basic Wireless Theory 7
Understanding Frequency 9
Understanding Phase 14
Measuring Wavelength 14
Understanding RF Power and dB 15
Important dB Laws to Remember 17
Comparing Power Against a Reference: dBm 19
Measuring Power Changes Along the Signal Path 20
Understanding Power Levels at the Receiver 23
Carrying Data Over an RF Signal 24
FHSS 26
DSSS 27
1-Mbps Data Rate 28
2-Mbps Data Rate 28
5.5-Mbps Data Rate 29
11-Mbps Data Rate 30
OFDM 30
Modulation Summary 32
Exam Preparation Tasks 34
Review All Key Topics 34
Key Terms 34
Chapter 2 RF Standards 37
"Do I Know This Already?ö Quiz 37
Foundation Topics 41
Regulatory Bodies 41
ITU-R 41
FCC 42
ETSI 44
Other Regulatory Bodies 45
IEEE Standards Body 45
802.11 Channel Use 47
Channels in the 2.4-GHz ISM Band 47
Channels in the 5-GHz U-NII Bands 49
IEEE 802.11 Standards 50
802.11-1997 51
802.11b 51
802.11g 52
802.11a 53
802.11n 54
Channel Aggregation 55
Spatial Multiplexing 57
MAC Layer Efficiency 58
Transmit Beamforming 59
Maximal-Ratio Combining 60
802.11n Modulation and Coding Schemes 60
802.11ac 60
Robust Channel Aggregation 61
Dense Modulation 63
MAC Layer Efficiency 63
Explicit Transmit Beamforming 64
Scalable MIMO 64
Multi-user MIMO 64
802.11ac Implementation 65
802.11 in Other Frequency Bands 65
Wi-Fi Alliance 66
Exam Preparation Tasks 68
Review All Key Topics 68
802.11 Protocol Summary 68
Define Key Terms 69
Chapter 3 RF Signals in the Real World 71
"Do I Know This Already?ö Quiz 71
Foundation Topics 74
Interference 74
Co-Channel Interference 74
Neighboring Channel Interference 75
Non-802.11 Interference 76
Free Space Path Loss 77
Mitigating the Effects of Free Space Path Loss 79
Effects of Physical Objects 80
Reflection 81
Absorption 82
Scattering 83
Refraction 83
Diffraction 84
Fresnel Zones 84
Exam Preparation Tasks 88
Review All Key Topics 88
Define Key Terms 88
Chapter 4 Understanding Antennas 91
"Do I Know This Already?ö Quiz 91
Foundation Topics 94
Antenna Characteristics 94
Radiation Patterns 94
Gain 97
Beamwidth 97
Polarization 98
Antenna Types 99
Omnidirectional Antennas 99
Directional Antennas 103
Antenna Summary 107
Adding Antenna Accessories 107
Exam Preparation Tasks 109
Review All Key Topics 109
Define Key Terms 109
Chapter 5 Wireless LAN Topologies 111
"Do I Know This Already?ö Quiz 111
Foundation Topics 114
Types of Wireless Networks 114
Wireless LAN Topologies 115
Basic Service Set 116
Distribution System 118
Extended Service Set 120
Independent Basic Service Set 122
Other Wireless Topologies 122
Repeater 122
Workgroup Bridge 123
Outdoor Bridge 124
Mesh Network 125
Exam Preparation Tasks 126
Review All Key Topics 126
Define Key Terms 126
Chapter 6 Understanding 802.11 Frame Types 129
"Do I Know This Already?ö Quiz 129
Foundation Topics 132
802.11 Frame Format 132
802.11 Frame Addressing 134
Accessing the Wireless Medium 136
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