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Certified Wireless Network Administrator (CWNA - 40hrs)
Course Outline
Introduction to 802.11 WLANs
* Discuss the standards organizations responsible for shaping the 802.11 Wireless LAN protocol
* Learn how standards compliance is enforced for 802.11 WLAN vendors
* Examine the 802.11 standard and various amendments
* Discuss additional networking standards that are commonly used to enhance 802.11 WLANs
Radio Frequency Fundamentals
* Physical aspects of RF propagation
* Types of losses and attenuation that affect RF communications
* Types of modulation and coding schemes (MCS) used for 802.11 communications
* How channels and bandwidth are related to each other in wireless networks
* Types of Spread Spectrum used in wireless networking
RF Power Output Regulations
* Understand international, regional, and local RF spectrum management organizations
* Understand RF channels in the unlicensed 2.4 GHz and 5 GHz frequency ranges
* Understand how power output limitations are enforced by the FCC for Point-to-Multipoint (PtMP) and Point-to-Point (PtP) wireless connections
Power over Ethernet
* Recognize the two types of devices used in Power over Ethernet (PoE)
* Recognize the differences between the two types of Power Sourcing Equipment (PSE)
* Understand the two ways in which power can be delivered using PoE
* Understand the importance of planning to maximize the efficiency of Power over Ethernet
* Understand the two standards currently available for PoE
* Powering 802.11n APs
Basic WLAN Analysis
* Protocol Analysis
* 802.11 Frame Types
* Data Frames
* Control Frames
* Management Frames
* Protection Mechanisms
* Legacy Power Saving operations
* Transmission Rates
Coordinating 802.11 Frame Transmissions
* Differences between CSMA/CD and CSMA/CA
* Distributed Coordination Function (DCF)
* Network Allocation Vector (NAV)
* Clear Channel Assessment (CCA)
* Interframe Spacing (IFS)
* Contention Window (CW)
* Quality of Service in 802.11 WLANs
* Point Coordination Function (PCF)
* Hybrid Coordination Function (HCF)
RF Math and System Operating Margin
* RF units of measure
* Basic RF mathematics
* RF signal measurements
* Understand link budgets
802.11 Service Sets
* Three types of service sets defined for use within 802.11 WLANs
* 802.11 authentication and association
* 802.11 network infrastructure
* Roaming within a WLAN
* Load-balancing as a method to improve congestion in WLANs
The 802.11n Amendment
* Challenges addressed by 802.11n
* 802.11n PHY/MAC layer enhancements
* MIMO and SISO systems
* 802.11n coexistence mechanisms
* 802.11n integration and deployment considerations
* 802.11n site surveying and analysis
Wireless LAN Operation
* WLAN Hardware Devices
* WLAN Software
* Architecture Types and Evolution
* Ad Hoc & Infrastructure Connectivity Operation
* AP Modes
* Bridging & Repeating
* Mesh Networking
* WLAN Controller Deployments
* WLAN Profiles
* Multichannel Architecture (MCA)
* Single Channel Architecture (SCA)
* WLAN Management Systems (WNMS)
WLAN Security
* The Importance of WLAN Security
* Security Policy
* Legacy WLAN Security Mechanisms
* Modern WLAN Security Mechanisms
* Baseline WLAN Security Practices
Site Surveying
* Defining an RF site survey
* Spectrum Analysis
* Types of RF site surveys
* Manual RF site surveys
* Predictive Modeling
* Dense AP deployments
Antennas
* Types of antennas and antenna systems commonly used in 802.11 WLANs
* Antenna Polarization and Gain
* Antenna implementation and safety
* Types of antenna cables, connectors, and other accessories
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