CWNA Certified Wireless Network Administrator

Detailed Course Description:

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 used for wireless communications
  • How channels and bandwidth are related to each other in wireless networks
  • Three types of Spread Spectrum used in wireless networking
RF Math and System Operating Margin
  • RF units of measure
  • Basic RF mathematics
  • RF signal measurements
  • Understand link budgets
  • Define and calculate System Operating Margin (SOM)
802.11 Service Sets
  • Explain three types of service sets defined for use within 802.11 WLANs
  • Roaming within a WLAN
  • Load-balancing as a method to improve congestion in WLANs
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
  • 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
Wireless LAN Operation
  • Ad Hoc networks
  • Infrastructure networks
  • Bridged networks
  • Repeater networks
  • Mesh networks
  • WLAN switched networks
  • Enterprise Wireless Gateway networks
  • Enterprise Encryption Gateway networks
  • Virtual AP networks
  • Evolution of WLAN architectures
  • WLAN Management
WLAN Security
  • Security Policy and Procedures
  • Legacy 802.11 Security Components
  • 802.11i Security Components
  • WPA-Personal
  • WPA-Enterprise
  • WPA2-Personal
  • WPA2-Enterprise
  • Baseline Security Practices (SOHO, SMB, Enterprise)
802.11 Analysis and Troubleshooting
  • Introduction to 802.11 Protocol Analysis
  • 802.11 Data Frames
  • 802.11 Control Frames
  • 802.11 Management Frames
  • Frame Fragmentation
  • Power Saving operations
  • Transmission Rates
Coordinating 802.11 Frame Transmissions
  • Differences between CSMA/CD and CSMA/CA
  • Distributed Coordination Function (DCF)
  • Quality of Service in 802.11 WLANS
Antennas
  • Antenna characteristics and behaviors
  • Types of antennas commonly used with WLANs
  • Advanced antenna systems
  • Antenna placement and mounting
  • Antenna safety
  • Types of antenna cables, connectors, and accessories
Site Surveying
  • Understanding the need for a site survey
  • Defining business requirements and justification
  • Facility analysis
  • Interviewing network management and users
  • Identifying bandwidth requirements
  • Determining contours of RF coverage
  • Documenting installation problems
  • Locating interference
  • Reporting methodology and procedures
  • Understanding specifics of each vertical market
  • Understanding the customer's network topology
  • Creating appropriate documentation during and after the site survey
  • Understanding safety hazards
  • Using appropriate hardware and software to perform the survey
  • Understanding the need for spectrum analysis
  • Manual RF site surveys
  • Predictive site surveys
  • Dense AP deployment

Course Information:

 

Various sample deliverables are offered utilizing public domain templates, checklists, and forms. Templates will change continuously adapting to changes in the wireless information services industry.

 

NCS Data Systems consultants working in the wireless information systems field will be dynamically implementing new scenarios that are over and above the base scenarios used in student workbooks.

 

Please note that this is not a class that will explain the very intricacies of each and every technique and template available.

 

NCS Data Systems consultants constantly revise information used in this class.

 

To enroll in the class or for further information and class schedules please contact us via training@ncsdata.net