Portland State University
 
Information Technology
Course Number: IT104
CWNA - Certified Wireless Network Administrator

The wireless network market continues to grow at a rapid pace. Properly trained and certified individuals are needed to make wireless networks secure, cost-effective, and reliable. Develop highly demanded wireless networking skills through our instructor-led training, including classroom lecture, demonstration and hands-on lab. Our industry-experienced instructors train you on the skills necessary to perform in the real world. In addition, this course prepares students for the industry leading wireless certification, CWNA.

Our top-notch information technology and computer training meets the growing demands of the Portland Metro area including Vancouver (WA), Southwestern Washington, and Salem, Oregon communities.

"If any one technology has emerged in the past few years that will be explosive in its impact it's 802.11."

-Bill Gates, Microsoft

Overview:

This course provides an overview of Wireless Local Area Network technology and hands-on experience using WLAN equipment and software. Lectures, demonstrations and hands-on labs help you understand and deploy wireless LANs. You also learn about 802.11 Wireless LANs, RF Fundamentals, installation and troubleshooting of wireless LANs, and wireless security.

Audience & Prerequisite: This course targets both novice and experienced networking professionals who wish to gain a solid understanding of wireless networking to complement their knowledge of traditional wired networking.

For more details, please contact our Technical Adviser at 503-725-2395 or email it@pdx.edu.

COURSE OUTLINE:

Radio Frequency (RF) Fundamentals

  • RF behavior and properties
  • Principles of antennas
  • RF math calculations
  • Link budgets and system operating margins
Spread Spectrum Technologies
  • Uses of Spread Spectrum
  • Frequency Hopping (FHSS)
  • Direct Sequencing (DSSS)
  • Orthogonal Frequency Division Multiplexing (OFDM)
  • Packet Binary Convolutional Coding (PBCC)
  • Comparing DSSS, FHSS, PBCC, and OFDM
  • Co-location and throughput analysis
  • Chipping code, processing gain, and spreading functions
  • Channels, data rates, ranges, and comparisons
  • Channel reuse in pure and mixed environments

Hardware Installation, Configuration, and Management

  • Access points
  • Wireless bridges
  • Wireless workgroup bridges
  • Client devices and accessories
  • Residential gateways
  • Enterprise gateways
  • Wireless LAN switches
  • PoE Switches and patch panels
  • VoWiFi systems
  • Wireless Routers

Troubleshooting Wireless LANs

  • Multipath
  • Hidden node
  • Near/Far
  • Identifying and resolving interference problems
  • Maximizing system throughput
  • Maximizing co-location throughput
  • Range considerations

Antennas and Accessories

  • Omni-directional
  • Semi-directional
  • Highly-directional
  • Determining coverage areas
  • Proper mounting and safety
  • Performing outdoor/indoor installations
  • Power over Ethernet (802.3af and proprietary implementations)
  • Cables and connector usage requirements
  • Amplifiers, attenuators, lightning arrestors, and splitters
  • Fresnel Zones and Free Space Path Loss
  • Interference, Fading, and Multipath

Wireless Network Management

  • Authentication, Authorization, and Accounting (AAA) functions
  • Bandwidth control
  • Wireless Network Management features and products
Physical and MAC Layers
  • Differences between wireless and Ethernet frames
  • Collision handling and the use of RTS/CTS
  • Throughput and dynamic rate selection
  • Analysis of DCF mode and the CSMA/CA protocol
  • How frame fragmentation works and its affects on throughput
Wireless LAN Security
  • Analysis of 802.11 security including WEP, WPA, 802.1x/EAP types, and 802.11i
  • Available security solutions at Layer2, 3, & 7
  • Types of network attacks, and protecting the network from attacks
  • Corporate security policies including baseline practices, and common security solutions
  • Security recommendations

Organizations and Standards

  • FCC rules
  • Frequency ranges and channels
  • IEEE 802.11 family of standards
  • Wireless LAN organizations
  • Proper application of WLANs in distribution and access roles
  • Interoperability standards

802.11 Network Architecture

  • Joining a wireless LAN
  • Authentication and association
  • Basic Service Sets
  • Extended Service Sets
  • Independent Basic Service Sets
  • Distribution systems
  • Roaming in a wireless LAN
  • Scanning modes using Beacons and Probe Frames
  • Power management features
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 FCC/FAA rules regarding towers
  • Understanding safety hazards
  • Using appropriate hardware and software to perform the survey