Certified Wireless Network Administrator (CWNA)

CWNAw

Certified Wireless Network Administrator

Course Overview

The Enterprise Wireless LAN Administration 5.0 course, whether in an academic format or a 4 or 5-day fast-track format, provides the networking professional a complete foundation of knowledge for entering into or advancing in the wireless networking industry. From basic RF theory to 802.11 frame exchange processes, this course delivers hands-on training that will benefit the novice as well as the experienced network professional.

Course Duration: 4 – 5 days

Prerequisites

Basic networking knowledge, including OSI model and IP subnetting

Course Outline

The following list contains the materials covered in the lecture portion of the course.

Introduction to WLAN Standards

    • Introduction to WLAN industry organizations
    • Discussion of protocol standards and compliance
    • Overview of 802.11 standard and amendments
    • Discussion of additional networking standards
  • Regulatory domains and their impact

 

Radio Frequency (RF) Fundamentals

    • RF propagation
    • Properties of RF waves
    • Types of power loss and environmental impact on radio waves
    • Spread spectrum, modulation, and coding
  • Channels and bandwidth

 

Antennas

    • Antenna fundamentals
    • Polarization and gain
    • Types of WLAN antennas
    • Antenna systems
    • Antenna implementation and safety
  • RF cables, connectors, and accessories

RF Math

    • RF units of measurement
    • Basic RF math
    • RF signal measurements
  • Link budgets

 

RF Regulatory Domains

    • Regulatory domains
    • Regulatory bodies and frequency bands
  • Output power rules

 

Wireless LAN Operation

  • Basic WLAN hardware
  • Basic operating modes
  • WLAN hardware
  • WLAN connectivity
  • WLAN architecture
  • Wireless Network Management Systems (WNMS)

Power over Ethernet (PoE)

  • PoE device types
  • Powered Device (PD)
  • Power Sourcing Equipment (PSE)
  • Power delivery
  • Planning for PoE
  • PoE standards
  • Powering 802.11n devices

802.11 Service Sets

    • Service set types
    • Authentication and association
    • Network infrastructure
    • Roaming within a WLAN
  • Load-balancing

 

Basic WLAN Analysis

  • Protocol analysis
  • 802.11 frame types
  • Protection mechanisms
  • Power saving operations
  • Transmission rates

Coordinating Frame Transmissions

  • Introducing CSMA/CA
  • Distributed Coordination Function (DCF)
  • Hybrid Coordination Function (HCF)

802.11n Amendment

  • Challenges addressed by the high throughput (HT) PHY
  • HT (802.11n) PHY and MAC layer enhancements
  • MIMO and SISO systems
  • HT coexistence mechanisms
  • HT integration and deployment
  • HT site surveying and analysis

Site Surveying

    • RF site survey defined
    • Gathering information and resources
    • Spectrum analysis for site surveys
    • Site survey types
    • Survey considerations
  • Survey deliverables

 

Basic WLAN Security

    • Importance of WLAN security
    • Security policy
    • Legacy WLAN security mechanisms
    • Modern WLAN security mechanisms
  • Baseline WLAN security practices

 

 
Potential Hands-on Lab Exercises

  • Exploring 802.11

 

    • Understanding standard documents
    • Viewing the various sections
  • Mastering the terminology
  • 2.4 GHz vs. 5 GHz Congestion

 

  • Viewing activity in a spectrum analyzer
  • Viewing active networks in a Wi-Fi Finder (inSSIDer)
  • Antennas

 

  • Changing antennas for different results
  • Viewing RSSI

 

  • RSSI values of different adapters at the same location
  • 2.4 GHz Amplified

 

  • The impact of amplifiers vs. antenna gain
  • Configuring Aps

 

  • Configuring an autonomous AP
  • Configuring a lightweight AP
  • Configuring Clients

 

  • Configuring connection profiles
  • Configuring security
  • Using PoE

 

  • Using a mid-span PoE injector
  • Protocol Analysis

 

  • Capturing frames
  • Analyzing frames
  • Spectrum Analysis

 

    • Viewing activity
  • Understanding signatures
  • RTS/CTS Impact

 

  • Protection mechanism configuring
  • Performance comparisons
  • 802.11n Impact

 

  • Spectrum view with an 802.11n AP
  • Spectrum view with an 802.11a/g AP
  • Site Survey Tools

 

  • Using tablet- or phone-based site survey software
  • Using laptop site survey software
  • Using predictive site survey software
  • Configuring Basic Security

 

  • Configuring a RADIUS server
  • Configuring an AP to use the RADIUS server
  • Configuring a client to connect to the AP