SpectroTech

CWNA Course

CWNA Course

Enterprise Wi-Fi Administration, Outline v7.0 – Official course for the CWNA-107 Certification Exam

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CWNA Introduction

The CWNA – Enterprise Wireless LAN Administration course, whether in an academic format or a 4-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.

Upcoming classes:

Melbourne:
15 – 18 Oct
Sydney:
29 Oct – 1 Nov

  • CWNAAssociated Certifications: CWNA – Certified Wireless Network Administrator
  • Price: $3,250.00 (ex) or View Bundle Price options
  • Duration: 4 days, Classroom
  • Delivery Options : 4 day fast track or 1 day per week over 4 weeks
  • Availability: Sydney, Melbourne, Brisbane and Canberra. Perth coming in Q2 2018
  • Prerequisites: Basic networking knowledge, including OSI model and IP subnetting

CWNA Course Outline

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

Introduction to WLAN Standards

  • Introduction to WLAN industry organisations
  • Discuss protocol standards and compliance
  • Overview of 802.11 standard and amendments
  • Discuss additional networking standards that are commonly used to enhance WLANs
  • 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
  • Polarisation and gain
  • Types of WLAN antennas
  • Antenna systems
  • Antenna implementation and safety
  • RF cables, connectors, and accessories

RF Math

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

Regulatory Domains

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

WLAN Operation

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

Power over Ethernet

  • PoE device types
  • Power delivery
  • Planning for POE
  • PoE standards

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 mechanism
  • Power saving operations
  • Transmission rates

Coordinating Frame Transmissions

  • Introducing CSMA/CA
  • Distributed Coordination Function (DCF)
  • Quality of Service (QoS)

Modern 802.11 PHYs

  • HT (802.11n) PHY and MAC layer enhancements
  • MIMO and SISO systems
  • HT coexistence mechanisms
  • HT integration and deployment
  • HT site surveying and analysis
  • VHT (802.11ac) PHY and MAC layer enhancements

Wireless Site Survey Fundamentals

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

Basic WLAN Security

  • The importance of WLAN security
  • Security policy
  • Legacy WLAN security mechanisms
  • Modern WLAN security mechanisms
  • Baseline WLAN security practices

Modern Challenges (BYOD and Guest Access)

  • Mobile Device Management (MDM)
  • Bring Your Own Device (BYOD)
  • Guest access
  • High density wireless basics

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 antenna’s 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 and autonomous AP
  • Configuring a lightweight AP

Configuring Clients

  • Configuring connection profiles
  • Configuring security

Protocol Analysis

  • Capturing frames
  • Analyzing frames

Spectrum Analysis

  • Viewing activity
  • Understanding signatures

RTS/CTS Impact

  • Protection mechanism configuration
  • Performance comparisons

802.11n/ac Impact

  • Spectrum view with an 802.11n/ac  AP
  • Spectrum view with an 802.11a/g AP

Site Survey

Two specific classes of site survey methodology exist and are used in the WLAN market today. This exercise is separated into two sections identifying each methodology:

  • Section A: Manual site surveys (sometimes called the walkabout)
  • Section B: Predictive analysis (sometimes called automated site surveying)

Within each class exist two distinct categories. Manual site surveying can be categorized as active mode or passive mode, one or both modes can be used at any given time.

Predictive analysis software tools are based on a mathematical model of a facility blueprint and can be performed in two distinct ways. First, importing an AutoCAD (vector graphic) drawing allows the predictive analysis software tool to understand detailed complex layers of a facility’s construction, including wall attenuation, attenuation between floors, and channel interference. Second, importing of raster graphics, such as .jpg or .bmp, allows for faster but often less accurate modeling.

Neither methodology is 100% accurate, since each has its own individual weaknesses. Used together, the surveyor can create a more complete RF snapshot of any facility.

In this exercise, students will conduct both manual and predictive analysis surveying, using software and hardware tools (determined by the instructor or specific class needs).

Basic WLAN Security

  • Viewing packets without security
  • Configuring an AP to use WPA2-Personal
  • Connecting to the AP with a client
  • Viewing packet with security

 


 

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