Certified Wireless Network Administrator (CWNA™)
The CWNA™ certification covering the 2002 objectives will certify that successful candidates know the fundamentals of RF behavior, can describe the features and functions of wireless LAN components, and have the skills needed to install, configure, and troubleshoot wireless LAN hardware peripherals and protocols. A typical candidate should have Network+, CCNA, CNA, or MCP certification or equivalent knowledge, although these certifications are not required.

CWNA training courses The skills and knowledge measured by this examination are derived from a survey of wireless networking experts and professionals. The results of this survey were used in weighing the subject areas and ensuring that the weighting is representative of the relative importance of the content.

To keep up-to-date with the CWNP program, please join our mailing list.

The following chart provides the breakdown of the CWNA exam as to the weight of each section of the exam.

Subject Area % of Exam
Radio Frequency (RF) Technologies 24%
Wireless LAN Technologies 17%
Wireless LAN Implementation and Management 30%
Wireless LAN Security 16%
Wireless LAN Industry and Standards 13%
Total 100%

Radio Frequency (RF) Technologies - 24%

1.1. RF Fundamentals

1.1.1. Define and apply the basic concepts of RF behavior
  • Gain
  • Loss
  • Reflection
  • Refraction
  • Diffraction
  • Scattering
  • VSWR
  • Amplification & attenuation
1.1.2. Understand the applications of basic RF antenna concepts
  • Visual LOS
  • RF LOS
  • The Fresnel Zone
  • Intentional Radiator
  • EIRP
  • Wave propagation
1.2. RF Math

1.2.1. Understand and apply the basic components of RF mathematics
  • Watt
  • Milliwatt
  • Decibel (dB)
  • dBm
  • dBi
1.3. Spread Spectrum Technologies

1.3.1. Identify some of the different uses for spread spectrum technologies
  • Wireless LANs
  • Wireless PANs
  • Wireless WANs
1.3.2. Comprehend the differences between, and apply the different types of spread spectrum technologies
  • FHSS
  • DSSS
1.3.3. Identify and apply the concepts which make up the functionality of spread spectrum technology
  • Co-location
  • Channels
  • Dwell time
  • Throughput
  • Hop time
1.3.4. Identify the laws set forth by the FCC that govern spread spectrum technology, including power outputs, frequencies, bandwidths, hop times, and dwell times.

Wireless LAN Technologies - 17%

2.1. 802.11 Network Architecture

2.1.1. Identify and apply the processes involved in authentication and association
  • Passive scanning
  • Active scanning
  • Authentication
  • Association
  • Open system authentication
  • Shared key authentication
  • Secret keys and certificates
  • AAA Support
2.1.2. Recognize the following concepts associated with wireless LAN service sets
  • BSS
  • ESS
  • IBSS
  • SSID
  • Infrastructure mode
  • Ad-hoc mode
  • Roaming
2.1.3. Understand the implications of the following power management features of wireless LANs
  • PSP Mode
  • CAM
  • Beacons
  • TIM
  • ATIM
  • ATIM Windows
2.2. Physical and MAC Layers

2.2.1. Understand and apply the following concepts surrounding wireless LAN Frames
  • The difference between wireless LAN and Ethernet frames
  • Layer 3 Protocols supported by wireless LANs
2.2.2. Specify the modes of operation involved in the movement of data traffic across wireless LANs
  • DCF
  • PCF
  • Interframe spacing
  • Dynamic Rate Selection
  • Modulation and coding

Wireless LAN Implementation and Management - 30%

3.1. Wireless LAN Application

3.1.1. Identify the technology roles for which wireless LAN technology is an appropriate technology application
  • Data access role
  • Extension of existing networks into remote locations
  • Building-to-building connectivity
  • Last mile data delivery
  • Flexibility for mobile users
  • SOHO Use
  • Mobile office, classroom, industrial, and healthcare
3.2. Hardware Management

3.2.1. Identify the purpose of the following infrastructure devices and explain how to install, configure, and manage them
  • Access points
  • Wireless bridges
  • Wireless workgroup bridges
3.2.2. Identify the purpose of the following wireless LAN client devices and explain how to install, configure, and manage them
  • PCMCIA cards
  • Serial and Ethernet converters
  • USB devices
  • PCI/ISA devices
3.2.3. Identify the purpose of the following wireless LAN gateway devices and explain how to install, configure, and manage them
  • Residential gateways
  • Enterprise gateways
3.2.4. Identify the basic attributes, purpose, and function of the following types of antennas
  • Omni-directional/dipole
  • Semi-directional
  • High-gain
3.2.5. Describe the proper locations and methods for installing antennas.

3.2.6. Explain the concepts of polarization, gain, beamwidth, and free-space path loss as they apply to implementing solutions that require antennas.

3.2.7. Identify the use of the following wireless LAN accessories and explain how to install, configure, and manage them
  • Power over Ethernet devices
  • Amplifiers
  • Attenuators
  • Lightning arrestors
  • RF connectors and cables
  • RF splitters
3.3. Troubleshooting Wireless LAN Installations

3.3.1. Identify, understand, correct or compensate for the following wireless LAN implementation challenges
  • Multipath
  • Hidden node
  • Near-Far
  • RF interference
  • All-band interference
  • System throughput
  • Co-location throughput
  • Weather
3.3.2. Explain how antenna diversity compensates for multipath.

3.4. RF Site Survey Fundamentals

3.4.1. Identify and understand the importance and process of conducting a thorough site survey.

3.4.2. Identify and understand the importance of the necessary tasks involved in preparing to do an RF site survey
  • Gathering business requirements
  • Interviewing management and users
  • Defining security requirements
  • Site-specific documentation
  • Documenting existing network characteristics
3.4.3. Identify the necessary equipment involved in performing a site survey
  • Wireless LAN equipment
  • Measurement tools
  • Documentation
3.4.4. Understand the necessary procedures involved in performing a site survey
  • Non-RF information
  • Permits and zoning requirements
  • Outdoor considerations
  • RF related information
  • Interference sources
  • Connectivity and power requirements
3.4.5. Identify and understand site survey reporting procedures
  • Requirements
  • Methodology
  • Measurements
  • Security
  • Graphical documentation
  • Recommendations

Wireless LAN Security - 16%

4.1. Protection

4.1.1. Identify the strengths, weaknesses and appropriate uses of the following wireless LAN security techniques
  • WEP
  • AES
  • Filtering
  • Emerging security techniques
4.2. Attacks

4.2.1. Describe the following types of wireless LAN security attacks, and explain how to identify and prevent them
  • Passive attacks (eavesdropping)
  • Active attacks (connecting, probing, and configuring the network)
  • Jamming attacks
  • Man-in-the-middle attacks
4.3. Security Solutions

4.3.1. Given a wireless LAN scenario, identify the appropriate security solution from the following available wireless LAN security solutions
  • WEP key solutions
  • Wireless VPN
  • Key hopping
  • AES based solutions
  • Wireless gateways
  • 802.1x and EAP
4.3.2. Explain the uses of the following corporate security policies and how they are used to secure a wireless LAN
  • Securing sensitive information
  • Physical security
  • Inventory and audits
  • Using advanced solutions
  • Public networks
4.3.3. Identify how and where the following security precautions are used to secure a wireless LAN
  • WEP
  • Cell sizing
  • Monitoring
  • User authentication
  • Wireless DMZ

Wireless LAN Industry and Standards - 13%

5.1. Standards

5.1.1. Identify, apply and comprehend the differences between the following wireless LAN standards
  • 802.11
  • 802.11b
  • 802.11a
  • 802.11g
  • Bluetooth
  • HomeRF
5.2. Organizations & Regulations

5.2.1. Understand the roles of the following organizations in providing direction and accountability within the wireless LAN industry
  • FCC
  • IEEE
  • WECA
  • IrDA
  • ETSI
5.2.2. Identify the differences between the ISM and UNII bands

5.2.3. Identify and understand the differences between the power output rules for point-to-point and point-to-multipoint links

5.2.4. Identify the basic characteristics of infrared wireless LANs

Certified Wireless Network Professional home page.

Copyright LEVER Technology Group PLC