EXAMS: WHAT TO KNOW
• Relates to: CWNA
Understand and be able to define concepts of RF behavior including:
- Gain
- Loss
- Reflection
- Refraction
- Diffraction
- Scattering
- VSWR
- Amplification & attenuation
Understand and be able to define concepts of RF antennae
including:
- Visual LOS
- RF LOS
- The Fresnel Zone
- Intentional Radiator
- EIRP
- Wave propagation
Understand the RF units
of measurement and apply the basic calculations of RF mathematics including:
- Watt
- Milliwatt
- Decibel (dB)
- dBm
- dBi
Identify the various uses of spread spectrum
technologies including:
- Wireless LANs
- Wireless PANs
- Wireless WANs
Understand, compare, and contrast the different types of
spread spectrum technologies including:
Identify the various characteristics
of spread spectrum technology including:
- Co-location
- Channels
- Dwell time
- Throughput
- Hop time
Understand and identify the various FCC regulations
applicable to WLANs, including:
- Spectrum technology
- Power outputs
- Frequencies
- Bandwidths
- Hop times
- Dwell times
Wireless LAN Technologies - 17%
Identify the methods incorporated in authentication and
association including:
- Passive scanning
- Active scanning
- Authentication
- Association
- Open system authentication
- Shared key authentication
- Secret keys
and certificates
- AAA Support
Understand and identify
the settings for WLANs including:
- Service sets
- BSS
- ESS
- IBSS
- SSID
- Infrastructure mode
- Ad-hoc mode
- Roaming
Understand how WLANs
implement power management and the implications of doing so including:
- PSP Mode
- CAM
- Beacons
- TIM
- ATIM
- ATIM Windows
Understand and identify the various characteristics of
WLAN datalink frames including:
- The difference between wireless LAN and Ethernet frames
- Layer 3
Protocols supported by wireless LANs
Understand and
identify the various modes of operation WLANs use to move data including:
- DCF
- PCF
- CSMA/CA vs. CSMA/CD
- Interframe spacing
- RTS/CTS
- Dynamic Rate Selection
- Modulation and coding
Wireless LAN Implementation and Management - 30%
Understand and identify the uses for WLAN technology including:
- Data access role
- Extension of existing networks into remote locations
- Building-to-building connectivity
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