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CWNA flash cards
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- 1When an RF wave encounters obstacles smaller than the wavelength and reflective in nature, what is likely to occur?Scattering occurs when the RF wave encounters small obtacles (in relation to the wavelength) that are reflective in character. Reflection occurs when the RF wave encounters obstacles larger than the wavelength. Refraction occurs as the RF wave passes through a medium and bends as it traverses through it.
- 2What metric ultimately determines the data rate that can be achieved between an AP and a STA?SNR
- 3What is the output of a link budget?A link budget includes the transmit power, antenna gain, cable and connector losses, FSPL, and receiver sensitivity. The results of a link budget is an SOM.
- 4A WLAN transmitter that emits a 20 mW signal is connected to a cable with 6 dB loss. If the cable is connected to an antenna with 12 dBi gain, what is the EIRP at the antenna element?The calculation can be completed with the cumulative nature of dB mat. -6 dB added to +12 dB is equal to +6 dB. Now, 20 mW +6 dB is equal to 80 mW (20 mW * 2 * 2).
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- Cert IT Karteikarten am CWNA flash cards, erstellt von Nicholas LaRose am 09/03/2020.
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- Nicholas LaRose
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