CWNA-108 Certified Wireless Network Administrator

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Showing 1–3 of 10 questions

Question 1

When implementing PoE, what role is played by a switch?

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  • PSE

  • Midspan injector

  • PD

  • Power splitter

Question 2

In a long-distance RF link, what statement about Fade Margin is true?

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  • A Fade Margin is unnecessary on a long-distance RF link if more than 80% of the first Fresnel zone is clear of obstructions.

  • The Fade Margin is a measurement of signal loss through free space and is a function of frequency and distance.

  • Fade Margin is an additional pad of signal strength designed into the RF system to compensate for unpredictable signal fading.

  • The Fade Margin of a long-distance radio link should be equivalent to the receiver’s low noise filter gain.

Question 3

You are troubleshooting a problem with interference from a non-802.11 device. Given that the device is not a WLAN device, you cannot use a protocol analyzer and have chosen to use a spectrum analyzer. You want to view the signal from the interfering device over time to see the activity that is generating.

What common spectrum analyzer view should you use for this analysis?

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  • APs

  • Waterfall/Spectrogram

  • Real-time FFT

  • Clients