CWNP CWNA-108 - Certified Wireless Network Administrator Exam

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Total 75 questions

An RF signal sometimes bends as it passes through some material other than free space. What is the term that describes this behavior?

  • A. Refraction
  • B. Warping
  • C. Scattering
  • D. Reflection


Answer : A

What can an impedance mismatch in the RF cables and connectors cause?

  • A. Increased range of the RF signal
  • B. Fewer MCS values in the MCS table
  • C. Increased amplitude of the RF signal
  • D. Excessive VSWR


Answer : D

What factor does not influence the distance at which an RF signal can be effectively received?

  • A. Receiving stationג€™s radio sensitivity
  • B. Receiving stationג€™s output power
  • C. Transmitting stationג€™s output power
  • D. Free Space Path Loss


Answer : A

A WLAN transmitter that emits a 50 mW signal is connected to a cable with 3 dB loss. If the cable is connected to an antenna with 9dBi gain, what is the EIRP at the antenna element?

  • A. 26 dBm
  • B. 13 dBm
  • C. 23 dBm
  • D. 10 dBm


Answer : C

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

  • A. A Fade Margin is unnecessary on a long-distance RF link if more than 80% of the first Fresnel zone is clear of obstructions.
  • B. The Fade Margin is a measurement of signal loss through free space and is a function of frequency and distance.
  • C. Fade Margin is an additional pad of signal strength designed into the RF system to compensate for unpredictable signal fading.
  • D. The Fade Margin of a long-distance radio link should be equivalent to the receiverג€™s low noise filter gain.


Answer : C

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Total 75 questions