Free CWNA-110 – Certified Wireless Network Administrator Practice Test Question

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  Refraction

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  Warping

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  Scattering

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  Reflection
  
  

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  Increased range of the RF signal

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  Fewer MCS values in the MCS table

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  Increased amplitude of the RF signal

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  Excessive VSWR
  
  

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  Receiving station’s radio sensitivity

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  Receiving station’s output power

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  Transmitting station’s output power

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  Free Space Path Loss
  
  

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  26 dBm

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  13 dBm

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  23 dBm
  

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  10 dBm
  
  

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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.

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

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

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

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  Directed Radiation

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  Beam Digression

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  Passive Gain

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  Active Amplification
  
  

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  Dipole and yagi

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  Grid and sector

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  Patch and panel

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  Dish and grid
  
  

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  Horizontal and vertical beamwidth are calculated at the points where the main lobe decreases power by 3 dB.

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  The beamwidth patterns on an antenna polar chart indicate the point at which the RF signal stops propagating.

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  When antenna gain is lower, the beamwidth is also lower in both the horizontal and vertical dimensions.

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  Vertical beamwidth is displayed (in degrees) on the antenna’s Azimuth chart.
  
  

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  Operating frequency

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  MU-MIMO capabilities of the bridges

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  Receive antenna gain

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  Transmit power
  
  

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  WPA2 is the standard that defines security for WLANs.

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  WPA2 is a certification created by the Wi-Fi Alliance that validates devices correctly implement CCMP/AES.

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  WPA2 is the second version of WPA and it enhances security through the use of TKIP instead of WEP.

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  WPA2 is specified in the 802.11 standard as implementing CCMP/AES.