5.3 Troubleshoot Location Accuracy 300-430 Practice Questions (Page 5)

Questions 21–25

1. 21application · medium

   A hospital's location system reports a patient-worn tag with a distance error of 8 meters in a corridor where the expected accuracy is 3 meters. The RSSI values from the tag fluctuate rapidly. The APs are correctly placed and calibrated. Which adjustment is most appropriate to reduce the distance error?

   • AIncrease the dwell time so the location engine averages more RSSI samples before computing a position.
   • BReduce the averaging window to make the location engine respond faster to the tag's movement.
   • CLower the RSSI threshold to include weaker signals from more APs, increasing the number of measurements.
   • DDisable the location algorithm's smoothing filter to eliminate lag in the reported position.
   Reveal Solution Discussion Select an answer first
2. 22foundation · easy

   Which client behavior is most likely to reduce the accuracy of a Wi-Fi location estimate?

   • AThe client has a strong signal to one access point
   • BThe client frequently roams between access points
   • CThe client is stationary for a long period
   • DThe client uses a VPN connection
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4. 23foundation · easy

   A location system is less accurate in a building with thick concrete walls. Which RF factor is the primary cause?

   • ASignal attenuation due to absorption by concrete
   • BSignal amplification by concrete
   • CSignal frequency shift
   • DSignal polarization shift
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5. 24application · medium

   A manufacturing plant's location system tracks tools. The location error is high in an area with large metal racks. The APs are mounted on the ceiling with antennas pointing down. A spectrum analyzer shows no interference. Which action is most likely to improve accuracy?

   • AReposition the APs to the sides of the racks and orient antennas to minimize reflections from the metal surfaces.
   • BDisable the location algorithm's averaging to avoid using stale data from the racks.
   • CIncrease the transmit power of the APs to penetrate the metal racks.
   • DLower the RSSI threshold to include weaker signals that may have traveled around the racks.
   Reveal Solution Discussion Select an answer first
6. 25foundation · easy

   A location system reports a confidence level of 90% for a client's estimated position. What does this confidence level represent?

   • AThe accuracy of the RSSI measurements in decibels
   • BThe percentage of time the client is connected to the Wi-Fi network
   • CThe percentage of access points that participated in the location calculation
   • DThe probability that the true location falls within a defined radius of the estimate
   Reveal Solution Discussion Select an answer first