5.3 Troubleshoot Location Accuracy 300-430 Practice Questions (Page 2)

Questions 6–10

1. 6application · medium

   A warehouse uses location tracking for robots. The location engine reports that the robots' positions are consistently off by 2 meters to the north. The APs are mounted on the ceiling, and the antenna orientation has been verified as correct. The calibration data was collected during the initial deployment, and since then, a new mezzanine floor has been installed, which blocks some of the AP signals. What is the most likely cause of the consistent offset?

   • AThe new mezzanine floor has changed the RF propagation, and the calibration data is no longer accurate.
   • BThe location engine's averaging window is too long, causing a lag in the reported position.
   • CThe APs are not transmitting at high enough power to reach the robots.
   • DThe robots are moving too fast for the location engine to track accurately.
   Reveal Solution Discussion Select an answer first
2. 7foundation · easy

   When validating AP placement for location services, which factor is most important to ensure accurate location calculations?

   • AAPs are positioned to provide overlapping coverage of the area
   • BAPs are mounted at floor level to be closer to clients
   • CAPs are placed as far apart as possible to avoid interference
   • DAPs are configured with the same channel to simplify management
   Reveal Solution Discussion Select an answer first
4. 8application · medium

   A museum's location system guides visitors with an app. The location accuracy is poor in a hall with high ceilings and large glass windows. The APs are mounted on the walls at a height of 3 meters. A site survey shows that the APs receive strong signals from the visitors' phones. What is the most likely cause of the poor accuracy?

   • AThe visitors' phones are transmitting at too low a power, so the APs cannot measure RSSI accurately.
   • BThe location engine is using too short a dwell time, causing it to miss the visitors' signals.
   • CThe AP placement on the walls creates a poor geometric spread for triangulation, especially with high ceilings and reflective glass.
   • DThe glass windows cause signal absorption, weakening the signals before they reach the APs.
   Reveal Solution Discussion Select an answer first
5. 9foundation · easy

   Which tool is specifically designed to identify sources of RF interference that could affect location accuracy?

   • APacket sniffer
   • BLocation heatmap
   • CSpectrum analyzer
   • DClient simulator
   Reveal Solution Discussion Select an answer first
6. 10application · medium

   A hospital uses Cisco wireless location services to track infusion pumps. The location heatmap shows a consistent offset of about 5 meters to the east for all tracked pumps in a long corridor. The APs are mounted on the ceiling in a straight line along the corridor, and the antenna orientation was verified as correct. The calibration data was collected during the initial deployment two years ago, and since then several walls have been added near the corridor. What should you do first to improve location accuracy?

   • AIncrease the transmit power of the APs to overcome the attenuation caused by the new walls.
   • BRecalibrate the location environment to account for the new walls and changed RF propagation.
   • CChange the location algorithm to use a different averaging method.
   • DMove the APs closer together to increase the density of the location grid.
   Reveal Solution Discussion Select an answer first