問題文
A retailer finds that the handsets of its own staff, which stay joined to the corporate network all day, are the ones whose position the location platform loses most often. What does the guide give as the reason?
選択肢
- A device that has joined calls out less often in order to spare its battery, and it calls out not at all once it has gone into its deepest saving state, so there is nothing left for the platform to measure.
- A device that has joined is measured by the one access point it joined rather than by the several that hear it, so a single reading has to carry the position and that reading moves about.
- A device that has joined is counted against the ceiling on how many devices may be drawn at once, and the staff handsets are pushed out of that count by the devices of the visitors.
- A device that has joined is placed from the strength that the controller reports rather than from what the access points hear, and the controller reports it only while the device is sending.