Best Practices•Define Coverage Requirements
Before performing the survey, establish the minimum signal strength, minimum SNR, and desired AP coverage overlap requirements the network design must meet in all locations. Recommended values are a minimum -67 dBmRSSI, minimum 25 dB SNR, and 10-20 feet of overlap at these signal levels between APs. These values can be carried over from a predictive site survey, if performed.
https://www.ciscolive.com/c/dam/r/ciscolive/emea/docs/2018/pdf/BRKEWN-2019.pdf
Best Practices•Define Coverage Requirements
Before performing the survey, establish the minimum signal strength, minimum SNR, and desired AP coverage overlap requirements the network design must meet in all locations. Recommended values are a minimum -67 dBmRSSI, minimum 25 dB SNR, and 10-20 feet of overlap at these signal levels between APs. These values can be carried over from a predictive site survey, if performed.
D – it’s -67 dBm minimum RSSI for any WLAN
it’s -67 for voip
answer should be D, -80 dBm. which is also in question number 23 of this reviewer.
It.s true