Which organization is responsible for certifying that products and technology satisfy Wi-Fi interoperability?

Under ideal conditions, which frequency band will have the farthest usable range?

You are designing a wireless network that requires smooth roaming performance and redundant coverage from at least two access points at every location.
What ensures that both of these functional requirements are satisfied?

Which Mist device is designed exclusively for Bluetooth Low Energy?

What is the base subscription required to get started with a Mist access point?