Which SLE would you use to determine Wi-Fi interference?

Which statement is correct about the Mist API?

A customer wants to physically wire their interior automated sliding doors to Mist APs to directly control location access to certain office areas.
In this scenario, which Mist AP capability allows them to accomplish this task?

What are two requirements to connect an AP to the Mist Cloud? (Choose two.)

Which Juniper Mist device enables seamless roaming for large campus networks through on-premises tunneling?