Question: What is the primary purpose of the UAE_DAASupport API in the context of Uncrewed Aerial System (UAS) communications?
Option 1: To establish a direct link between the UAS device and the cellular network for voice services.
Option 2: To manage subscription profiles for UAS operators within the network.
Option 3: To facilitate firmware updates for UAS devices over-the-air.
Option 4: To enable communication between the UAS application server and the UAE server for DAA policy and notification exchange.
Explanation: The correct answer is Option 4 because the UAE_DAASupport API is specifically designed to facilitate communication between the UAS application server and the UAE server. This communication is focused on exchanging information related to Detect-And-Avoid (DAA) application policies and sending/receiving relevant notifications, which is crucial for safe and regulated UAS operations within the framework of telecom networks.