Question: What is the purpose of the Connection Resume procedure initiated by the UE in RRC_INACTIVE state?
Option 1: To transition to RRC_IDLE state
Option 2: To perform a security check with the NG-RAN
Option 3: To request a new IP address from the AMF
Option 4: To transition to RRC_CONNECTED state or for Small Data Transmission
Explanation: The Connection Resume procedure is used by the UE in RRC_INACTIVE state to either transition to RRC_CONNECTED state or for Small Data Transmission, as specified in TS 38.300. This allows the UE to resume communication with the NG-RAN and access network resources without having to re-establish a new connection from scratch.