Question: What is the primary purpose of the Nsmf_PDUSession_SendMOData service operation in the 5G System (5GS)?
Option 1: To receive MO Small Data from the SMF and forward it to the UE.
Option 2: To send MO Small Data received from the UE to the SMF for further processing.
Option 3: To establish a new PDU session between the UE and the network.
Option 4: To release an existing PDU session between the UE and the network.
Explanation: The Nsmf_PDUSession_SendMOData service operation is used by the AMF to forward MO Small Data received from the UE in NAS procedure to the SMF. This allows the SMF to process the data and take necessary actions, highlighting its role in practical telecom scenarios involving mobile-originated small data transmission.