Question: What is the primary purpose of the Nudm_UECM_Get service operation in the 5G System (5GS)?
Option 1: To request the UDM to update the NF ID or SMS address of the NF serving the UE.
Option 2: To retrieve the SUPI or GPSI information from the UDM for a specific UE.
Option 3: To register a new PDU Session ID in the UDM for a UE.
Option 4: To request the UDM to get the NF ID or SMS address of the NF serving the UE, based on the provided UE ID and NF Type.
Explanation: The Nudm_UECM_Get service operation is used by an NF consumer to request the UDM to retrieve the NF ID or SMS address of the NF serving a specific UE. This operation requires the UE ID and NF Type as inputs, and returns the corresponding NF ID or SMS address, along with other optional information such as Access Type, Analytics ID(s), SUPI, GPSI, and PDU Session ID(s).