Question: What is the primary purpose of the Nudr_DM_Query service operation in the 5G System?
Option 1: To request a set of data from UDR based on Data Set Identifier and Data Key(s).
Option 2: To update a set of data in UDR using Data Subset Identifier(s) and Data Sub Key(s).
Option 3: To delete a set of data from UDR based on Data Key(s) and Data Subset Identifier(s).
Option 4: To authenticate NF service consumer with UDR.
Explanation: The Nudr_DM_Query service operation is used by an NF service consumer to request a specific set of data from the UDR, utilizing the Data Set Identifier and Data Key(s) as inputs. This aligns with the description provided in the specification, highlighting its role in retrieving data from the UDR for further processing or usage within the 5G System.