Question: What triggers the increment of the 'Number of parameter deletion requests' measurement in a 5G network, as per UDM (User Data Management) functionality?
Option 1: Successful deletion of a parameter by the UDM.
Option 2: Receipt of an Nudm_ParameterProvision_Delete request by the UDM from a consumer Network Function (e.g., NEF).
Option 3: Transmission of an Nudm_ParameterProvision_Delete response by the UDM to a consumer NF indicating a failed parameter deletion.
Option 4: Periodic synchronization between UDM and other network functions.
Explanation: The correct answer is Option 2 because, according to the provided context, the 'Number of parameter deletion requests' measurement increments upon the receipt of an Nudm_ParameterProvision_Delete request by the UDM from a consumer NF (such as NEF), indicating a request for parameter deletion has been made, regardless of its success.