Question: What happens to subscriptions for Nudm_UECM_DeregistrationNotification when the consumer of the Nudm_UECM_Deregistration service operation is AMF?
Option 1: They are updated with new information.
Option 2: They remain unchanged.
Option 3: They are temporarily suspended.
Option 4: They are removed.
Explanation: When the consumer of the Nudm_UECM_Deregistration service operation is AMF, it implies that the subscriptions to be notified when the NF is deregistered in UDM (i.e. Nudm_UECM_DeregistrationNotification) are also removed. This ensures that notifications are stopped for the deregistered NF, maintaining data consistency and preventing unnecessary notifications.