Question: What is the purpose of the Namf_EventExposure_UnSubscribe service operation in the 5G System?
Option 1: To subscribe for a specific event for one UE, group of UE(s), or any UE.
Option 2: To unsubscribe for a specific event for one UE, group of UE(s), or any UE.
Option 3: To update the subscription correlation ID for an existing event subscription.
Option 4: To retrieve the operation execution result indication for an event subscription.
Explanation: The Namf_EventExposure_UnSubscribe service operation is used by the NF consumer to unsubscribe from a specific event for one UE, group of UE(s), or any UE. This is done by invoking the Namf_EventExposure_Unsubscribe (Subscription Correlation ID) to the AMF, which removes the event notification subscription.