Question: What happens to the subscriptions at the source Network Function (NF) during inter-NF mobility in a 5G system?
Option 1: They are deleted and need to be recreated at the target NF.
Option 2: They are transferred to the target NF as part of the context transfer, along with any associated access tokens.
Option 3: They are stored locally at the source NF and not shared with the target NF.
Option 4: They are automatically authorized at the target NF without requiring any additional validation.
Explanation: During inter-NF mobility in a 5G system, subscriptions at the source NF are transferred to the target NF as part of the context transfer. This allows for seamless continuity of service and enables the target NF to authorize the subscription based on its local policy, potentially using the received access token from the source NF.