Question: In a UE-initiated NBIFOM mode, what action does the PCRF take if the default NBIFOM access provided by the UE complies with the subscription?
Option 1: The PCRF rejects the addition of the access and sends a CCA command with a result code set to DIAMETER_ERROR_NBIFOM_NOT_AUTHORIZED (5149).
Option 2: The PCRF indicates the default NBIFOM access to the PCEF by including the type of default access within the Default-Access AVP.
Option 3: The PCRF modifies existing PCC rules without verifying the default access compliance.
Option 4: The PCRF notifies the UE to select an alternative default NBIFOM access.
Explanation: In UE-initiated NBIFOM mode, after verifying that the default NBIFOM access provided by the UE complies with the subscription, the PCRF affirmatively responds by specifying the accepted default access. This is done to ensure alignment between the UE's selection and the network's policy, thus the PCRF indicates the default NBIFOM access to the PCEF using the Default-Access AVP.