Question: What is the purpose of including the N3IWF identifier in the NAS protocol?
Option 1: To enable UE authentication over 3GPP access networks.
Option 2: To facilitate slice-based routing decisions within the 5GS core network.
Option 3: To support handover procedures between different non-3GPP access networks.
Option 4: To allow the UE to select a specific N3IWF based on supported slices over non-3GPP access networks.
Explanation: The inclusion of the N3IWF identifier in the NAS protocol is intended to enable slice-based N3IWF selection, allowing the UE to choose an appropriate N3IWF that supports its required network slices when accessing the 5GS over non-3GPP access networks.