Question: What is the purpose of the Visited Country FQDN for N3IWF in a roaming scenario?
Option 1: To uniquely identify the MCC of the visited country and determine if the country mandates the selection of an N3IWF.
Option 2: To provide the UE with information about available network services in the visited country.
Option 3: To authenticate the UE's identity in the visited country.
Option 4: To prioritize emergency communications in the visited country.
Explanation: The Visited Country FQDN for N3IWF is used by a roaming UE to determine whether the visited country mandates the selection of an N3IWF. It contains a MCC that uniquely identifies the country, allowing the UE to make informed decisions about network selection.