Question: What is the basis for the N19 interface in terms of user plane connectivity for a 5G Virtual Network (VN) group?
Option 1: Dedicated User Plane tunnels between each pair of PSA UPFs.
Option 2: A shared User Plane tunnel connecting two PSA UPFs of a single 5G VN group.
Option 3: Multiple N19 interfaces, one for each PDU session within the VN group.
Option 4: No user plane connectivity is required over the N19 interface.
Explanation: The correct answer is based on the understanding that the N19 interface utilizes a shared User Plane tunnel to connect two PSA UPFs within the same 5G Virtual Network (VN) group, facilitating efficient data forwarding and management. This approach simplifies network architecture and reduces overhead compared to dedicated tunnels or multiple interfaces per PDU session.