Question: What type of packet does the 5G network need to efficiently route for private communication between UEs within a 5G LAN-type service?
Option 1: IP packet
Option 2: MPLS packet
Option 3: Non-IP packet (e.g. Ethernet frame)
Option 4: ICMP packet
Explanation: The correct answer is non-IP packet, as the 5G network needs to support the routing of non-IP packets efficiently for private communication between UEs within a 5G LAN-type service. This is specified in the requirement that the 5G network shall support the routing of non-IP packet (e.g. Ethernet frame) efficiently for this type of communication.