Question: What is the primary goal of the MSGin5G Service in terms of messaging service performance for massive IoT communication?
Option 1: To provide high-speed data transfer for large files.
Option 2: To ensure low end-to-end latency and high reliability of message delivery in a resource-efficient manner.
Option 3: To support only person-to-person communication with advanced security features.
Option 4: To enable voice over IP (VoIP) services for IoT devices.
Explanation: The MSGin5G Service aims to provide efficient messaging services, especially for massive IoT communication, by ensuring low end-to-end latency and high reliability of message delivery while optimizing resource usage in both the control plane and user plane of the network.