Question: In the context of Service Enabler Architecture Layer for Verticals (SEAL), what is a possible scenario for using the procedure to modify unicast resources by sending a resource modification request from the NRM server to adjust parameters for a User Equipment (UE)?
Option 1: To initially establish unicast resources for a new UE connection
Option 2: To release and resume resources when a UE switches to receiving VAL service communications over multicast transmission
Option 3: To upgrade the entire network infrastructure from 4G to 5G capabilities
Option 4: To add a new Vertical Application Layer (VAL) service without affecting existing UEs
Explanation: This option is correct because one of the specified scenarios for modifying unicast resources involves releasing and resuming these resources when a UE is capable of receiving VAL service communications via multicast transmission, thereby potentially optimizing resource utilization. This directly aligns with efficient network management practices in telecom networks, especially in contexts where adaptive transmission methods (unicast vs. multicast) are employed based on UE capabilities and service requirements.