Question: What triggers the need for MBMS (Multimedia Broadcast Multicast Service) bearer event notifications to be sent from the network to the NRM (Network Resource Management) server, an instantiation of a GCS AS (Generic Configuration Server Application Server)?
Option 1: Changes in User Equipment (UE) location within the network.
Option 2: The NRM server's periodic synchronization with network resources.
Option 3: The network's allocation or deallocation of MBMS resources affecting service delivery for Verticals (VAL services).
Option 4: Updates to the NRM server's software requiring a refresh of its network view.
Explanation: The correct answer, Option 3, highlights that the primary reason for sending MBMS bearer event notifications is to inform the NRM server about changes in the network's ability to deliver VAL services due to the allocation or deallocation of MBMS resources. This ensures the NRM server has an up-to-date understanding of the network's capacity to support these services, reflecting the paragraph's emphasis on the network's 'ability to deliver the VAL service' tied to MBMS resource allocation events.