Question: What is the primary purpose of the STATUS-MESSAGE-QUERY Request/Indication primitive sent by the Cell Broadcast Centre (CBC) to the Base Station Controller (BSC)/Radio Network Controller (RNC)?
Option 1: To retrieve the current status of a Cell Broadcast (CB) message for specified cells in the Cell-List parameter.
Option 2: To initiate the broadcast of a new CB message across all cells within a network.
Option 3: To update the software of Base Transceiver Stations (BTS) connected to the BSC/RNC.
Option 4: To request a list of all active mobile devices in the cells listed in the Cell-List parameter.
Explanation: The correct answer is Option 1 because, according to the specification, the STATUS-MESSAGE-QUERY Request/Indication primitive is specifically used by the CBC to query and obtain the current status of a CB-message for cells referenced in the Cell-List parameter. This highlights its role in monitoring and managing the delivery status of cell broadcast messages across targeted cells within a telecom network.