For real-time data updates, Power BI consultants use technologies like Power BI's DirectQuery and streaming datasets. DirectQuery connects Power BI directly to the data source, querying it live whenever users interact with a report. Power BI consultant also use Azure Stream Analytics or Power BI’s REST API for real-time data streaming, allowing dashboards to update automatically as new data flows in. These technologies ensure that clients always have access to the latest information without needing manual refreshes.