Which view tracks how many active data quality warnings are present over time?

The chosen answer, which refers to Data Quality Warning History, is correct because it specifically records and displays the count of active data quality warnings over a period of time. This view allows users to monitor and understand trends in data quality issues, enabling them to take appropriate actions to address any underlying problems. By examining this history, users can correlate the frequency of warnings with changes in data sources or other system modifications, making it easier to manage data integrity.

The other options do not focus on tracking data quality warnings over time. For instance, monitoring actions by specific users is more about user behavior and interactions with the data rather than the quality of the data itself. Performance of Views emphasizes how well the dashboards and views are functioning, such as load times and responsiveness, rather than the integrity of the data they display. Lastly, tracking traffic to data sources involves analyzing user access patterns and data usage but does not provide insights into the quality of the data, which is the central element being assessed in the context of this question.