What type of properties are applied to entities via rules in Dynatrace?

In Dynatrace, rules can be used to apply tags to entities. Tags serve as key-value pairs that allow users to categorize and organize monitored entities, enabling improved filtering and reporting. For instance, a tag might indicate the environment (such as production or staging) or designate a specific application feature.

Using tags helps in pinpointing performance issues, analyzing data, and visualizing impacts based on specific categorizations. Tags can also be used in the context of anomaly detection, alerting, and more, making them essential for managing the data collected by Dynatrace effectively.

Other options like endpoints typically refer to specific locations for data retrieval, indicators relate to specific criteria that assess performance, and metrics are quantitative measures related to entity performance. While these elements are important to Dynatrace's functionality, they do not pertain directly to the application of properties via rules. Thus, tags are the correct option for applying properties to entities through the use of rules in Dynatrace.