Which of the following metrics does NOT consume DDUs?

The reason Cloud Foundry metrics do not consume Digital Delivery Units (DDUs) is that they are considered part of the integrated monitoring capabilities of Dynatrace, which provide essential insights into cloud-based applications without additional charges in terms of DDUs. This makes them a cost-effective choice for users monitoring applications running on Cloud Foundry, as they facilitate seamless integration and monitoring without incurring extra metrics costs.

The other options listed typically generate charges against DDUs, as they involve additional processing and data handling that Dynatrace uses to assess performance and provide insights. Built-in extensions, calculated log metrics, and JMX metrics each involve additional layers of data collection, processing, or manipulation that are essential for in-depth analysis but also contribute to the consumption of DDUs. This distinction highlights the strategic value of understanding what metrics incur costs in your monitoring strategy.