Which statement best summarises how Prometheus metrics should be brought into Instana?
Select an answer to reveal the explanation.
Short Explanation
You bring Prometheus into Instana when the existing pipeline is worth keeping, choose labels deliberately to control cardinality, and leave tracing alone for request-level analysis.
Full Explanation
The statement recommending integration when an existing Prometheus pipeline is worth preserving, deliberate label planning for cardinality, and keeping tracing for request-level analysis is correct. The integration is justified by an existing pipeline, its cost is governed by label cardinality, and its scope stops at metrics; tracing continues to provide what metrics structurally cannot. Importing every exposed metric with all labels is incorrect because it creates cardinality problems that are considerably harder to unwind than to avoid. Treating Prometheus as the trace source is incorrect because Prometheus does not produce traces. Replacing trace context propagation with Prometheus labels is incorrect because trace context and metric labels solve different problems and substituting one for the other breaks distributed tracing. For the exam, be able to give both the reason to integrate and the constraint that governs it.