Q52 — AWS DVA-C02 Ch.3

Question 52 of 100 | ← Chapter 3

A company has an application running across multiple AWS Regions. The application experiences sporadic latency issues at irregular intervals. Developers must implement distributed tracing for the application using AWS X-Ray to identify the root cause of latency issues. What should developers do to meet this requirement?

• A. Use the X-Ray console to add annotations for AWS services and user-defined services.
• B. Use X-Ray’s automatic region annotations for AWS services. Add region annotations for user-defined services. ✓
• C. Use the X-Ray daemon to add annotations for AWS services and user-defined services.
• D. Use X-Ray’s automatic region annotations for user-defined services. Configure X-Ray to add region annotations for AWS services.

Correct Answer: B. Use X-Ray’s automatic region annotations for AWS services. Add region annotations for user-defined services.

Explanation

Option B is correct. AWS X-Ray automatically adds region annotations for AWS services. Therefore, developers only need to manually add region annotations for user-defined services. This enables accurate identification of cross-Region service calls and root-cause analysis of performance issues in X-Ray traces.