DVA-C02 Domain 4: Troubleshooting and Optimization

A hybrid environment must support a goal to trace requests across distributed services without changing application code. What should you implement? trace requests across distributed services.

Multiple choice — select one answer

Answer choices

  1. a. AWS X-Ray
  2. b. CloudWatch alarms on Lambda metrics
  3. c. API Gateway stage caching
  4. d. Better partition key design

Architectural breakdown & explanation

X-Ray maps latency across service graph.

Correct answer(s): a. AWS X-Ray

Exam domain: Domain 4: Troubleshooting and Optimization (18% weight on the official guide).

Official documentation & study links

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