DVA-C02 Domain 4: Troubleshooting and Optimization

Which service should you use to search application logs with Insights queries?

Multiple choice — select one answer

Answer choices

  1. a. CloudWatch alarms on Lambda metrics
  2. b. CloudWatch Logs Insights
  3. c. SQS dead-letter queues
  4. d. AWS X-Ray

Architectural breakdown & explanation

Logs Insights queries log groups at scale.

Correct answer(s): b. CloudWatch Logs Insights

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

Official documentation & study links

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