DVA-C02 Domain 4: Troubleshooting and Optimization

A company needs to profile Lambda duration and memory usage. Which option meets the requirement with the LEAST implementation effort? profile Lambda duration and memory usage.

Multiple choice — select one answer

Answer choices

  1. a. Lambda Power Tuning or CloudWatch metrics
  2. b. API Gateway stage caching
  3. c. CloudWatch Logs Insights
  4. d. Better partition key design

Architectural breakdown & explanation

Right-sizing memory affects CPU and cost.

Correct answer(s): a. Lambda Power Tuning or CloudWatch metrics

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

Official documentation & study links

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