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DOP-C02 Domain 3: Resilient Cloud Solutions

A hybrid environment must support a goal to run chaos experiments safely without changing application code. What should you implement?

Multiple choice — select one answer

Answer choices

  1. a. Chaos in prod without guardrails
  2. b. Publish a custom Amazon CloudWatch metric: visible SQS messages divided by in-service instances. Scale the Auto Scaling group on that metric against an acceptable target.
  3. c. Add a lifecycle hook to put new instances in Pending:Wait; run a registration script; complete the lifecycle action with CONTINUE or ABANDON.
  4. d. AWS Fault Injection Simulator

Architectural breakdown & explanation

FIS injects controlled failures.

Correct answer(s): d. AWS Fault Injection Simulator

Exam domain: Domain 3: Resilient Cloud Solutions (15% weight on the official guide).

Official documentation & study links

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