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    PracticeAWS Solutions Architect Professional (SAP-C02)AWS Solutions Architect Professional SAP-C02 Practice Exam 4Question 58
    Medium1 markMultiple Choice
    Domain 3.4: Reliability ImprovementReliabilityChaos EngineeringFIS

    AWS SAP-C02 · Question 58 · Domain 3.4: Reliability Improvement

    A company wants to implement Chaos Engineering to test the resilience of their AWS infrastructure. They want to simulate an Availability Zone power outage to ensure their Auto Scaling groups and RDS Multi-AZ failovers work as expected. They must ensure that these experiments do not accidentally cause a complete system outage. Which combination of actions should they take? (Select TWO)

    Answer options:

    A.

    Write a custom script to terminate all EC2 instances in a specific subnet.

    B.

    Use AWS Fault Injection Simulator (FIS) to run the experiments.

    C.

    Define stop conditions in FIS using CloudWatch alarms.

    D.

    Use AWS Systems Manager to delete the RDS instance.

    E.

    Use AWS Config to monitor the experiment and restore resources.

    F.

    Disable Multi-AZ before running the experiment to see if the application survives.

    How to approach this question

    Identify the AWS service for Chaos Engineering (FIS) and its safety mechanism (Stop Conditions).

    Full Answer

    Use AWS Fault Injection Simulator (FIS) to run the experiments. Define stop conditions in FIS using CloudWatch alarms.
    AWS Fault Injection Simulator (FIS) is a managed service for Chaos Engineering. To prevent experiments from causing catastrophic outages, FIS uses 'stop conditions' backed by Amazon CloudWatch alarms to automatically halt the experiment if metrics exceed acceptable thresholds.

    Common mistakes

    Assuming custom scripts are the best way to perform chaos engineering.
    Question 57All questionsQuestion 59

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