Crucial Exams

AWS Certified CloudOps Engineer Associate SOA-C03 Practice Question

A company runs a single Amazon EC2 instance that periodically spikes to 90% CPUUtilization for more than 5 minutes, causing slow response times. The operations team wants an automated, auditable remediation that upgrades the instance to the next larger size whenever this threshold is reached, without writing or maintaining custom code. Which solution will meet these requirements?

  • Subscribe the CloudWatch alarm to an SNS topic that triggers a Lambda function. Have the function call the ModifyInstanceAttribute API to change the instance type.

  • Enable EC2 Auto Recovery on the instance so that hardware replacement automatically launches a larger instance when CPU thresholds are exceeded.

  • Define an Auto Scaling scheduled action that replaces the instance with a larger type during the expected peak periods.

  • Create a CloudWatch alarm for CPUUtilization > 85% for 5 minutes. Add an EventBridge rule for the alarm's ALARM state that invokes a Systems Manager Automation runbook which stops the instance, changes it to the next larger type, and starts it.

AWS Certified CloudOps Engineer Associate SOA-C03
Monitoring, Logging, Analysis, Remediation, and Performance Optimization
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