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AWS Certified CloudOps Engineer Associate SOA-C03 Practice Question

A company runs a production Amazon RDS for PostgreSQL db.r5.large instance with 2 vCPUs. After enabling Performance Insights, the operations team notices that query latency rises when the database load exceeds the number of vCPUs. They need an automated Systems Manager runbook to execute whenever this situation persists for 5 minutes, while keeping operational overhead low. Which solution meets the requirement?

  • Create a CloudWatch alarm in the AWS/RDS namespace for the DBLoad metric (statistic: Average, period: 60 seconds, evaluation periods = 5, threshold = 2) and set the alarm action to run the Systems Manager Automation document.

  • Create an RDS event subscription for source type 'db-instance' and event category 'failure'; subscribe an SNS topic that triggers the Systems Manager runbook.

  • Configure a CloudWatch alarm on the instance's CPUUtilization metric with an 80% threshold for 5 minutes and target the Systems Manager runbook.

  • Enable Enhanced Monitoring at 1-second granularity and deploy a Lambda function that polls CPU metrics every minute; if CPUUtilization > 80% for 5 checks, invoke the runbook.

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