Crucial Exams

AWS Certified Solutions Architect Associate SAA-C03 Practice Question

A web application runs on a single Amazon EC2 instance that is not part of an Auto Scaling group. The operations team must ensure that if the instance fails a system status check because of an underlying hardware issue, the instance is automatically brought back online with the same instance ID and Elastic IP address. Which solution meets this requirement with the LEAST operational overhead?

  • Create an Amazon CloudWatch alarm on the instance's StatusCheckFailed_System metric and configure the alarm action to Recover this instance.

  • Place the instance in an Auto Scaling group with desired capacity set to 1, so the group automatically replaces the instance if it becomes unhealthy.

  • Schedule daily backups of the instance by using AWS Backup and restore the latest backup if the instance becomes unhealthy.

  • Configure Amazon Route 53 health checks and a failover routing policy to redirect traffic to a standby instance in another Availability Zone.

AWS Certified Solutions Architect Associate SAA-C03
Design Resilient Architectures
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