Exam AWS Certified Cloud Practitioner CLF-C02 topic 1 question 363 discussion

Answer is D. AWS Auto Scaling

1. Improve fault tolerance through automatic detection and replacement of unhealthy instances. 2. Increase availability with predictive or dynamic scaling policies with the right amount of compute capacity. 3. Optimize workload performance and cost by combining purchase options and instance types. 4. Reduce the complexity of configuration changes and application deployments with instance refresh. https://aws.amazon.com/ec2/autoscaling/

https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/ec2-instance-recover.html#:~:text=If%20your%20instance%20is%20part%20of%20an%20Auto%20Scaling%20group%20with%20health%20checks%20enabled%2C%20then%20the%20instance%20is%20replaced%20when%20it%20becomes%20impaired.

https://docs.aws.amazon.com/autoscaling/ec2/userguide/ts-as-healthchecks.html If there are issues that cause Amazon EC2 to consider the instances in your Auto Scaling group impaired, Amazon EC2 Auto Scaling automatically replaces the impaired instances as part of its health check.

D. AWS Auto Scaling AWS Auto Scaling helps ensure the desired number of EC2 instances are available to handle the load for your application. It can automatically adjust the number of instances in the group, including replacing impaired instances, based on configured policies.

Answer : Auto Scaling

AWS Auto Scaling is the correct answer

AWS Auto Scaling helps you maintain application availability and allows you to automatically adjust capacity to meet varying demand. In this case, the solutions architect can configure Auto Scaling groups to replace impaired instances and maintain the desired fleet size.