Instance Failure Timeout

Answer - B.

The AWS Documentation mentions.

Every instance has an AWS OpsWorks Stacks agent that communicates regularly with the service.

AWS OpsWorks Stacks uses that communication to monitor instance health.

If an agent does not communicate with the service for more than approximately five minutes, AWS OpsWorks Stacks considers the instance to have failed.

For more information on the Auto healing feature , please visit the below URL:

OpsWorks Stacks is a configuration management service provided by AWS, which allows users to automate the deployment, configuration, and management of applications across instances.

In OpsWorks Stacks, instances that are part of a layer are continually checked for their health status. If an instance is not responding or not functioning correctly, OpsWorks Stacks can replace the instance automatically with a new instance, provided that the Auto Healing feature is enabled for the layer.

The amount of time that OpsWorks Stacks waits for a response from an underlying instance before deeming it as a failed instance is configurable. The default value for this parameter is 5 minutes, which means that if an instance does not respond to the health check requests within 5 minutes, it is marked as failed.

However, users can change this value as per their requirements. The minimum value that can be set is 1 minute, and the maximum value is 60 minutes.

So, the answer to the question is B. 5 minutes is the default amount of time that OpsWorks Stacks waits for a response from an underlying instance before deeming it as a failed instance.