AWS DevOps Engineer Professional Practice Test

The management of application versions in Elastic Beanstalk can significantly influence operational costs, particularly when dealing with multiple versions of applications that may not be actively used. Configuring an Application Version Lifecycle policy provides a mechanism to automatically delete or retain specific versions of your application based on your requirements, such as the number of versions or the age of the versions. By setting clear lifecycle policies, you ensure that only the necessary versions are kept in storage, which directly impacts your AWS costs since older, unused application versions consume storage resources. This preventive measure helps in maintaining a lean environment and can lead to substantial savings over time. While other options involve important configurations within AWS, they do not specifically address the management of application versions in a cost-effective manner. For example, configuring database migration policies relates more to database management rather than application version control, while auto-scaling policies deal with resource allocation based on traffic demands, and load balancer strategies are focused on distributing incoming application traffic efficiently. Thus, focusing on the lifecycle of application versions with a dedicated policy is the most direct approach to managing costs effectively.