What function allows an orchestration tool to start up an additional production app container?

The correct answer is related to the ability of an orchestration tool to manage the number of application containers running in a production environment. In the context of orchestration tools such as Kubernetes, the function that specifically addresses the starting up of additional application containers in response to load or demand is known as scaling.

Scaling refers to the process of adjusting the number of running instances of an application to meet the current demand. When there is a need for more resources, the orchestration tool can increase the number of application containers (scale up), and when the demand decreases, it can reduce the number of containers (scale down). This dynamic adjustment is essential in maintaining performance and optimizing resource usage within a cloud or containerized environment.

Deployment generally refers to the process of distributing and configuring the application within containers, but it does not specifically handle the runtime scaling of these containers. Build automation involves automating the creation of application builds, while configuration addresses the management of application settings and environments. Scaling is distinct from these functions as it focuses directly on managing the number of active application instances based on real-time needs.