In cloud environments, what feature allows for service use without human interaction?

The correct answer is on-demand self-service, which refers to the cloud service model that allows users to provision computing resources as needed without requiring human intervention from the service provider. This feature enables users to efficiently manage their resources and scale up or down according to their requirements, maximizing flexibility and efficiency. With on-demand self-service, users can access and utilize various cloud services directly through a web interface or API, streamlining the process and reducing response times associated with traditional service provisioning.

In the context of cloud computing, measured service relates to the capability of tracking resource usage, ensuring clients only pay for what they use. Resource pooling refers to the provider’s ability to serve multiple customers using shared resources, while rapid elasticity allows resources to be provisioned and released in a scalable manner. While these features enhance cloud services, they do not specifically ensure service use without human interaction, which is precisely what on-demand self-service provides.