Which feature allows consumers to obtain, remove, manage, and report on resources without engaging with internal resources or the provider?

The feature that allows consumers to obtain, remove, manage, and report on resources without engaging internal resources or the provider is self-service and on-demand capacity. This capability is fundamental to cloud computing, enabling users to access and manipulate resources independently through a user-friendly interface or API.

Self-service empowers users to provision their own resources as needed, reducing dependency on IT personnel for routine tasks. This on-demand aspect means that resources are available as soon as they are needed, allowing for rapid deployment and scalability. This results in improved efficiency and agility, as consumers can adjust their resources in response to changing demands without delays caused by external approvals or resource allocation processes.

The other features mentioned, such as scale, high reliability and resilience, and converged network and IT capacity pool, are important aspects of cloud services but do not specifically provide the autonomy and immediacy that characterize self-service. Scale pertains to the ability to handle increased loads, reliability and resilience refer to the system's ability to continue functioning in adverse conditions, and converged capacity involves the integration of networking and IT resources, all of which may enhance the overall experience but do not allow for direct, independent management by consumers.