No matter what form they come in, "services" are obtained or purchased by a cloud customer from a cloud service provider. Services can come in many forms--virtual machines, network configurations, hosting setups, and software access, just to name a few. Hosting and servers--or, with a cloud, more appropriately virtual machines--are just two examples of "services" that a customer would purchase from a cloud provider. "Customers" would never be a service that's purchased.

Explanation
DLP can be combined with DRM to protect intellectual property; both are designed to deal with data that falls into special categories. SIEMs are used for monitoring event logs, not live data movement. Kerberos is an authentication mechanism. Hypervisors are used for virtualization.

Docker is a technology that packages applications into containers (lightweight virtual environments). It's not a full VM manager, nor is it serverless or orchestration by itself (though Docker Swarm/Kubernetes orchestrate containers).

EAR is a Commerce Department program. Evaluation assurance levels are part of the Common Criteria standard from ISO. Digital rights management tools are used for protecting electronic processing of intellectual property.