Explanation
The question is describing the Infrastructure as a Service (IaaS) cloud offering, and as such, the volume and object storage types will be available to the customer. Structured and unstructured are storage types associated with PaaS, and although the other answers present similar-sounding storage types, they are a mix of real and fake names.

The cloud service integrator is the official role that involves connecting and integrating existing systems and services with a cloud environment. This may involve moving services into a cloud environment, or connecting to external cloud services and capabilities from traditional data center-hosted services.

Explanation
A virtual machine is ultimately an image file residing a file system. Because of this, even when a virtual machine is "powered off," it is still susceptible to attacks and modification. A physical server that is powered off would not be susceptible to attacks.

Problem management is focused on identifying and mitigating known problems and deficiencies before they are able to occur, as well as on minimizing the impact of incidents that cannot be prevented.
Continuity management (or business continuity management) is focused on planning for the successful restoration of systems or services after an unexpected outage, incident, or disaster.
Availability management is focused on making sure system resources, processes, personnel, and toolsets are properly allocated and secured to meet SLA requirements. Configuration management tracks and maintains detailed information about all IT components within an organization.