問題文
How does the customer's share of responsibility change as an organization moves from infrastructure services to platform services and then to software services?
選択肢
- The customer's share widens, because higher-level services expose more of the operating system to the customer and leave the patching of that system to whoever subscribed.
- The customer's share narrows toward the data, the identities, and the configuration of the service, while more of the underlying layers are operated by the provider.
- The customer becomes responsible for the physical facility, because a service that hides the operating system moves the remaining duties down to the building and the hardware.
- The customer's share stays exactly the same at every level, because the responsibility model is defined by the contract rather than by the service model, and the contract does not distinguish between the ways in which the service happens to be delivered.