問題文
Developers want to push application code and have it run without building or maintaining servers, but they still need to choose their own framework and libraries. Which service model fits, and what does the provider manage?
選択肢
- Infrastructure as a service, since choosing libraries requires a virtual machine that the customer administers, leaving the developers patching guest operating systems nobody asked them to run.
- Infrastructure as a service; the provider manages the servers and their operating systems on the customer's behalf, so the developers only ever deal with the code, and any library the application needs is installed and kept up to date by the provider as part of the service.
- Platform as a service; the provider manages the operating system, the runtime and the scaling of the platform, while the developers supply and manage the application code.
- Software as a service; the provider supplies a finished application.