Question 16
Domain 1: Cloud Architecture, Governance, and Risk ManagementA company wants to migrate its existing on-premises ERP system to the cloud with minimal customization required. The IT team wants the vendor to handle all maintenance, patching, and infrastructure management. Which cloud service model is MOST appropriate?
Correct answer: C
Explanation
Software as a Service (SaaS) fits because the vendor provides the application and manages "all maintenance, patching, and infrastructure management." This model is used when a company wants to move to the cloud with minimal customization and let the provider handle the underlying system.
Why each option is right or wrong
A. Infrastructure as a Service (IaaS)
B. Platform as a Service (PaaS)
C. Software as a Service (SaaS)
Under the standard cloud service model definitions, SaaS places the application, runtime, operating system, middleware, and infrastructure under the provider’s control, leaving the customer only to use the software and configure limited settings. That matches the facts here: an ERP application is being moved with minimal customization, and the vendor is expected to perform all maintenance, patching, and infrastructure management, which are not customer responsibilities in SaaS.
D. Container as a Service (CaaS)