CompTIA Security+ Question I-94

An IT director is looking to reduce the footprint of their company’s server environment. They have decided to move several internally developed software applications to an alternate environment, supported by an external company. Which of the following BEST describes this arrangement?

A. Infrastructure as a Service
B. Storage as a Service
C. Platform as a Service
D. Software as a Service

Answer: A

Cloud users install operating-system images and their application software on the cloud infrastructure to deploy their applications. In this model, the cloud user patches and maintains the operating systems and the application software.