In the infrastructure as a service (IaaS) model, which two components are the responsibility of the cloud service provider? Each correct answer is a complete solution. NOTE: Each correct selection is worth one point.

In the IaaS model, the cloud provider is responsible for the underlying infrastructure. This includes maintaining the hardware, such as servers, networking equipment, and storage devices, and ensuring their operational integrity. They are also responsible for the physical security of the datacenter infrastructure, protecting it from unauthorized access and environmental threats. Conversely, the customer is responsible for elements layered on top of this infrastructure. This includes the installation and configuration of the operating system, the configuration and maintenance of storage (within the provided infrastructure), and the network configuration within their virtualized environment. These are all aspects that the customer manages to build and run their applications.