Final answer:
Infrastructure as a Service (IaaS) is the cloud computing service model that provides a virtual machine (VM) with customizable hardware performance, full operating system control, and customized development tools.
Step-by-step explanation:
Infrastructure as a Service (IaaS) is the cloud computing service model that provides a virtual machine (VM) where the customer can specify the amount of hardware performance/capacity for the VM, has full control over the operating system, and includes customized development tools.
IaaS allows customers to have complete control over their virtual environment, including the choice of operating system, software, and configurations. They can also scale the infrastructure up or down based on their needs.
PaaS, DBaaS, and SaaS are different service models that do not offer the same level of customization and control as IaaS.
Infrastructure as a Service (IaaS) is the correct option. In IaaS, customers are provided with virtualized computing resources over the internet. This includes virtual machines (VMs) where customers have control over the operating system, can specify the amount of hardware performance and capacity for the VM, and even install and configure custom development tools. IaaS offers a high level of flexibility and control, allowing users to manage their infrastructure without worrying about the physical hardware. This service model is suitable for organizations that require a scalable and customizable computing environment without the burden of managing the underlying hardware infrastructure.