Which cloud service model provides the most control over the underlying infrastructure?

  1. Software as a Service (SaaS)
  2. Function as a Service (FaaS)
  3. Platform as a Service (PaaS)
  4. Infrastructure as a Service (IaaS)

Explanation

Infrastructure as a Service (IaaS) provides the most control over the underlying infrastructure, allowing users to manage operating systems, middleware, and applications while the cloud provider manages the physical hardware.