Answer:
Iaas means Infrastructure as a service.
IaaS is one of the three categories of cloud computing services.
Others are software as a service (SaaS) and platform as a service (PaaS). Iaas is faster and easier to operate. It is also more cost-efficient
IaaS provides virtualized computing resources over a wide area network (WAN) such as the internet.
Examples of independent IaaS providers are Amazon Web Services (AWS) and Google Cloud Platform (GCP). These Iaas providers are organizations that sell IaaS.