For adopting cloud computing solutions, modern enterprises have been using IaaS. Infrastructure as a service or IaaS has been in use for outsourcing resources. The internet service provider Bangladesh Online or BOL by Beximco has said that when this service has to be invested in, understanding how it works is advised. IaaS is a form of infrastructure but virtual. It mainly needs a cloud provider for its functioning. Through the service, the provider and its customers/modern enterprises can be connected. As the service begins to work, both flexibility and scalability can be achieved on the part of modern enterprises. Understanding How IaaS Came in Demand IaaS or the cloud-computing solution has become more prevalent since the use of resources relating to the infrastructure as well as the tools for management. Some years ago, SaaS or software as a service was in demand. With its use, a need was formed for a greater number of hardware resources. Further, the requirement for more to