A key challenge laas providers face when building cloud infrastructure is managing physical and virtual resources, namely servers, storage, and networks, in a holistic fashion. The software toolkit responsible for managing resources is called a virtual infrastructure manager (VIM). VIM presents a set of basic and advanced features related to managing the machine's life cycle working group and cloud production. Answer the following questions: b) Describe the main features of the most popular Vi managers available. Only the most prominent and distinguished features of each tool are to be discussed. Present your answer in a comparison table by using below features: - License - Installation Client - Backend Hypervisor - Storage Virtualization Data Protection