What is Cloud Computing? Cloud computing is a way of delivering services over network. It is a ubiquitous IT services over the network. What are Cloud Services Characteristics? On Demand Self Service Provisioning Broad Network Access Resource Pooling Measured & Metered Service Rapid Elasticity These IT Services when delivered over the network is called cloud services with little or no service provider interaction. What are the types of Service model available in Cloud? Saas (Software as a Service) Paas (Platform as a Service) Iaas (Infrastructure as a Service)