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When you are implementing a Software as a Service (SaaS) solution, you are responsible for configuring the SaaS solution.  Everything else is managed by the cloud provider. SaaS requires the least amount of management. The cloud provider is responsible for managing everything, and the end user just uses the software. Software as a service (SaaS) allows users to connect to and use cloud-based apps over the Internet. Common examples are email, calendaring and office tools (such as Microsoft Office 365). SaaS provides a complete software solution which you purchase on a pay-as-you-go basis from a cloud service provider. You rent the use of an app for your organization and your users connect to it over the Internet, usually with a web browser. All of the underlying infrastructure, middleware, app software and app data are located in the service provider’s data center. The service provider manages the hardware and software and with the appropriate service agreement, will ensure the availability and the security of the app and your data as well. References:https://azure.microsoft.com/en-in/overview/what-is-saas/https://docs.microsoft.com/en-gb/learn/modules/principles-cloud-computing/5-types-of-cloud-services

A private cloud is hosted in your datacenter.  Therefore, you cannot close your datacenter if you are using a private cloud. A public cloud is hosted externally, for example, in Microsoft Azure.  An organization that hosts its infrastructure in a public cloud can close its data center. Public cloud is the most common deployment model. In this case, you have no local hardware to manage or keep up-to-date – everything runs on your cloud provider's hardware.  Microsoft Azure is an example of a public cloud provider. In a private cloud, you create a cloud environment in your own datacenter and provide self-service access to compute resources to users in your organization. This offers a simulation of a public cloud to your users, but you remain completely responsible for the purchase and maintenance of the hardware and software services you provide. References:https://docs.microsoft.com/en-gb/learn/modules/principles-cloud-computing/4-cloud-deployment-models

With the public cloud, you get pay-as-you-go pricing – you pay only for what you use, no CapEx costs. With the public cloud, you have self-service management.  You are responsible for the deployment and configuration of the cloud resources such as virtual machines or web sites.  The underlying hardware that hosts the cloud resources is managed by the cloud provider. Incorrect Answers:A: You don’t have dedicated hardware.  The underlying hardware is shared so you could have multiple customers using cloud resources hosted on the same physical hardware.B: Connections to the public cloud are secure.C: Storage is not limited.  You can have as much storage as you like.References:https://docs.microsoft.com/en-gb/learn/modules/principles-cloud-computing/4-cloud-deployment-models