Deploying an Azure Environment for PaaS Migration

C

Azure App Service and Azure SQL databases are examples of Azure PaaS solutions. Therefore, this solution does meet the goal.

The correct answer is C. an Azure App Service and Azure SQL databases.

In the given scenario, the company's migration plan specifies that only Platform as a Service (PaaS) solutions should be used in Azure. PaaS solutions provide a fully managed platform for developing, deploying, and scaling applications without the need to manage the underlying infrastructure.

Let's analyze each answer option to understand why option C is the correct choice:

A. Azure virtual machines, Azure SQL databases, and Azure Storage accounts: This option includes Infrastructure as a Service (IaaS) components such as Azure virtual machines and Azure Storage accounts, along with Azure SQL databases. While virtual machines provide flexibility and control over the underlying infrastructure, they also require managing and maintaining the operating system, patching, and scaling. This option does not align with the company's migration plan of using only PaaS solutions.

B. An Azure App Service and Azure virtual machines that have Microsoft SQL Server installed: This option includes an Azure App Service, which is a PaaS offering, but it also includes Azure virtual machines with Microsoft SQL Server installed. This combination of PaaS and IaaS does not adhere to the company's migration plan of using only PaaS solutions.

C. An Azure App Service and Azure SQL databases: This option includes an Azure App Service, which is a fully managed PaaS offering for hosting web applications and services. It provides a platform to deploy and scale applications without managing the underlying infrastructure. Azure SQL databases, also a PaaS offering, provide fully managed and scalable database services. This combination aligns with the company's migration plan of using only PaaS solutions, making it the correct choice.

D. Azure storage accounts and web server in Azure virtual machines: This option includes Azure storage accounts, which are used for storing data in the cloud. However, it also includes a web server in Azure virtual machines, which falls under the IaaS category. This option does not comply with the company's migration plan of using only PaaS solutions.

In summary, option C (an Azure App Service and Azure SQL databases) is the correct choice as it aligns with the company's migration plan of using only PaaS solutions in Azure.

The correct answer is C. an Azure App Service and Azure SQL databases.

Explanation:

Platform as a Service (PaaS) is a cloud computing model that provides a complete platform of resources for building, deploying, and managing applications without the complexity of infrastructure management. Azure App Service is a PaaS offering that enables you to quickly build, deploy, and scale web apps and APIs.

Azure SQL Database is a fully managed relational database service that enables you to run your database in the cloud without the need to manage any infrastructure. It is a PaaS offering that provides high availability, security, and scalability for your database applications.

Azure Storage accounts are not considered PaaS solutions because they are more of an infrastructure service that provides storage for blobs, files, queues, tables, and disks.

Azure virtual machines are also not considered PaaS solutions because they provide you with infrastructure-level control and management, which means that you need to manage the operating system, patches, updates, and security on the virtual machines.

Therefore, the correct answer is C. an Azure App Service and Azure SQL databases, as they are both PaaS offerings that enable you to build and manage your applications without worrying about the underlying infrastructure.