Microsoft Azure Fundamentals AZ-900 Practice Question
An organization is migrating a legacy enterprise resource-planning (ERP) system to Azure. The workload requires custom operating-system patches, specialized middleware, and fine-grained control over virtual network routing. Which Azure cloud service type best meets these requirements?
Infrastructure as a Service (IaaS) is the correct choice because it gives the customer control over the operating system, middleware, and virtual networking while Microsoft maintains only the underlying physical infrastructure. Platform as a Service (PaaS) and Software as a Service (SaaS) shift management of the OS, middleware, and often network configuration to the provider, so they would not satisfy the requirement for full control .
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Microsoft Azure Fundamentals AZ-900
Cloud Concepts
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