In the shared responsibility model for an Azure deployment, what is Microsoft solely responsible for...

In Microsoft’s shared responsibility model for Azure, responsibilities are divided between Microsoft and the customer. Microsoft Learn explains that Microsoft is responsible for security of the cloud, while customers are responsible for security in the cloud. The platform owner’s scope includes the underlying facilities and infrastructure. As the documentation states: “Microsoft is responsible for the security OF the cloud, which includes protecting the infrastructure that runs all of the services offered in Microsoft Azure,” and this encompasses “physical datacenters, physical hosts, and the physical network.” The customer, by contrast, is responsible for items within their tenant and workloads, including “data, endpoints, accounts, and access management,” as well as configuration of services, identities, and devices.

Applied to the options given: managing mobile devices (A), setting permissions for user data (B), and creating/managing user accounts (C) fall under the customer’s responsibility because they relate to identity, access, data, and endpoint management within the tenant. The one item that Microsoft solely manages is the physical layer—the “physical hardware and facilities” that host Azure services. Therefore, the correct answer is D. the management of the physical hardware.