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Question

Difficulty: EasyShared Responsibility Model

A company is migrating its customer relationship management system from a custom-built solution hosted on Azure App Service (PaaS) to Microsoft Dynamics 365 (SaaS). Which responsibility shifts from the customer to Microsoft because of this migration?

  1. Managing and updating the application codeAnswer
  2. B
    Patching the underlying operating system
  3. C
    Configuring user identity accounts and access permissions
  4. D
    Securing the physical datacenters and virtualization hosts

Answer

Managing and updating the application code
The correct answer is the option stating that managing and updating the application code shifts to Microsoft. Under a PaaS model, the customer must manage and maintain their own application code. When transitioning to a SaaS model, Microsoft manages the application entirely, freeing the customer from this administrative task.

Step-by-Step Solution

1
Identify the service models in the scenario
The company is transitioning from Azure App Service, which is Platform as a Service (PaaS), to Microsoft Dynamics 365, which is Software as a Service (SaaS).
Understanding the starting and target service models is necessary to determine how responsibilities shift.
2
Compare customer responsibilities between PaaS and SaaS
In PaaS, the customer is responsible for the application and database configurations. In SaaS, the cloud provider manages the entire application, leaving the customer responsible only for their data, devices, and user accounts.
By finding the difference in customer responsibility between the two models, we can identify which responsibility shifts to Microsoft.

Key Concept

Shared Responsibility Model transitions between PaaS and SaaS
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Topics

Shared Responsibility Model

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