Examkin

Question

Difficulty: EasyShared Responsibility Model

A company currently hosts its document storage server on an Azure virtual machine (IaaS) where they manage the operating system and software updates. They plan to migrate this service to Microsoft SharePoint Online (SaaS). Which responsibility shifts from the customer to Microsoft after this migration?

  1. A
    Physical security of the hardware inside the datacenter
  2. B
    Classification and protection of corporate data
  3. Operating system patching and maintenanceAnswer
  4. D
    Management of user accounts and directory access

Answer

Operating system patching and maintenance
In Infrastructure as a Service (IaaS), the customer is responsible for maintaining and patching the operating system of their virtual machines. When migrating to a Software as a Service (SaaS) solution such as SharePoint Online, Microsoft manages the infrastructure, operating system, and application layer. Therefore, operating system patching and maintenance shifts to Microsoft.

Step-by-Step Solution

1
Identify the initial cloud service model and the target cloud service model from the scenario.
The initial model is Infrastructure as a Service (IaaS) since the company hosts resources on an Azure virtual machine. The target model is Software as a Service (SaaS) since they are migrating to Microsoft SharePoint Online.
Understanding the starting and ending service models helps determine how the division of responsibility changes.
2
Analyze which responsibility transfers from the customer to Microsoft when moving from IaaS to SaaS.
In IaaS, the customer must maintain and patch the operating system of the virtual machine. In SaaS, the cloud provider (Microsoft) manages the entire application stack, including the underlying operating system.
Comparing responsibilities shows that operating system patching and maintenance shifts from the customer to Microsoft, whereas responsibilities like data classification and identity management remain with the customer.

Key Concept

Shared Responsibility Model
Estimated Time:45s
Rate this question

Topics

Shared Responsibility Model

More questions from this topic