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Difficulty: MediumInfrastructure as a Service (IaaS)

An animation studio deploys several Azure Virtual Machines (IaaS) to run proprietary 3D rendering software that requires custom graphics driver configurations. Under the shared responsibility model, which of the following tasks is the responsibility of Microsoft?

  1. A
    Applying security patches and updates to the guest operating system of the virtual machines
  2. B
    Installing and updating the database software and middleware used by the rendering applications
  3. Maintaining the physical server hardware and hypervisor infrastructureAnswer
  4. D
    Managing the software licenses and user access profiles for the rendering tool as a Software as a Service (SaaS) application

Answer

Maintaining the physical server hardware and hypervisor infrastructure
Maintaining the physical server hardware and hypervisor infrastructure is correct because in the Infrastructure as a Service (IaaS) model, Microsoft is responsible for managing the physical infrastructure, physical security, power, cooling, and the virtualization hypervisor that hosts the virtual machines.

Step-by-Step Solution

1
Identify the cloud service model used in the scenario.
The scenario mentions Azure Virtual Machines, which belongs to the Infrastructure as a Service (IaaS) category.
Understanding the service model is necessary to apply the correct shared responsibility boundaries.
2
Determine the boundary of responsibility between the customer and Microsoft for IaaS.
In IaaS, Microsoft manages the physical hosts, datacenters, and the virtualization layer. The customer manages the guest operating system, middleware, databases, applications, and network controls.
This boundary distinguishes which management tasks belong to which party.
3
Evaluate the options against the identified responsibilities to find Microsoft's task.
Maintaining the physical server hardware and hypervisor infrastructure is managed by Microsoft, while guest OS patching, middleware/database management, and application licensing are customer responsibilities.
This identifies the correct task that Microsoft is responsible for.

Key Concept

Infrastructure as a Service (IaaS) Shared Responsibility Model
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Topics

Infrastructure as a Service (IaaS)

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