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Difficulty: EasyInfrastructure as a Service (IaaS)

A medical research laboratory deploys a group of virtual machines in Microsoft Azure to run data analysis software. Under the Infrastructure as a Service (IaaS) model, which of the following components is Microsoft responsible for managing?

  1. A
    Patching the guest operating system
  2. B
    Configuring the application database engine
  3. Maintaining the physical host hardware and hypervisorAnswer
  4. D
    Managing user access permissions inside the application

Answer

Maintaining the physical host hardware and hypervisor
Under the Infrastructure as a Service (IaaS) model, the cloud provider (Microsoft) is responsible for the physical infrastructure, including physical servers, networking hardware, power, cooling, and the virtualization hypervisor. The customer is responsible for everything from the operating system upward, including guest OS patching, middleware, databases, and application data.

Step-by-Step Solution

1
Identify the cloud service model used in the scenario.
The scenario specifies Infrastructure as a Service (IaaS) using Azure Virtual Machines.
Determining the cloud service model establishes the correct shared responsibility boundary.
2
Recall the division of responsibility in the IaaS model.
Microsoft manages the physical infrastructure and hypervisor, while the customer manages the operating system, middleware, and applications.
This allows us to identify the specific components that Microsoft is responsible for managing.

Key Concept

Shared responsibility model in Infrastructure as a Service (IaaS)
Estimated Time:45s
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Topics

Infrastructure as a Service (IaaS)

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