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Difficulty: EasyInfrastructure as a Service (IaaS)

A software development firm deploys a web application on Azure Virtual Machines. Under the Microsoft Shared Responsibility Model, which task is the responsibility of Microsoft?

  1. A
    Installing and configuring software updates for the virtual machine's operating system
  2. B
    Configuring network routing and firewall rules within the customer's virtual network
  3. Ensuring the physical security and maintenance of the virtualization host serversAnswer
  4. D
    Managing the user authentication and access controls for the database applications

Answer

Ensuring the physical security and maintenance of the virtualization host servers
Ensuring the physical security and maintenance of the virtualization host servers is the responsibility of the cloud provider (Microsoft) in an Infrastructure as a Service (IaaS) model. Microsoft is responsible for managing the physical infrastructure, power, cooling, and the physical host hardware.

Step-by-Step Solution

1
Identify the cloud service model being used in the scenario.
The scenario describes deploying web applications on Azure Virtual Machines, which represents the Infrastructure as a Service (IaaS) model.
Understanding the service model determines the boundary of the Microsoft Shared Responsibility Model.
2
Determine the distribution of responsibilities for the physical infrastructure versus the VM software.
In IaaS, Microsoft retains responsibility for the physical host, physical network, and physical datacenter security, while the customer manages the operating system, applications, and network configuration.
This identifies that physical security and maintenance of the host hardware falls under Microsoft's responsibilities.

Key Concept

Under Infrastructure as a Service (IaaS), Microsoft manages the physical resources (physical security, hosts, and datacenter hardware) while the customer manages the operating systems, applications, and data.
Estimated Time:45s
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Topics

Infrastructure as a Service (IaaS)

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