| Question.16 You plan to migrate several servers from an on-premises network to Azure. What is an advantage of using a public cloud service for the servers over an on-premises network? (A) The public cloud is owned by the public, NOT a private corporation (B) The public cloud is a crowd-sourcing solution that provides corporations with the ability to enhance the cloud (C) All public cloud resources can be freely accessed by every member of the public (D) The public cloud is a shared entity whereby multiple corporations each use a portion of the resources in the cloud |
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Answer is (D) The public cloud is a shared entity whereby multiple corporations each use a portion of the resources in the cloud
The public cloud is a shared entity whereby multiple corporations each use a portion of the resources in the cloud. The hardware resources (servers, infrastructure etc.) are managed by the cloud provider. Multiple companies create resources such as virtual machines and virtual networks on the hardware resources.
Incorrect Answers:
A: The public cloud is not owned by the public. In the case of Microsoft Azure, the cloud is owned by Microsoft.
B: The public cloud is a not crowd-sourcing solution. In the case of Microsoft Azure, the cloud is owned by Microsoft.
C: It is not true that public cloud resources can be freely accessed by every member of the public. You pay for a cloud subscription and create accounts for your users to access your cloud resources. No one can access your cloud resources until you create user accounts and provide the appropriate access permissions.
| Question.17 In which type of cloud model are all the hardware resources owned by a third-party and shared between multiple tenants? (A) private (B) hybrid (C) public (D) None of these |
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Answer is (C) public
Microsoft Azure, Amazon Web Services and Google Cloud are three examples of public cloud services. Microsoft, Amazon and Google own the hardware. The tenants are the customers who use the public cloud services.
| Question.18 You have 50 virtual machines hosted on-premises and 50 virtual machines hosted in Azure. The on-premises virtual machines and the Azure virtual machines connect to each other. Which type of cloud model is this? (A) hybrid (B) private (C) public (D) None of these |
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Answer is (A) hybrid
References:
https://azure.microsoft.com/en-gb/overview/what-is-hybrid-cloud-computing/
| Question.19 To complete the sentence, select the appropriate option in the answer area.  |
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Azure Cosmos DB is an example of a platform as a service (PaaS) cloud database provider.
Reference:
https://docs.microsoft.com/en-us/azure/cosmos-db/database-security
| Question.20 To complete the sentence, select the appropriate option in the answer area.  |
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Answer is in the public cloud
A private cloud is hosted in your datacenter. Therefore, you cannot close your datacenter if you are using a private cloud.
A public cloud is hosted externally, for example, in Microsoft Azure. An organization that hosts its infrastructure in a public cloud can close its data center.
Public cloud is the most common deployment model. In this case, you have no local hardware to manage or keep up-to-date ג€” everything runs on your cloud provider’s hardware.
Microsoft Azure is an example of a public cloud provider.
In a private cloud, you create a cloud environment in your own datacenter and provide self-service access to compute resources to users in your organization.
This offers a simulation of a public cloud to your users, but you remain completely responsible for the purchase and maintenance of the hardware and software services you provide.
Reference:
https://docs.microsoft.com/en-gb/learn/modules/principles-cloud-computing/4-cloud-deployment-models