微软Azure基础考试AZ-900：故障 tolerant策略确保跨数据中心服务器可用

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DB0C5FF97B7C1B4F5B16D4BD74B4370E

resizing it when it's not needed.

References:

https://docs.microsoft.com/en-us/azure/architecture/cloud-adoption/appendix/azure-scaffold

QUESTION 16

Your company has an on-premises network that contains multiple servers.

The company plans to reduce the following administrative responsibilities of network administrators:

Backing up application data

Replacing failed server hardware

Managing physical server security

Updating server operating systems

Managing permissions to shared documents

The company plans to migrate several servers to Azure virtual machines.

You need to identify which administrative responsibilities will be reduced after the planned migration.

Which two responsibilities should you identify? Each correct answer presents a complete solution.

NOTE: Each correct selection is worth one point.

A. Replacing failed server hardware

B. Backing up application data

C. Managing physical server security

D. Updating server operating systems

E. Managing permissions to shared documents

Correct Answer: AC

Section: Understand Cloud Concepts

Explanation

Explanation/Reference:

Explanation:

Azure virtual machines run on Hyper-V physical servers. The physical servers are owned and managed by

Microsoft. As an Azure customer, you have no access to the physical servers. Microsoft manage the

replacement of failed server hardware and the security of the physical servers so you don’t need to.

Incorrect Answers:

B: Microsoft have no control over the applications you run on the virtual machines. Therefore, it is your

responsibility to ensure that application data is backed up.

D: Microsoft do not manage the operating systems you run on the virtual machines. Therefore, it is your

responsibility to ensure that the operating systems are updated.

E: Microsoft have no control over the shared folders you host on the virtual machines. Therefore, it is your

responsibility to ensure that folder permissions are configured appropriately.

QUESTION 17

You plan to provision Infrastructure as a Service (IaaS) resources in Azure.

Which resource is an example of IaaS?

A. an Azure web app

B. an Azure virtual machine

C. an Azure logic app

D. an Azure SQL database

Correct Answer: B

Section: Understand Cloud Concepts

Explanation

DB0C5FF97B7C1B4F5B16D4BD74B4370E

Explanation/Reference:

Explanation:

An Azure virtual machine is an example of Infrastructure as a Service (IaaS).

Azure web app, Azure logic app and Azure SQL database are all examples of Platform as a Service

(Paas).

References:

https://azure.microsoft.com/en-gb/overview/what-is-iaas/

https://azure.microsoft.com/en-gb/overview/what-is-paas/

QUESTION 18

A team of developers at your company plans to deploy, and then remove, 50 virtual machines each week.

All the virtual machines are configured by using Azure Resource Manager templates.

You need to recommend which Azure service will minimize the administrative effort required to deploy and

remove the virtual machines.

What should you recommend?

A. Azure Reserved Virtual Machine (VM) Instances

B. Azure DevTest Labs

C. Azure virtual machine scale sets

D. Microsoft Managed Desktop

Correct Answer: B

Section: Understand Cloud Concepts

Explanation

Explanation/Reference:

Explanation:

DevTest Labs creates labs consisting of pre-configured bases or Azure Resource Manager templates.

By using DevTest Labs, you can test the latest versions of your applications by doing the following tasks:

Quickly provision Windows and Linux environments by using reusable templates and artifacts.

Easily integrate your deployment pipeline with DevTest Labs to provision on-demand environments.

Scale up your load testing by provisioning multiple test agents and create pre-provisioned environments

for training and demos.

Reference:

https://docs.microsoft.com/en-us/azure/lab-services/devtest-lab-overview

QUESTION 19

Note: This question is part of a series of questions that present the same scenario. Each question

in the series contains a unique solution that might meet the stated goals. Some question sets

might have more than one correct solution, while others might not have a correct solution.

After you answer a question in this section, you will NOT be able to return to it. As a result, these

questions will not appear in the review screen.

You plan to deploy several Azure virtual machines.

You need to ensure that the services running on the virtual machines are available if a single data center

fails.

Solution: You deploy the virtual machines to two or more resource groups.

Does this meet the goal?

A. Yes

B. No

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