Practice Free AZ-204 Exam Online Questions

Topic 7, VanArsdel. Ltd

Case study

Overview

This is a case study. Case studies are not timed separately. You can use as much exam time as you would like to complete each case. However, there may be additional case studies and sections on this exam. You must manage your time to ensure that you are able to complete all questions included on this exam in the time provided.

To answer the questions included in a case study, you will need to reference information that is provided in the case study. Case studies might contain exhibits and other resources that provide more information about the scenario that is described in the case study. Each question is independent of the other questions in this case study.

At the end of this case study, a review screen will appear. This screen allows you to review your answers and to make changes before you move to the next section of the exam. After you begin a new section, you cannot return to this section.

To start the case study

To display the first question in this case study, click the Next button. Use the buttons in the left pane to explore the content of the case study before you answer the questions. Clicking these buttons displays information such as business requirements, existing environment, and problem statements. If the case study has an All Information tab, note that the information displayed is identical to the information displayed on the subsequent tabs. When you are ready to answer a question, click the Question button to return to the question.

Background

VanArsdel. Ltd. is a global office supply company. The company fs based in Canada and has retail store locations across the world. The company is developing several cloud-based solutions to support their stores, distributors, suppliers, and delivery services.

Current environment

Requirements

The application components must meet the following requirements:

Corporate website

• Secure the website by using SSL

• Minimize costs tor data storage and hosting.

• Implement native GitHub workflows for continuous integration and continuous deployment (Cl/CO).

• Distribute the website content globally for local use.

• Implement monitoring by using Application Insights and availability web tests including SSL certificate validity and custom header value verification.

• The website must have 99.95 percent uptime.

Corporate website

The company provides a public website located at htlp://www. vanaisdelttd.com. The website consists of a React JavaScript user interface, HTML,CSS, image assets, and several APIs hosted in Azure functions.

Retail store locations

• Azure Functions must process data immediately when data is uploaded to Blob storage. Azure Functions must update Azure Cosmos D3 by using native SQL language queries.

• Audit store sale transaction information nightly to validate data, process sates financials, and reconcile inventory.

Delivery services

• Store service telemetry data in Azure Cosmos DB by using an Azure Function. Data must include an item id. the delivery vehicle license plate, vehicle package capacity, and current vehicle location coordinates.

• Store delivery driver profile information in Azure Active Directory Azure AD) by using an Azure Function called from the corporate website.

Inventory services

The company has contracted a third-party to develop an API for inventory processing that requires access to a specific blob within the retail store storage account for three months to include read-only access to the data.

Security

• All Azure Functions must centralize management and distribution of configuration data for different environments and geographies, encrypted by using a company-provided RSA-HSM key.

• Authentication and authorization must use Azure AD and services must use managed identities where possible.

Retail Store Locations

• You must perform a point-in-time restoration of the retail store location data due to an unexpected and accidental deletion of data.

• Azure Cosmos DB queries from the Azure Function exhibit high Request Unit (RU) usage and contain multiple, complex queries that exhibit high point read latency for large items as the function app is scaling.

HOTSPOT

You need to Implement the retail store location Azure Function.

How should you configure the solution? To answer, select the appropriate options in the answer area. NOTE: Each correct selection is worth one point.

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Correct Answer:

Explanation:

Scenario: Retail store locations: Azure Functions must process data immediately when data is uploaded to Blob storage.

Box 1: HTTP

Binding configuration example: https://<storage_account_name>.blob.core.windows.net

Box 2: Input

Read blob storage data in a function: Input binding

Box 3: Blob storage

The Blob storage trigger starts a function when a new or updated blob is detected.

Azure Functions integrates with Azure Storage via triggers and bindings. Integrating with Blob storage allows you to build functions that react to changes in blob data as well as read and write values.

Reference: https://docs.microsoft.com/en-us/azure/azure-functions/functions-bindings-storage-blob-trigger

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 develop Azure solutions.

You must grant a virtual machine (VM) access to specific resource groups in Azure Resource Manager.

You need to obtain an Azure Resource Manager access token.

Solution: Run the Invoke-RestMethod cmdlet to make a request to the local managed identity for Azure resources endpoint.

Does the solution meet the goal?

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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 develop Azure solutions.

You must grant a virtual machine (VM) access to specific resource groups in Azure Resource Manager.

You need to obtain an Azure Resource Manager access token.

Solution: Run the Invoke-RestMethod cmdlet to make a request to the local managed identity for Azure resources endpoint.

Does the solution meet the goal?

Reveal Solution Hide Solution

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 develop Azure solutions.

You must grant a virtual machine (VM) access to specific resource groups in Azure Resource Manager.

You need to obtain an Azure Resource Manager access token.

Solution: Run the Invoke-RestMethod cmdlet to make a request to the local managed identity for Azure resources endpoint.

Does the solution meet the goal?

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HOTSPOT

You are developing a solution by using the Azure Event Hubs SDK. You create a standard Azure Event Hub with 16 partitions. You implement eight event processor clients.

You must balance the load dynamically when an event processor client fails. When an event processor client fails, another event processor must continue processing from the exact point at which the failure occurred. All events must be aggregate and upload to an Azure Blob storage account

You need to implement event processing recovery for the solution.

Which SDK features should you use? To answer, select the appropriate options in the answer area.

Each correct selection is worth one point.

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Correct Answer:

HOTSPOT

You are developing a solution to store documents in Azure Blob storage. Customers upload documents to multiple containers. Documents consist of PDF, CSV, Microsoft Office format, and plain text files.

The solution must process millions of documents across hundreds of containers.

The solution must meet the following requirements:

* Document must the categorized by a customer identifier as they are uploaded to the storage account.

* Allow filtering by the customer identifier.

* Allow searching of information contained within a document.

* Minimize costs.

You created and configure a standard general-purpose v2 storage account to support the solution.

You need to implement the solution. NOTE: Each correct selection is worth one point.

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Correct Answer:

Explanation:

Azure Blob Index tags: https://docs.microsoft.com/en-us/azure/storage/blobs/storage-blob-index-how-to?tabs=azure-portal

Azure Cognitive Search: Search inside documents

DRAG DROP

Contoso, Ltd. provides an API to customers by using Azure API Management (APIM). The API authorizes users with a JWT token.

You must implement response caching for the APIM gateway. The caching mechanism must detect the user ID of the client that accesses data for a given location and cache the response for that user ID.

You need to add the following policies to the policies file:

• a set-variable policy to store the detected user identity

• a cache-lookup-value policy

• a cache-store-value policy

• a find-and-replace policy to update the response body with the user profile information

To which policy section should you add the policies? To answer, drag the appropriate sections to the correct policies. Each section may be used once, more than once, or not at all. You may need to drag the split bar between panes or scroll to view content. NOTE: Each correct selection is worth one point

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Correct Answer:

Explanation:

Box 1: Inbound.

A set-variable policy to store the detected user identity.

Example:

<policies>

<inbound>

<!– How you determine user identity is application dependent –>

<set-variable

name="enduserid"

value="@(context.Request.Headers.GetValueOrDefault("Authorization","").Split(‘ ‘)[1].AsJwt()?.Subject)" />

Box 2: Inbound

A cache-lookup-value policy

Example:

<inbound>

<base />

<cache-lookup vary-by-developer="true | false" vary-by-developer-groups="true | false" downstream-caching-type="none | private | public" must-revalidate="true | false">

<vary-by-query-parameter>parameter name</vary-by-query-parameter> <!– optional, can repeated several times –>

</cache-lookup>

</inbound>

Box 3: Outbound

A cache-store-value policy.

Example:

<outbound>

<base />

<cache-store duration="3600" />

</outbound>

Box 4: Outbound

A find-and-replace policy to update the response body with the user profile information.

Example:

<outbound>

<!– Update response body with user profile–>

<find-and-replace

from=’"$userprofile$"’

to="@((string)context.Variables["userprofile"])" />

<base />

</outbound>

Reference:

https://docs.microsoft.com/en-us/azure/api-management/api-management-caching-policies

https://docs.microsoft.com/en-us/azure/api-management/api-management-sample-cache-by-key

HOTSPOT

You are developing an application that uses a premium block blob storage account. You are optimizing costs by automating Azure Blob Storage access tiers.

You apply the following policy rules to the storage account.

You must determine the implications of applying the rules to the data. (Line numbers are included for reference only.)

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Correct Answer:

Explanation:

HOTSPOT

You have an Azure App Service web app named App1. App1 has Application Insights enabled.

You plan to review the configuration of telemetry sampling for Application Insights of App1.

You need to author an analytics query that will return the sampling rate.

How should you complete the provided query? To answer, select the appropriate options in the answer area.

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Correct Answer:

HOTSPOT

You are developing an Azure Functions app named App1. You also plan to use cross-origin requests (CORS).

You have the following requirements:

• App1 functions must securely access an Azure Blob Storage account.

• Access to the Azure Blob Storage account must not require the provisioning or rotation of secrets.

• JavaScript code running in a browser on an external host must not be allowed to interact with the function.

You need to implement App1.

Which configuration should you use? To answer, select the appropriate options in the answer area. NOTE: Each correct selection is worth one point.

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Correct Answer: