Microsoft AZ-204 Online Practice Questions and Exam Preparation

Microsoft AZ-204 Online Questions & Answers

• Question 181:

  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 are developing a web app named mywebapp1. Mywebapp1 uses the address myapp1.azurewebsites.net. You protect mywebapp1 by implementing an Azure Web Application Firewall (WAF). The traffic to mywebapp1 is routed through an Azure Application Gateway instance that is also used by other web apps.

  You want to secure all traffic to mywebapp1 by using SSL.

  Solution: You configure mywebapp1 to run in an Azure App service environment (ASE).

  Does this meet the goal?

  A. Yes
  B. No
  B. No

  ---

  Explanation

  The Azure App service environment (ASE) is used to run an app in an isolated environment.

  https://docs.microsoft.com/en-us/azure/app-service/environment/intro

• Question 182:

  HOTSPOT

  You need to update the order workflow to address the issue when calling the Printer API App.

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

  NOTE: Each correct selection is worth one point.

  

  

  ---

  Box 1: fixed

  The 'Default' policy does 4 exponential retries and from my experience the interval times are often too short in situations.

  Box 2: PT60S

  We could set a fixed interval, e.g. 5 retries every 60 seconds (PT60S).

  PT60S is 60 seconds.

  Scenario: Calls to the Printer API App fail periodically due to printer communication timeouts.

  Printer communication timeouts occur after 10 seconds. The label printer must only receive up to 5 attempts within one minute.

  Box 3: 5

  https://michalsacewicz.com/error-handling-in-power-automate/

• Question 183:

  You are developing a .Net web application that stores data is Azure Consmos DB. The application must use the Core API and allow millions of reads and writes. The Azure Cosmos DII account has been created with multiple write region enabled. The application has been deployed to the East US2 and Central US region.

  You need to update the application to support multi-region writes.

  What are two possible ways to achieve this goal? Each correct answer presents parts of the solutions.

  NOTE: Each correct selection is worth one point.

  A. Update the ConnectionPolicy class for the Cosmos client and populate the PreferredLocations property based on the geo-proximity of the application.
  B. Update Azure Cosmos DB to use the Strong consistency level. Add indexed properties to the container to indicate region.
  C. Update the ConnectionPolicy class for the Cosmos client and set the UseMultipleWriteLocations property to true.
  D. Create and deploy a custom conflict resolution policy.
  E. Update Azure Cosmos DB to use the Session consistency level. Send the SessionToken property value from the FeedResponse object of the write action to the end- user by using a cookie.
  C. Update the ConnectionPolicy class for the Cosmos client and set the UseMultipleWriteLocations property to true.
  D. Create and deploy a custom conflict resolution policy.

  ---

  Explanation

  C: The UseMultipleWriteLocations of the ConnectionPolicy class gets or sets the flag to enable writes on any locations (regions) for geo-replicated database accounts in the Azure Cosmos DB service.

  Note: Once an account has been created with multiple write regions enabled, you must make two changes in your application to the ConnectionPolicy for the Cosmos client to enable the multi-region writes in Azure Cosmos DB. Within the ConnectionPolicy, set UseMultipleWriteLocations to true and pass the name of the region where the application is deployed to ApplicationRegion. This will populate the PreferredLocations property based on the geo-proximity from location passed in. If a new region is later added to the account, the application does not have to be updated or redeployed, it will automatically detect the closer region and will auto-home on to it should a regional event occur.

  Azure core API application " ConnectionPolicy class" cosmos db multiple write regions enabled

  D: With multi-region writes, when multiple clients write to the same item, conflicts may occur. When a conflict occurs, you can resolve the conflict by using different conflict resolution policies.

  Note: Conflict resolution policy can only be specified at container creation time and cannot be modified after container creation.

  https://docs.microsoft.com/en-us/dotnet/api/microsoft.azure.documents.client.connectionpolicy

  https://docs.microsoft.com/en-us/azure/cosmos-db/sql/how-to-multi-master

  https://docs.microsoft.com/en-us/azure/cosmos-db/sql/how-to-manage-conflicts

• Question 184:

  DRAG DROP

  You provision virtual machines (VMs) as development environments.

  One VM does not start. The VM is stuck in a Windows update process. You attach the OS disk for the affected VM to a recovery VM.

  You need to correct the issue.

  In which order should you perform the actions? To answer, move the appropriate actions from the list of actions to the answer area and arrange them in the correct order.

  Select and Place:

  

  

  ---

  Remove the update that causes the problem 1. Take a snapshot of the OS disk of the affected VM as a backup.

  2. Attach the OS disk to a recovery VM.

  3. Once the OS disk is attached on the recovery VM, run diskmgmt.msc to open Disk Management, and ensure the attached disk is ONLINE.

  4. (Step 1) Open an elevated command prompt instance (Run as administrator). Run the following command to get the list of the update packages that are on the attached OS disk:

  dism /image:<Attached OS disk>:\ /get-packages > c:\temp\Patch_level 5. (Step 2) Open the C:\temp\Patch_level.txt file, and then read it from the bottom up. Locate the update that's in Install Pending or Uninstall Pending state.

  6. Remove the update that caused the problem:

  dism /Image:<Attached OS disk>:\ /Remove-Package /PackageName:

  https://docs.microsoft.com/en-us/troubleshoot/azure/virtual-machines/troubleshoot-stuck-updating-boot-error

• Question 185:

  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 an HTTP triggered Azure Function app to process Azure Storage blob data. The app is triggered using an output binding on the blob.

  The app continues to time out after four minutes. The app must process the blob data.

  You need to ensure the app does not time out and processes the blob data.

  Solution: Use the Durable Function async pattern to process the blob data.

  Does the solution meet the goal?

  A. Yes
  B. No
  B. No

  ---

  Explanation

  Instead pass the HTTP trigger payload into an Azure Service Bus queue to be processed by a queue trigger function and return an immediate HTTP success response.

  Note: Large, long-running functions can cause unexpected timeout issues. General best practices include:

  Whenever possible, refactor large functions into smaller function sets that work together and return responses fast. For example, a webhook or HTTP trigger function might require an acknowledgment response within a certain time limit; it's common for webhooks to require an immediate response. You can pass the HTTP trigger payload into a queue to be processed by a queue trigger function. This approach lets you defer the actual work and return an immediate response.

  https://docs.microsoft.com/en-us/azure/azure-functions/functions-best-practices

• Question 186:

  HOTSPOT

  You deploy an ASP.NET web app to Azure App Service.

  You must monitor the web app by using Application Insights.

  You need to configure Application Insights to meet the requirements.

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

  NOTE: Each correct selection is worth one point.

  

  

  ---

  Box 1: Smart Detection

  Smart detection automatically warns you of potential performance problems and failure anomalies in your web application. It performs proactive analysis of the telemetry that your app sends to Application Insights. If there is a sudden rise in failure rates, or abnormal patterns in client or server performance, you get an alert. This feature needs no configuration. It operates if your application sends enough telemetry.

  Box 2: Snapshot Debugger

  When an exception occurs, you can automatically collect a debug snapshot from your live web application. The snapshot shows the state of source code and variables at the moment the exception was thrown. The Snapshot Debugger in Azure Application Insights monitors exception telemetry from your web app. It collects snapshots on your top-throwing exceptions so that you have the information you need to diagnose issues in production.

  Box 3: Profiler

  Azure Application Insights Profiler provides performance traces for applications running in production in Azure. Profiler:

  Captures the data automatically at scale without negatively affecting your users.

  Helps you identify the "hot" code path spending the most time handling a particular web request.

  https://docs.microsoft.com/en-us/azure/azure-monitor/app/proactive-diagnostics

  https://docs.microsoft.com/en-us/azure/azure-monitor/snapshot-debugger/snapshot-debugger

  https://docs.microsoft.com/en-us/azure/azure-monitor/profiler/profiler-overview

• Question 187:

  You are developing a user portal for a company.

  You need to create a report for the portal that lists information about employees who are subject matter experts for a specific topic. You must ensure that administrators have full control and cosent over the data.

  Which technology should you use?

  A. Microsoft Graph connectors
  B. Microosft graph API
  C. Microsoft Graph data connect
  C. Microsoft Graph data connect

  ---

  Explanation

  Data Connect grants a more granular control and consent model: you can manage data, see who is accessing it, and request specific properties of an entity. This enhances the Microsoft Graph model, which grants or denies applications access to entire entities.

  Microsoft Graph Data Connect augments Microsoft Graph's transactional model with an intelligent way to access rich data at scale. The data covers how workers communicate, collaborate, and manage their time across all the applications and services in Microsoft 365.

  Incorrect:

  Not B: The Microsoft Graph API is a RESTful web API that enables you to access Microsoft Cloud service resources. After you register your app and get authentication tokens for a user or service, you can make requests to the Microsoft Graph API.

  A simplistic definition of a Graph API is an API that models the data in terms of nodes and edges (objects and relationships) and allows the client to interact with multiple nodes in a single request.

  Not C: Microsoft Graph connectors, your organization can index third-party data so that it appears in Microsoft Search results.

  With Microsoft Graph connectors, your organization can index third-party data so that it appears in Microsoft Search results.

  https://docs.microsoft.com/en-us/graph/data-connect-concept-overview

• Question 188:

  HOTSPOT

  You are developing several microservices to run on Azure Container Apps. External HTTP ingress traffic has been enabled for the microservices.

  A deployed microservice must be updated to allow users to test new features. You have the following requirements:

  Enable and maintain a single URL for the updated microservice to provide to test users.

  Update the microservice that corresponds to the current microservice version.

  You need to configure Azure Container Apps.

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

  NOTE: Each correct selection is worth one point.

  

  

  ---

  Box 1: Revision Label

  Single URL for test users

  Enable and maintain a single URL for the updated microservice to provide to test users.

  Revision Labels

  For container apps with external HTTP traffic, labels are a portable means to direct traffic to specific revisions. A label provides a unique URL that you can use to route traffic to the revision that the label is assigned. To switch traffic between revisions, you can move the label from one revision to another.

  Labels keep the same URL when moved from one revision to another.

  A label can be applied to only one revision at a time.

  Allocation for traffic splitting isn't required for revisions with labels.

  Labels are most useful when the app is in multiple revision mode.

  You can enable labels, traffic splitting or both.

  Labels are useful for testing new revisions. For example, when you want to give access to a set of test users, you can give them the label's URL. Then when you want to move your users to a different revision, you can move the label to that revision.

  Box 2: Revision mode

  Current microservice activation

  Update the microservice that corresponds to the current microservice version.

  Revision modes

  The revision mode controls whether only a single revision or multiple revisions of your container app can be simultaneously active.

  Single revision mode

  By default, a container app is in single revision mode. In this mode, when a new revision is created, the latest revision replaces the active revision.

  Multiple revision mode

  Set the revision mode to multiple revision mode, to run multiple revisions of your app simultaneously. While in this mode, new revisions are activated alongside current active revisions.

  Note: Azure Container Apps implements container app versioning by creating revisions. A revision is an immutable snapshot of a container app version.

  The first revision is automatically provisioned when you deploy your container app.

  New revisions are automatically provisioned when you make a revision-scope change to your container app.

  While revisions are immutable, they're affected by application-scope changes, which apply to all revisions.

  You can create new revisions by updating a previous revision.

  You can retain up to 100 revisions, giving you a historical record of your container app updates.

  You can run multiple revisions concurrently.

  You can split external HTTP traffic between active revisions.

  https://learn.microsoft.com/en-us/azure/container-apps/revisions

• Question 189:

  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 an HTTP triggered Azure Function app to process Azure Storage blob data. The app is triggered using an output binding on the blob.

  The app continues to time out after four minutes. The app must process the blob data.

  You need to ensure the app does not time out and processes the blob data.

  Solution: Pass the HTTP trigger payload into an Azure Service Bus queue to be processed by a queue trigger function and return an immediate HTTP success response.

  Does the solution meet the goal?

  A. Yes
  B. No
  A. Yes

  ---

  Explanation

  Large, long-running functions can cause unexpected timeout issues. General best practices include:

  Whenever possible, refactor large functions into smaller function sets that work together and return responses fast. For example, a webhook or HTTP trigger function might require an acknowledgment response within a certain time limit; it's common for webhooks to require an immediate response. You can pass the HTTP trigger payload into a queue to be processed by a queue trigger function. This approach lets you defer the actual work and return an immediate response.

  https://docs.microsoft.com/en-us/azure/azure-functions/functions-best-practices

• Question 190:

  DRAG DROP

  You develop a gateway solution for a public facing news API.

  The news API back end is implemented as a RESTful service and hosted in an Azure App Service instance.

  You need to configure back-end authentication for the API Management service instance.

  Which target and gateway credential type should you use? To answer, drag the appropriate values to the correct parameters. Each value 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.

  Select and Place:

  

  

  ---

  Box 1: Azure Resource

  Box 2: Client cert

  API Management allows to secure access to the back-end service of an API using client certificates.

  https://docs.microsoft.com/en-us/rest/api/apimanagement/apimanagementrest/azure-api-management-rest-api-backend-entity