AZ-400 Microsoft Azure DevOps Solutions Free Practice Exam Questions (2025 Updated)

Step 1: Navigate to the Project1 Repository

In your browser, go to your Azure DevOps organization:https://dev.azure.com/{YourOrganizationName}

In the left menu, select the project named Project1.

In the left menu under Repos, click on Files.

Step 2: Initialize the Main Branch (if it doesn’t exist)

If the main branch doesn’t exist (because the repo is empty):

In the Repos > Files view, you’ll see a message: “This repository is empty.”

Click on the Initialize button.

Choose the default branch name as main and create a README file (or any file to initialize).

Click Initialize.

This creates the main branch in your repository.

Step 3: Set Up Branch Protection for the Main Branch

Branch protection ensures that all changes go through a pull request (PR), and that PRs are linked to work items (for traceability).

In the Repos view, click on Branches in the left menu.

Locate the main branch in the list.

Click on the three dots (...) next to main and select Branch policies.

Step 4: Configure Branch Policies for main

In the Branch policies for the main branch:

Require a minimum number of reviewers:

Enable this option and set to 1 or more as per your team’s standards.

Check for linked work items:

Enable the Check for linked work items option.

This ensures that every PR has at least one linked work item.

Require a linked work item:

This enforces the traceability requirement you mentioned.

Optionally, you can also:

Enable build validation if you have a pipeline to validate builds.

Enforce merge strategies (like squash merge).

Click Save changes at the bottom.

1. Open Microsoft Azure Portal

2. Log into your Azure account, select App Services in the Azure portal left navigation, and then select configureaz400-9940427-func1.

3. On the app page, select Deployment Center in the left menu.

4. On the Build provider page, select Azure Pipelines (Preview), and then select Continue.

5. On the Configure page, in the Code section:

For GitHub, drop down and select the Organization, Repository, and Branch you want to deploy continuously.

6. Select Continue.

7. On the Test page, choose whether to enable load tests, and then select Continue.

8. Depending on your App Service plan pricing tier, you may see a Deployto staging page. Choose whether to enable deployment slots, and then select Continue.

9. After you configure the build provider, review the settings on the Summary page, and then select Finish.

Sign in to the Azure portal.

Navigate to the container registry az40010480345acr1.

Under Services, select Webhooks.

Select the existing webhook https://contoso.com/statushook, and double-click on itto get its properties.

For Trigger actions select image push

Example web hook:

Enable Remote Debugging

Before we start a debugging session to our Azure Function app we need to enable the functionality.

Navigate in the Azure portal to your function app fa-11566895

Go to the “Application settings”

Under “Debugging” set Remote Debugging to On and set Remote Visual Studio version to 2017.

To ensure that your Azure Web App namedaz400-38443478-mainsupports rolling upgrades and only 10 percent of users connect to the updated version of the app, you can use deployment slots with the followingsteps:

Create a Deployment Slot:

Navigate to the Azure Portal.

Go to your Web Appaz400-38443478-main.

SelectDeployment slotsin the menu.

Click onAdd Slot.

Name the slot (e.g.,staging) and if needed, clone settings from the production slot.

Configure the Traffic Percentage:

In the Deployment Slots menu, you will see a column forTraffic %.

Set the traffic percentage to10%for thestagingslot1.

This will route only 10% of the traffic to the updated version of the app in thestagingslot.

Deploy the Updated App to the Staging Slot:

Deploy yourupdated application to thestagingslot.

Test the application in thestagingslot to ensure it’s working as expected.

Complete the Rolling Upgrade:

Once you’re satisfied with the performance and stability of the app in thestagingslot, you can graduallyincrease the percentage of traffic until you’re ready to swap with the production slot.

To swap slots, go to theDeployment slotsmenu and click onSwapwith the production slot.

By using deployment slots, you can achieve rolling upgrades with minimal administrative effort, as it allows you to test the new version on a subset of users before fully releasing it. Remember to adjust the traffic percentage and monitor the application’s performance throughout the process.

Set up staging environments in Azure App Service

1. Open Microsoft Azure Portal

2. Log into your Azure account, select your app's resource page, in the left pane, selectDeployment slots > Add Slot.

3. In the Add a slot dialog box, give the slot a name, and select whether to clone an app configuration from another deployment slot. Select Add to continue.

4. After the slot is added, select Close to close the dialogbox. The new slot is now shown on the Deployment slots page. By default, Traffic % is set to 0 for the new slot, with all customer traffic routed to the production slot.

5. Select the new deployment slot to open that slot's resource page.

6. Change TRAFFIC % to 10

Task 11: Create an Artifact Feed with Specific Retention Policies

Step 1: Navigate to Artifacts

In your Azure DevOps Project (Project1), click on the Artifacts section in the left menu.

Step 2: Create a New Feed

Click on the + New feed button.

In the Name field, enter:

nginx

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artifact_feed

Choose the visibility of the feed:

Project scoped (only accessible to Project1).

Or Organization scoped (accessible across your Azure DevOps organization).

Leave other settings at default unless you have specific permissions or upstream sources.

Click Create.

This creates a new feed named artifact_feed.

Step 3: Configure Retention Policies

In the Artifacts section, click on the feed named artifact_feed to open its details page.

In the top-right corner, click on the three dots (...) and select Feed settings.

Step 4: Set the Maximum Number of Versions to Retain

In the Feed settings page, find the Retention policies section.

Set Maximum number of versions per package to:

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10

Click Save.

This ensures that only the latest 10 versions of any package are retained in the feed.

Step 5: Set the Downloaded Package Retention Period

In the Feed settings page, under Retention policies, find Downloaded package retention.

Set Number of days to retain downloaded packages to:

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90

Click Save.

This ensures that downloaded packages will be retained in the cache for 90 days before deletion.

To ensure that the webhook athttps://contoso.com/statushookis called every time the repository namedaz40038443478acr1receives a new version of an image nameddotnetapp, you can follow these steps to configure a webhook in Azure Container Registry:

Navigate to the Azure Container Registry:

Go to the Azure Portal.

Find and select yourAzure Container Registry instanceaz40038443478acr1.

Create a New Webhook:

UnderServices, selectWebhooks.

Click on+ Addto create a new webhook.

Fill in the form with the following information:

Webhook name: Enter a unique name for your webhook.

ServiceURI: Enterhttps://contoso.com/statushook.

Custom headers: (Optional) Add any headers you want to pass along with the POST request.

Trigger actions: SelectPushto trigger the webhook on image push events.

Scope: Specify the scope asaz40038443478acr1:dotnetappto target the specific image.

Status: Set toEnabled.

Save the Webhook Configuration:

Review the information and clickCreateto save the webhook.

Once configured, the webhook will send a POST request tohttps://contoso.com/statushookwhenever a new version of thedotnetappimage is pushed to theaz40038443478acr1repository in your Azure Container Registry1.

This setup will automate the notification process, ensuring that the specified webhook is called with each new image version, thus fulfilling the task requirements.

Step 1: Create a Project Wiki

Navigate to Azure DevOps:

Go to Azure DevOps and sign inwith your credentials.

Select Your Project:

Choose Project1 from your list of projects.

Create a Wiki:

In the left-hand menu, select Wiki.

Click on Create project wiki.

Enter the name Wiki1 and click Create.

Step 2: Add Mermaid Syntax to Render a Diagram

Open the Wiki Page:

Navigate to the newly created Wiki1.

Edit the Wiki Page:

Click on Edit to start editing the wiki page.

Insert Mermaid Diagram:

Use the following Mermaid syntax to render a diagram. For example, to render a simple flowchart, you canuse:

```mermaid

graph TD;

A-->B;

A-->C;

B-->D;

C-->D;

Save the Page:

Click on Save to save your changes.

Step 3: Render the TCP Handshake Diagram

Convert TCPHandshake.png to Mermaid Syntax:

Since you have a sample diagram in C:\Resources\TCPHandshake.png, you need to convert this diagram into Mermaid syntax. Here’s an example of how a TCP handshake might look in Mermaid syntax:

```mermaid

sequenceDiagram

participant Client

participant Server

Client->>Server: SYN

Server-->>Client: SYN-ACK

Client->>Server: ACK

Add the Diagram to the Wiki:

Replace the sample Mermaid syntax with the TCP handshake diagram syntax in the wiki page.

Save the Page:

Click on Save to save your changes.

By following these steps, you will have created a project wiki named Wiki1 and used Mermaid syntax to render a diagram

1. To enable automatictuning on a single database, navigate to the database in the Azure portal and select Automatic tuning.

2. Select the automatic tuning options you want to enable and select Apply.

Note: Individual automatic tuning settings can be separately configuredfor each database. You can manually configure an individual automatic tuning option, or specify that an option inherits its settings from the server.

Step 1: Create an instance of Azure Application Insights

1. Open Microsoft Azure Portal

2. Log into your Azure account, Select Create a resource > Developer tools > Application Insights.

3. Enter the following settings, and then select Review + create.

Name: az400-9940427-main

Step 2: Configure App Insights SDK

4. Open your ASP.NET Core Web App project in Visual Studio > Right-click on the AppName in theSolution Explorer > Select Add > Application Insights Telemetry.

5. Click the Get Started button

6. Select your account and subscription > Select the Existing resource you created in the Azure portal > Click Register.

Step 1: Access Azure DevOps

Open your browser and navigate to https://aex.dev.azure.com .

You will be prompted to sign in. Enter the following credentials:

Username: UserUser1-48901628@cxamUsers.com

Password: aFpJ2j-6M!

Click Next or Sign in to proceed.

Note: If you see any Microsoft security challenge (like phone or email verification), follow the instructions to complete it.

Step 2: Sign Up for Azure DevOps

After signing in, you’ll see a prompt to sign up for Azure DevOps.

Use the default settings provided by Azure DevOps for the sign-up process (region, default name, etc.).

Click Continue or Start free with Azure DevOps.

An Azure DevOps Organization is a container for your projects and resources. Default settings are usually fine for new organizations.

Step 3: Create the Organization

Enter a name for your organization. Azure DevOps will suggest a default name (like yourname or org-name), but you can change it if you prefer.

Verify the region is correct.

Click Continue to create the organization.

Your Azure DevOps organization is now created. It’s the top-level container for all your projects.

Step 4: Create a Private Project Named Project1

In your Azure DevOps portal, find the "New Project" button and click it.

Enter the following details:

Project Name: Project1

Description: (optional)

Visibility: Private

Click Create.

A private project means that only users you add can see or access it. This is important for security and privacy.

Step 5: Enforce Maximum File Size for Repositories

By default, Azure DevOps allows files up to 100 MB to be pushed. To ensure the maximum file size for repositories in Project1 is 2 MB, you can enforce this using a pipeline validation.

Azure DevOps does not provide a direct setting for file size limits. However, you can create a pipeline to validate file size on pull requests and block changes if a file exceeds 2 MB.

Here’s how to do it:

Option 1: Enforce with a pipeline validation for pull requests

In your Project1, create a new pipeline.

Use the following YAML for the pipeline:

yaml

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trigger: none

pr:

branches:

include:

- "*"

jobs:

- job: CheckFileSize

pool:

vmImage: 'ubuntu-latest'

steps:

- script: |

echo "Checking file sizes in the PR..."

git fetch origin +refs/pull/*/merge:refs/remotes/origin/pr/*

large_files=$(git diff --cached --name-only | xargs -I{} du -b {} | awk '$1 > 2097152 {print $2}')

if [ -n "$large_files" ]; then

echo "Error: The following files exceed 2 MB:"

echo "$large_files"

exit 1

fi

displayName: 'Check file sizes in PR'

This pipeline will:

Run on pull requests only.

Check the size of all files in the pull request.

If any file is larger than 2 MB (2,097,152 bytes), it will fail the pipeline and block the PR.

Option 2: Local Git configuration (for each developer)

On each developer’s machine, run this command in their local repository:

bash

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git config --local core.bigFileThreshold 2M

This limits the file threshold for checkout, but does not prevent large files from being pushed. Using the pipeline validation (Option 1) is more secure for team environments.

1. In Azure portal navigate to the az400-9940427-main app.

2. Scroll down to the Settings groupin the left navigation.

3. Select Managed identity.

4. Within the System assigned tab, switch Status to On. Click Save.

1. Open Microsoft Azure Portal

2. Log intoyour Azure account and go to App Service and look under Monitoring then you will see Alert.

3. Select Add an alert rule

4. Configure the alert rule as per below and click Ok.

Source: Alert on Metrics

Resource Group: az400-9940427-main

Resource: az400-9940427-main

Threshold: 5

Period: Over the last 5 minutes

Webhook: https://contoso.com/notify

To store signed images in an Azure Container Registry (ACR) instance and support your planned images while minimizing costs, you need to modify the SKU of your ACR instance to one that supports content trust and image signing. Here’s how you can do it:

Determine the Appropriate SKU:

Content trust and image signing are features of thePremiumservice tier of Azure ContainerRegistry1.

If cost minimization is a priority, ensure that the Premium tier is necessary for your use case. If you require content trust, the Premium tier is the appropriate choice.

Modify the SKU of the ACR Instance:

Navigate to the Azure Portal.

Go to your ACR instanceaz40038443478act1.

SelectUpdatefrom the overview pane.

Choose thePremiumSKU from the SKU drop-down menu2.

Review the changes and pricing, then save the configuration.

By upgrading to the Premium SKU, you’ll be able to store signed images in your ACR instance. Remember to monitor your usage and costs to ensure they align with your budget and requirements.

To enable streaming of diagnostic telemetry for asingle or a pooled database, follow these steps:

1. Go to Azure SQL database resource.

2. Select Diagnostics settings.

3. Select Turn on diagnostics if no previous settings exist, or select Edit setting to edit a previous setting. You can create up to three parallel connections to stream diagnostic telemetry.

4. Select Add diagnostic setting to configure parallel streaming of diagnostics data to multiple resources.

5. Enter a setting name for your own reference.

6. Select a destination resource for the streaming diagnostics data: Archive to storage account, Stream to an event hub, or Send to Log Analytics.

7. For the standard, event-based monitoring experience, select the following check boxes for database diagnostics log telemetry: Query Store Runtime Statistics

8. For an advanced, one-minute-based monitoring experience, select the check box for Basic metrics.

9. Select Save.

1. Open Microsoft Azure Portal

2. Log into your Azure account and go to App Service and look under Monitoring then you will see Alert.

3. Select Add an alert rule

4. Configure the alert rule as per belowand click Ok.

Source: Alert on Metrics

Resource Group: az400-9940427-main

Resource: az400-9940427-main

Threshold: 5

Period: Over the last 5 minutes

Webhook: https://contoso.com/notify

To configure your Azure Functionaz400-38443478-functto automatically update whenever new code is committed to the main branch of the specified GitHub repository, you can use GitHub Actions for continuous deployment. Here’s how to set it up:

Create a GitHub Actions Workflow:

In your GitHub repository, navigate to the.github/workflows/directory.

Create a new file for your workflow (e.g.,azure-function-cd.yml).

Define the Workflow:

In the workflow file, define the steps for the build and deployment process.

Use theAzure/functions-actionto deploy to your Azure Function App.

Set up triggers for themainbranch to initiate the workflow on every commit.

Generate Deployment Credentials:

In the Azure Portal, navigate to your Function Appaz400-38443478-funct.

Download the publish profile from theOverviewsection by clicking onGet publish profile.

Store the Publish Profile as a GitHub Secret:

In your GitHub repository, go toSettings>Secrets and variables>Actions.

Create a new secret (e.g.,AZURE_FUNCTIONAPP_PUBLISH_PROFILE) and paste the content of the publish profile.

Configure the Workflow to Use the Secret:

In the workflow file, reference the secret to authenticate the deployment to Azure.

Here’s a sample GitHub Actions workflow snippet:

name: Deploy Azure Function

on:

push:

branches:

- main

jobs:

build-and-deploy:

runs-on: ubuntu-latest

steps:

- uses: actions/checkout@v2

- name: Set up Python version

uses: actions/setup-python@v2

with:

python-version: '3.x'

- name: Install dependencies

run: |

pip install -r requirements.txt

- name: Deploy to Azure Functions

uses: Azure/functions-action@v1

with:

app-name: az400-38443478-funct

publish-profile: ${{ secrets.AZURE_FUNCTIONAPP_PUBLISH_PROFILE }}

package: .

Replace theapp-namewith the name of your Azure Function App and ensure the Python version and dependencies match your application’s requirements.

By following these steps, yourAzure Function will automatically update whenever new code is pushed to the main branch of the GitHub repository. This setup minimizes manual effort and ensures that your function app is always running the latest code.

Add a slot

1. In the Azure portal, search for and select App Services and select your app az400-11566895-main.

2. In the left pane, select Deployment slots > Add Slot.

3. In the Add a slot dialog box, give the slot a name, and select whether to clone an app configuration from another deployment slot. Select Add to continue.

4. After the slot is added, select Close to close the dialog box. The new slot is now shown on the Deployment slots page.