How to Pass the Microsoft AZ-400 Exam: Comprehensive Microsoft Azure DevOps Solutions Guide and Tips

Step 1: Initialize the Default Main Branch

Navigate to Azure DevOps:

Go to Azure DevOps and sign in with your credentials.

Select Your Project:

Choose Project1 from your list of projects.

Initialize the Main Branch:

Go to Repos > Files.

If the main branch does not exist, you will see an option to initialize it. Click on Initialize and follow the prompts to create the main branch.

Step 2: Implement an Approval Process for the Main Branch

Navigate to Branch Policies:

Go to Repos > Branches.

Find the main branch and click on the … (ellipsis) next to it.

Select Branch policies.

Enable Required Reviewers:

Under Policies, enable Minimum number of reviewers.

Set the minimum number of reviewers to 2 to enforce the four-eyes principle.

Add Required Reviewers:

Add the users who should review the changes. Ensure that at least one approval is required on every iteration.

Enable Reset Code Reviewer Votes:

Enable the Reset code reviewer votes when there are new changes option to ensure that any new changes require re-approval.

Save Changes:

Click on Save changes to apply the policies.

Step 3: Verify the Approval Process

Create a Pull Request:

Make a change in a branch and create a pull request to merge it into the main branch.

Review and Approve:

Ensure that the pull request requires at least two reviewers to approve it before it can be merged.

By following these steps, you will have successfully initialized the main branch and implemented an approval process that adheres to the four-eyes principle, ensuring that every iteration has at least one approval

To configure a virtual machine template in your DevTest Labs environment named az400-38443478-dtl1 with Windows Server 2016 Datacenter that includes the Selenium tool and the Google Chrome browser, follow these steps:

Create a Custom Image with Windows Server 2016 Datacenter:

In the Azure Portal, go to your DevTest Lab az400-38443478-dtl1.

Navigate to Configuration and policies > Custom images.

Use an existing VM or create a new one with Windows Server 2016 Datacenter.

After setting up the VM, capture it to create a custom image1.

Install Selenium and Google Chrome on the VM:

Connect to the VM via RDP.

Download and install the Selenium WebDriver for your preferred programming language from the official Selenium website2.

For Google Chrome, download the offline installer from the official website and install it on the VM3.

Generalize the VM:

Run the sysprep command to generalize the VM, which prepares it to be used as a template.

Shut down the VM after sysprep completes.

Capture the Generalized VM to Create a Template:

In the Azure Portal, navigate to the VM and select Capture.

Provide the required details and create the image.

Add Selenium and Google Chrome Artifacts to the Template:

Go back to the DevTest Lab az400-38443478-dtl1.

Select Artifacts and add Selenium and Google Chrome artifacts to the template.

Ensure these artifacts are configured to install during the VM creation process.

Create VMs from the Template:

Now, when you create a new VM in the DevTest Lab, select the custom image you created.

The VM will be provisioned with Windows Server 2016 Datacenter, and the Selenium tool and Google Chrome browser will be installed automatically.

By following these steps, you can ensure that all virtual machines created from this template in your DevTest Lab will have the required operating system, tools, and browser installed. Remember to replace placeholder names with the actual names of your resources where necessary.

To ensure that your Azure Web App named az400-38443478-main supports rolling upgrades and only 10 percent of users connect to the updated version of the app, you can use deployment slots with the following steps:

Create a Deployment Slot:

Navigate to the Azure Portal.

Go to your Web App az400-38443478-main.

Select Deployment slots in the menu.

Click on Add 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 for Traffic %.

Set the traffic percentage to 10% for the staging slot1.

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

Deploy the Updated App to the Staging Slot:

Deploy your updated application to the staging slot.

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

Complete the Rolling Upgrade:

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

To swap slots, go to the Deployment slots menu and click on Swap with 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.

To configure your Azure Function az400-38443478-funct to 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 the Azure/functions-action to deploy to your Azure Function App.

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

Generate Deployment Credentials:

In the Azure Portal, navigate to your Function App az400-38443478-funct.

Download the publish profile from the Overview section by clicking on Get publish profile.

Store the Publish Profile as a GitHub Secret:

In your GitHub repository, go to Settings > 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 the app-name with the name of your Azure Function App and ensure the Python version and dependencies match your application’s requirements.

By following these steps, your Azure 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.

Step 1: Initialize the Default Main Branch

Navigate to Azure DevOps:

Go to Azure DevOps and sign in with your credentials.

Select Your Project:

Choose Project1 from your list of projects.

Initialize the Main Branch:

Go to Repos > Files.

If the main branch does not exist, you will see an option to initialize it. Click on Initialize and follow the prompts to create the main branch1.

Step 2: Install the Microsoft Security DevOps Extension

Navigate to Extensions:

In Azure DevOps, click on the Shopping Bag icon in the top right corner and select Browse Marketplace.

Search for the Extension:

Search for Microsoft Security DevOps.

Install the Extension:

Click on Get it free.

Select your organization (User1-42147509) and click Install.

Follow the prompts to complete the installation2.

Step 3: Create a New Starter Pipeline

Navigate to Pipelines:

Go to Pipelines > New pipeline.

Select the Repository:

Choose Azure Repos Git and select the relevant repository.

Configure the Pipeline:

Select Starter pipeline and replace the default YAML with the following starter code:

trigger:

- starter

pool:

vmImage: 'windows-latest'

steps:

- task: MicrosoftSecurityDevOps@1

inputs:

command: 'run'

policy: 'azuredevops'

publish: true

Save the Pipeline:

Click on Save and enter starter as the branch name.

Click on Save and run to save the pipeline to the new branch named starter3.

By following these steps, you will have successfully initialized the main branch, installed the Microsoft Security DevOps extension, and created a new starter pipeline named starter1 that includes the specified task

Step 1: Navigate to Personal Access Tokens

Sign in to Azure DevOps:

Go to Azure DevOps and sign in with your credentials.

Access User Settings:

Click on your profile picture in the top right corner.

Select User settings.

Open Personal Access Tokens:

In the user settings menu, select Personal access tokens.

Step 2: Create a New Personal Access Token

Create a New Token:

Click on + New Token.

Configure the Token:

Name: Enter Token1.

Organization: Select the organization where you want to use the token.

Expiration: Set the expiration to 60 days.

Set Scopes:

Code: Select Read, Write, & Manage.

Build: Select Read & Execute.

Release: Select Read.

Create the Token:

Click on Create.

Step 3: Save the Token

Copy the Token:

Once the token is created, copy it immediately as it will not be displayed again.

Store the token in a secure location.

By following these steps, you will have successfully created a personal access token named Token1 with the specified capabilities and a 60-day expiration

To prepare a Network Security Group (NSG) named az400-38443478-nsg1 for hosting an Azure DevOps pipeline agent, while allowing only the required outbound port for Azure DevOps and denying all other inbound and outbound access to the Internet, follow these steps:

Create the NSG:

Navigate to the Azure Portal.

Go to Network Security Groups and click on + Create.

Fill in the details, including the name az400-38443478-nsg1, and create the NSG.

Configure Outbound Security Rules:

Once the NSG is created, go to its settings.

Navigate to Outbound security rules.

Click on + Add to create a new rule.

Set the Destination port ranges to 443, which is the required port for Azure DevOps12.

Set the Protocol to TCP.

Set the Action to Allow.

Assign a Priority number (e.g., 100) that does not conflict with existing rules.

Provide a meaningful Name for the rule (e.g., AllowAzureDevOps).

Configure Default Rules to Deny All Other Traffic:

In the same Outbound security rules section, edit the default rule to deny all traffic.

Change the Action to Deny for the rule with the lowest priority (highest number).

Ensure that this rule applies to all protocols, source and destination IP ranges, and port ranges.

Associate the NSG with the Appropriate Resource:

Associate the NSG with the subnet or network interface of the virtual machine or resource where the Azure DevOps pipeline agent will be hosted.

By following these steps, you will ensure that the Azure DevOps pipeline agent can communicate with Azure DevOps services over the required port while blocking all other inbound and outbound Internet access, adhering to the principle of least privilege and security best practices.

Step 1: Create a Project Wiki

Navigate to Azure DevOps:

Go to Azure DevOps and sign in with 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 can use:

```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

Step 1: Write the KQL Query

Open Azure Data Explorer:

Navigate to Azure Data Explorer and sign in with your credentials.

Access the Securitylogs Database:

Open the Securitylogs database.

Write the Query:

Use the following KQL query to count the number of inbound requests for each source IP address:

InboundBrowsing

| where Timestamp between (datetime(2021-10-01) .. datetime(2021-12-31))

| summarize NumberOfRequests = count() by SourceIP

| project SourceIP, NumberOfRequests

Step 2: Export the Query Results

Run the Query:

Execute the query in Azure Data Explorer.

Export the Results:

Once the query results are displayed, click on the Export button.

Choose the export format (e.g., CSV) and specify the export path as C:\Samples.

By following these steps, you will have successfully written a KQL query to count the number of inbound requests for each source IP address during the last three months of 2021 and exported the results to C:\Samples

Step 1: Sign Up for Azure DevOps

Navigate to Azure DevOps.

Click on Start Free.

Enter the credentials:

Email: UserUsefl-42147509@ExamUsers.com

Password: eWrSalD2!

Follow the prompts to complete the sign-up process using the default settings.

Step 2: Create an Azure DevOps Organization

Once signed in, you will be prompted to create a new organization.

Enter a name for your organization and select your region.

Click on Continue to create the organization.

Step 3: Create a Private Project

In your new organization, click on New Project.

Name the project Project1.

Set the visibility to Private.

Click on Create.

Step 4: Add an External User as a Stakeholder

Go to the Organization Settings.

Under General, select Users.

Click on Add users.

Enter the email address: Usfrr2-42147S09@ExamUsers.com.

Set the access level to Stakeholder.

Add the user to the most restrictive group, which is typically the Readers group.

Click on Add to complete the process.

Step 5: Verify the User Addition

Ensure that the external user has been added successfully by checking the Users list.

Confirm that the user has the Stakeholder access level and is part of the Readers group.

By following these steps, you should be able to complete the task successfully. If you encounter any issues, feel free to ask for further assistance!