AZ-400 Microsoft Exam Lab Questions

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: 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: Enable Squash Merge 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 Squash Merge:

Under Policies, scroll down to the Merge strategy section.

Select Squash merge as the required merge strategy2.

Save Changes:

Click on Save changes to apply the policies.

Step 3: Verify the Squash Merge Policy

Create a Pull Request:

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

Complete the Pull Request:

Ensure that the pull request uses the squash merge strategy by selecting Squash commit under the Merge type in the Complete pull request dialog

Step 1: Navigate to the Library

Navigate to Azure DevOps:

Go to Azure DevOps and sign in with your credentials.

Select Your Project:

Choose Project1 from your list of projects.

Access the Library:

In the left-hand menu, select Pipelines > Library.

Step 2: Create a Variable Group

Create a New Variable Group:

On the Library page, click on + Variable group.

Configure the Variable Group:

Name: Enter varGroup1.

Description: Optionally, add a description for the variable group.

Add Variables:

Click on + Add to add a new variable.

Variable Name: Enter serverName.

Value: Enter server1.

Click OK.

Click on + Add again to add another variable.

Variable Name: Enter dbName.

Value: Enter db1.

Click OK.

Save the Variable Group:

Click on Save to save the variable group.

By following these steps, you will have successfully created a variable group named varGroup1 containing the specified variables