See the solution below in explanation.
Explanation:
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

To entirely remove unwanted files from a repository's history you can use either the git filter-branch command or the BFG Repo-Cleaner open source tool.
Reference:
https://docs.github.com/en/github/authenticating-to-github/keeping-your-account-and-data-secure/removing- sensitive-data-from-a-repository

Explanation:

Step1: Create an Azure Automation account.
An Azure Automation account is required.
Step 2: Install the custom Desired State Configuration (DSC) extension on the virtual machines Underthe hood, and without an administrator having to remote into a VM, the Azure VM Desired State Configuration extension registers the VM with Azure Automation State Configuration.
Step 3: Onboard the virtual machines to the Azure Automation account.
Step4: Complete the Desired State Configuration (DSC) configuration.
Create a DSC configuration.
Reference:
https://docs.microsoft.com/en-us/azure/automation/automation-dsc-onboarding