AZ-104 Exam EP 14: Azure Virtual Networks

Introduction

This tutorial provides a step-by-step guide to understanding and implementing Azure Virtual Networks, as covered in the AZ-104 Exam video. Azure Virtual Networks are essential for creating secure, isolated environments for your Azure resources. This guide will help you grasp the key concepts and practical applications needed for effective Azure networking.

Step 1: Understand Azure Networking Components

Before diving into Virtual Networks, familiarize yourself with the core components of Azure networking:

• Virtual Networks (VNets): The fundamental building blocks for your private network in Azure.
• Subnets: Segments within a VNet to organize and secure your resources.
• Network Interfaces (NICs): Connect virtual machines to a VNet.
• Public and Private IP Addresses: Manage communication into and out of the Azure environment.
• Network Security Groups (NSGs): Control inbound and outbound traffic to network interfaces and subnets.

Step 2: Explore Virtual Networks

Learn about the key features and benefits of Azure Virtual Networks:

• Isolation: VNets create isolated environments for your Azure resources.
• Connectivity: VNets enable communication between Azure resources and on-premises networks.
• Scalability: Easily expand your network as your cloud resources grow.
• Security: Utilize NSGs to enforce security rules for your resources.

Step 3: Create Subnets

Subnets are crucial for organizing your network. Here’s how to create them:

1. Determine Subnet Requirements:

   • Assess how many subnets are needed based on resource grouping and security requirements.
   • Plan your IP address ranges to avoid conflicts.

2. Create a Subnet:

   • Navigate to your Azure portal.
   • Select your Virtual Network.
   • Click on "Subnets" and then "Add Subnet".
   • Enter the subnet name and define the address range.

Step 4: Implementing Virtual Networks

Follow these steps to create and configure a Virtual Network:

1. Log in to Azure Portal:

   • Go to the Azure portal (https://portal.azure.com).

2. Create a Virtual Network:

   • Click on "Create a resource", then select "Networking" and choose "Virtual Network".
   • Fill in the required fields such as name, address space, and resource group.
   • Click "Review + Create" and then "Create".

3. Configure Subnets:

   • Once the VNet is created, navigate to the "Subnets" section.
   • Add your predefined subnets as discussed in Step 3.

Step 5: Connect Resources to Virtual Networks

After setting up your Virtual Networks and subnets, connect your resources:

• Create a Virtual Machine:
  • When creating a VM, select the appropriate VNet and subnet from the dropdown menu.
• Assign Network Security Groups:
  • Ensure NSGs are applied to control traffic and enhance security.

Conclusion

This tutorial has guided you through the essential concepts and practical steps for configuring Azure Virtual Networks. By understanding the components and following the implementation steps, you can effectively create a secure and scalable network environment in Azure. As a next step, consider exploring advanced networking features such as VPN gateways or Azure ExpressRoute for hybrid connectivity. For more resources, refer to the additional materials provided in the video description.