Subnets within a VNet in Azure - Mini Project: Build & Apply

Subnets within a VNet

📖 Scenario: You are setting up a simple network in Microsoft Azure. You want to create a Virtual Network (VNet) and divide it into smaller parts called subnets. This helps organize and secure your cloud resources.

🎯 Goal: Create an Azure Virtual Network named myVNet with the address space 10.0.0.0/16. Then create two subnets inside this VNet: subnetA with address prefix 10.0.1.0/24 and subnetB with address prefix 10.0.2.0/24.

📋 What You'll Learn

Create a Virtual Network resource named myVNet with address space 10.0.0.0/16.

Create a subnet named subnetA with address prefix 10.0.1.0/24 inside myVNet.

Create a subnet named subnetB with address prefix 10.0.2.0/24 inside myVNet.

💡 Why This Matters

🌍 Real World

Organizing cloud resources into subnets helps manage security and traffic flow in real Azure environments.

💼 Career

Understanding how to configure VNets and subnets is essential for cloud engineers and network administrators working with Azure.

1

Create the Virtual Network

Create an Azure Virtual Network resource named myVNet with the address space 10.0.0.0/16. Use the addressSpace property to set the address range.

Azure

# Define the Virtual Network resource
# Your code here

Need a hint?

Use the addressSpace property inside properties to set the VNet's address range.

2

Add the first subnet

Add a subnet named subnetA with address prefix 10.0.1.0/24 inside the subnets list of myVNet. Add it as an object with name and properties.addressPrefix.

Azure

{
  "type": "Microsoft.Network/virtualNetworks",
  "apiVersion": "2021-05-01",
  "name": "myVNet",
  "location": "eastus",
  "properties": {
    "addressSpace": {
      "addressPrefixes": [
        "10.0.0.0/16"
      ]
    },
    "subnets": [
      {
        "name": "subnetA",
        "properties": {
          "addressPrefix": "10.0.1.0/24"
        }
      }
    ]
  }
}
# Your code here

Need a hint?

Add the subnet object inside the subnets array with the correct name and addressPrefix.

3

Add the second subnet

Add a second subnet named subnetB with address prefix 10.0.2.0/24 to the subnets list in myVNet. It should be a separate object alongside subnetA.

Azure

{
  "type": "Microsoft.Network/virtualNetworks",
  "apiVersion": "2021-05-01",
  "name": "myVNet",
  "location": "eastus",
  "properties": {
    "addressSpace": {
      "addressPrefixes": [
        "10.0.0.0/16"
      ]
    },
    "subnets": [
      {
        "name": "subnetA",
        "properties": {
          "addressPrefix": "10.0.1.0/24"
        }
      },
      {
        "name": "subnetB",
        "properties": {
          "addressPrefix": "10.0.2.0/24"
        }
      }
    ]
  }
}
# Your code here

Need a hint?

Add the second subnet object inside the subnets array after subnetA.

4

Complete the VNet configuration

Ensure the full Azure Virtual Network JSON includes myVNet with address space 10.0.0.0/16 and both subnets subnetA and subnetB with their correct address prefixes. This is the final complete configuration.

Azure

{
  "type": "Microsoft.Network/virtualNetworks",
  "apiVersion": "2021-05-01",
  "name": "myVNet",
  "location": "eastus",
  "properties": {
    "addressSpace": {
      "addressPrefixes": [
        "10.0.0.0/16"
      ]
    },
    "subnets": [
      {
        "name": "subnetA",
        "properties": {
          "addressPrefix": "10.0.1.0/24"
        }
      },
      {
        "name": "subnetB",
        "properties": {
          "addressPrefix": "10.0.2.0/24"
        }
      }
    ]
  }
}
# Your code here

Need a hint?

Review the full JSON to confirm all parts are included and correctly named.