Microsoft Azure Fundamentals (AZ-900)Describe Azure identity, security, and networkingMedium
A company is migrating its on-premises virtual machines to Azure. They need to ensure that the virtual machines can communicate with each other securely within the same logical network, and that they can be segmented into different subnets for organizational purposes. Which Azure networking component is fundamental for achieving this?
- AAzure Virtual Network (VNet)
- BAzure DNS
- CAzure Public IP Address
- DAzure Load Balancer
Show answer & explanationAnswer & explanation
Correct answer: A. Azure Virtual Network (VNet)
An Azure Virtual Network (VNet) is the fundamental building block for your private network in Azure. It enables many types of Azure resources, such as Azure Virtual Machines, to securely communicate with each other, the internet, and on-premises networks. VNets provide logical isolation and allow for subnetting.
Why the other options are wrong
- B. Azure DNS provides name resolution, which is a service within a VNet, not the VNet itself.
- C. Azure Public IP Addresses are for internet-facing communication, not internal network segmentation.
- D. Azure Load Balancer distributes traffic to VMs, but it does not create the underlying network itself.
Azure Virtual Network (VNet)
A logical isolation of the Azure cloud dedicated to your subscription, enabling resources to securely communicate.
- Fundamental building block for private networks in Azure.
- Enables secure communication between Azure resources.
- Supports subnetting for logical segmentation and security.
Memory trick: VNet is the virtual house for your Azure resources.