Which Azure solution gives you a secure, isolated virtual network environment for your workloads?

Azure Virtual Network (VNet) provides a private, isolated network in the cloud where you can securely run your Azure resources. It allows you to define your own private IP address spaces, create subnets, and configure routing tables and network security groups (NSGs) to control traffic flow. This isolation ensures that your workloads are logically separated from other Azure customers and the public internet, unless you explicitly configure connectivity. Azure Application Gateway is a web traffic load balancer that enables you to manage traffic to your web applications. Azure Bastion provides secure and seamless RDP/SSH connectivity to your virtual machines directly through the Azure portal, without exposing them to the public internet. Azure Front Door is a global, scalable entry-point that uses the Microsoft global edge network to create fast, secure, and widely scalable web applications. While these services enhance security, none of them provide the fundamental isolated network environment that Azure Virtual Network does.