Microsoft Azure Architect Technologies (AZ-300) Practice Exam

Which Azure service can be used to secure VPN connections to Azure?

1. Azure Bastion

2. Azure Firewall

3. Network Security Group

4. Azure Traffic Manager

The correct answer is: Azure Firewall

Azure Firewall is a managed, cloud-based network security service that provides robust security for Azure virtual networks. It can be utilized to secure VPN connections to Azure by controlling traffic and enforcing security rules. This service allows you to create and enforce rules that govern how virtual machines and services within the Azure environment communicate with each other, as well as with the outside world. It provides features such as threat intelligence, FQDN filtering, and application rules, which contribute to a more secure VPN deployment. By integrating Azure Firewall with your VPN connections, you can effectively guide the flow of information, ensuring that only legitimate and safe traffic is permitted. This capability becomes increasingly important as cloud environments scale and require a higher level of governance and control around data exchange. In contrast, Azure Bastion primarily facilitates secure RDP and SSH connectivity to your virtual machines directly from the Azure portal, but it does not focus on securing VPN connections specifically. Network Security Groups are used to set up rules at the network interface, subnet, or VM level within Azure but are not comprehensive enough to provide full-scale security like Azure Firewall. Azure Traffic Manager is utilized for routing incoming traffic globally and does not apply to securing connections, particularly in the context of VPNs.