After installing the Palo Alto Networks NGFW, which virtual machine in Microsoft Azure will have a public IP address?

The correct answer is C, as the Palo Alto Networks Next-Generation Firewall (NGFW) virtual machine is designed to be positioned at the perimeter of the network within Microsoft Azure, effectively managing and securing traffic entering and leaving the cloud environment. When you've installed the NGFW VM, it will typically be configured to have a public IP address to allow it to interface with external networks, including the internet. This public IP address enables the NGFW to perform its function of monitoring, filtering, and regulating incoming and outgoing traffic effectively.

In contrast, other options may suggest that either none or other VMs receive a public IP. While the web server VM might need a public IP for direct access from the internet, it is the NGFW VM that must have one to fulfill its security role. In a proper deployment scenario, the web server would be placed behind the NGFW, typically not requiring a public IP directly but accessing the internet through the firewall. Therefore, only the NGFW will be assigned a public IP address in this arrangement.