So now let’s talk about what to focus on when studying connectivity solutions for Azure resources.
One key area is the virtual network NAT gateway. You’ll want to understand how it provides outbound-only internet connectivity for your virtual networks. Basically, it’s streamlined, resilient, and a way to manage outbound traffic without the need to pre-allocate public IP addresses.
Next, you’ll want to dive into the design considerations for virtual networks and subnets. That includes planning around naming conventions, regions, subscriptions, segmentation, security, and policies. These are foundational concepts that often show up in scenario-based questions.
Also, get familiar with the different connectivity options like Azure Firewall, Unload Balancer, and, of course, your NAT gateway. Know when each is appropriate. Finally, be clear on when to choose a NAT gateway.
Think about use cases like needing an on-demand outbound access, simplifying outbound connectivity, setting idle timeouts, or handling TCP resets and things like that.
These are key distinctions that you’ll need to know, so remember that along with all the different technologies and the use cases for each one.
https://learn.microsoft.com/en-us/training/modules/host-domain-azure-dns
https://learn.microsoft.com/en-us/azure/dns/delegate-subdomain