Master the Microsoft Azure Architect Design (AZ-304) 2025 – Unleash Your Cloud Genius!

Deploying a Traffic Manager profile along with a web app in two Azure regions is the most effective recommendation for ensuring availability during outages. Traffic Manager is designed to manage traffic distribution across multiple regions or endpoints, which significantly enhances redundancy and helps mitigate downtime. When one region potentially experiences an outage or degradation in performance, Traffic Manager can automatically redirect user traffic to the other available region, maintaining service availability.

By using this approach, the architecture not only provides geographic redundancy but also improves user experience by routing them to the nearest region, thereby decreasing latency. This is especially crucial for web applications where responsiveness and uptime are essential to user satisfaction and overall performance.

While using a load balancer with a virtual machine scale set or deploying resources across availability zones can enhance reliability, these options may not provide the same level of geographic diversity and global traffic management that a Traffic Manager can offer. Choosing the right combination of these services ensures that a web application remains accessible regardless of regional outages, making it a superior choice for high availability scenarios.