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

The selection of Azure Front Door Service and Azure Traffic Manager is appropriate for ensuring users connect to the nearest instance of a web app while also effectively handling failed instances.

Azure Front Door Service is designed for global applications and provides features for load balancing, SSL offloading, and application acceleration through its edge nodes. It dynamically routes users to the nearest deployed instance based on routing policies, which helps enhance performance and resilience. In case an instance becomes unavailable, Azure Front Door can automatically redirect traffic to healthy instances, ensuring high availability and minimizing downtime.

Azure Traffic Manager, on the other hand, is a DNS-based load balancer that can direct user traffic to various endpoints globally based on various routing methods such as performance, priority, or geographic location. It can also monitor the health of the application endpoints and avoid sending traffic to those instances that are not responding.

Together, these services ensure that user connections are optimized for performance by routing them to the nearest and healthiest instance, thus creating a robust and resilient web application architecture.