Microsoft Azure Fundamentals (AZ-900)Describe Azure identity, security, and networkingHard
A global company has multiple Azure regions deployed and needs to ensure that users access the closest available endpoint for their applications to minimize latency. If an endpoint becomes unavailable, traffic should automatically be redirected to the next available healthy endpoint. Which Azure networking service provides this global traffic distribution and failover capability?
- AAzure Traffic Manager
- BAzure Virtual Network Gateway
- CAzure Application Gateway
- DAzure Load Balancer
Show answer & explanationAnswer & explanation
Correct answer: A. Azure Traffic Manager
Azure Traffic Manager is a DNS-based traffic load balancer that allows you to distribute user traffic to service endpoints in different Azure regions or external endpoints. It uses various routing methods (e.g., performance, priority) and provides automatic failover based on endpoint health checks.
Why the other options are wrong
- B. Azure Virtual Network Gateway connects Azure VNets to on-premises networks or other VNets, not for global application traffic distribution.
- C. Azure Application Gateway operates at Layer 7 and distributes traffic within a single region, not globally.
- D. Azure Load Balancer operates at Layer 4 and distributes traffic within a single region, not globally.
Azure Traffic Manager
A DNS-based traffic load balancer that distributes user traffic globally to service endpoints.
- Routes users to the closest or healthiest endpoint.
- Provides automatic failover for high availability.
- Supports various routing methods (e.g., Performance, Priority, Geographic).
Memory trick: Traffic Manager is the 'global air traffic controller' for 'user requests'.