ExpertHard1 markMultiple Choice
AZ-305 · Question 35 · Domain 3.2: High Availability
You are designing a global routing architecture for a multi-region application.
The application consists of a frontend web app (HTTP/HTTPS) and a backend UDP-based gaming server. You need to route users to the closest region for both the web app and the gaming server. If a region fails, traffic must automatically fail over to the next closest region.
Which load balancing solution should you recommend?
You are designing a global routing architecture for a multi-region application.
The application consists of a frontend web app (HTTP/HTTPS) and a backend UDP-based gaming server. You need to route users to the closest region for both the web app and the gaming server. If a region fails, traffic must automatically fail over to the next closest region.
Which load balancing solution should you recommend?
Answer options:
A.
Azure Front Door
B.
Azure Traffic Manager
C.
Azure Application Gateway
D.
Azure Load Balancer (Standard)
How to approach this question
Identify the protocol requirements. HTTP + UDP means you cannot use a Layer 7 proxy like Front Door. You must use a DNS-based router.
Full Answer
B.Azure Traffic Manager✓ Correct
Azure Traffic Manager is a DNS-based traffic load balancer. Because it simply returns the IP address of the closest endpoint via DNS resolution, it supports any protocol, including HTTP/HTTPS for the web app and UDP for the gaming server. Azure Front Door is a Layer 7 global proxy that only supports HTTP and HTTPS, so it would fail to route the UDP traffic.
Common mistakes
Choosing Azure Front Door because it is the modern global load balancer. However, Front Door strictly drops non-HTTP/S traffic.
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