The answer is Azure Traffic Manager, the correct choice because it is a DNS-based traffic load balancer that routes users to the nearest healthy region by evaluating both geographic location and endpoint health. Unlike Azure Load Balancer or Application Gateway, which operate at the network or HTTP layer within a single region, Traffic Manager works at the DNS level to direct traffic globally, automatically failing over to the next healthy region if an endpoint becomes unavailable. On the AZ-305 exam, this question tests your understanding of global traffic routing versus regional load balancing—a common trap is confusing Traffic Manager with Azure Front Door, which also handles global routing but adds application-layer features like SSL termination and web application firewall. To remember the difference, think of Traffic Manager as a DNS-based “GPS for users,” guiding them to the closest open region without inspecting the traffic itself.
AZ-305 Design infrastructure solutions Practice Question
This AZ-305 practice question tests your understanding of design infrastructure solutions. Match the stated requirement to the specific cloud service, access model, or configuration option — many options are valid in isolation but not for this scenario. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
A company deploys a web application in two Azure regions for high availability. They need to automatically direct users to the nearest healthy region based on geographic location and endpoint health. Which Azure service should they use?
Correct. Traffic Manager uses DNS to route traffic to the nearest healthy region, providing simple global load balancing.
B
Azure Load Balancer
Why wrong: Incorrect. Azure Load Balancer operates at Layer 4 within a single region and cannot perform geographic routing.
C
Azure Application Gateway
Why wrong: Incorrect. Application Gateway is a regional Layer 7 load balancer for HTTP/HTTPS traffic. It does not provide multi-region routing.
D
Azure Front Door
Why wrong: Incorrect. Azure Front Door is a global Layer 7 service that includes WAF and SSL offload, but for simple DNS-based routing, Traffic Manager is more appropriate.
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Azure Traffic Manager
Azure Traffic Manager is a DNS-based traffic load balancer that directs users to the nearest healthy region based on geographic location and endpoint health. It uses DNS resolution to route traffic to the closest available endpoint, making it ideal for global high-availability scenarios where users need automatic failover across regions.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
✓
Azure Traffic Manager
Why this is correct
Correct. Traffic Manager uses DNS to route traffic to the nearest healthy region, providing simple global load balancing.
Related concept
Read the scenario before looking for a memorised answer.
✗
Azure Load Balancer
Why it's wrong here
Incorrect. Azure Load Balancer operates at Layer 4 within a single region and cannot perform geographic routing.
✗
Azure Application Gateway
Why it's wrong here
Incorrect. Application Gateway is a regional Layer 7 load balancer for HTTP/HTTPS traffic. It does not provide multi-region routing.
✗
Azure Front Door
Why it's wrong here
Incorrect. Azure Front Door is a global Layer 7 service that includes WAF and SSL offload, but for simple DNS-based routing, Traffic Manager is more appropriate.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often confuse Azure Front Door with Traffic Manager because both can route traffic globally, but Front Door is an application delivery controller with integrated WAF and SSL offload, whereas Traffic Manager is a simpler DNS-based load balancer focused solely on geographic and health-based routing.
Detailed technical explanation
How to think about this question
Azure Traffic Manager uses DNS-based traffic routing methods (e.g., Performance, Geographic, Priority, Weighted) and probes endpoint health via HTTP/HTTPS/TCP health checks. Under the hood, it does not proxy traffic but returns the appropriate DNS response (CNAME or A record) to the client, which then connects directly to the chosen endpoint. A real-world scenario where this matters is a global e-commerce site that needs to route users to the nearest healthy region while minimizing latency and avoiding regional outages.
KKey Concepts to Remember
Read the scenario before looking for a memorised answer.
Find the constraint that changes the correct option.
Eliminate answers that are true in general but not in this case.
TExam Day Tips
→Watch for words such as best, first, most likely and least administrative effort.
→Review why wrong options are wrong, not only why the correct option is correct.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
How this comes up in practice
An e-commerce site experiences heavy traffic on Black Friday and near-zero traffic during off-peak weeks. Rather than provisioning permanent large VMs, the team uses auto-scaling groups that add capacity automatically under load and reduce it overnight. Questions like this test whether you understand elasticity, availability zones, and cloud compute scaling patterns.
Related glossary terms
Concepts from this question explained
These glossary pages explain the core terms tested in this AZ-305 question in full detail.
Design infrastructure solutions — This question tests Design infrastructure solutions — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Azure Traffic Manager — Azure Traffic Manager is a DNS-based traffic load balancer that directs users to the nearest healthy region based on geographic location and endpoint health. It uses DNS resolution to route traffic to the closest available endpoint, making it ideal for global high-availability scenarios where users need automatic failover across regions.
What should I do if I get this AZ-305 question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
About these practice questions
Courseiva creates original exam-style practice questions with explanations and wrong-answer analysis. It does not publish real exam questions, exam dumps, or protected exam content. Learn why practice questions differ from exam dumps →
Share a tip, memory trick, or ask about the reasoning behind this question. Do not post real exam questions, leaked content, braindumps, or copyrighted exam material. Comments are moderated and may be removed without notice.
This AZ-305 practice question is part of Courseiva's free Microsoft certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the AZ-305 exam.
Question Discussion
Share a tip, memory trick, or ask about the reasoning behind this question. Do not post real exam questions, leaked content, braindumps, or copyrighted exam material. Comments are moderated and may be removed without notice.
Sign in to join the discussion.