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 global e-commerce company runs a web application in multiple Azure regions. They need to distribute incoming HTTPS traffic across regional deployments to provide low latency and high availability. The solution must support SSL offloading, Web Application Firewall (WAF) policies, and content caching to reduce backend load. They also need to route users to the nearest healthy backend region. Which Azure service should they use?
Why wrong: Azure Traffic Manager is a DNS-based routing service at layer 3/4. It does not provide SSL offloading, WAF, or content caching.
B
Azure Front Door
Azure Front Door is a global layer 7 load balancer. It offers SSL offload, WAF, content caching, and intelligent routing to the nearest region, meeting all requirements.
C
Azure Application Gateway
Why wrong: Azure Application Gateway is a regional layer 7 load balancer. It provides SSL offload and WAF but operates within a single region, not globally.
D
Azure Content Delivery Network (CDN)
Why wrong: Azure CDN caches content at edge locations but does not provide SSL offload (offload is origin responsibility) or WAF natively, nor does it route to nearest healthy backend.
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Azure Front Door
Azure Front Door is the correct choice because it is a global, scalable entry point that provides HTTPS traffic distribution across multiple Azure regions with low latency, SSL offloading, WAF policies, and content caching. It uses Anycast-based routing to direct users to the nearest healthy backend region, meeting all the requirements for high availability and performance.
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 it's wrong here
Azure Traffic Manager is a DNS-based routing service at layer 3/4. It does not provide SSL offloading, WAF, or content caching.
✓
Azure Front Door
Why this is correct
Azure Front Door is a global layer 7 load balancer. It offers SSL offload, WAF, content caching, and intelligent routing to the nearest region, meeting all requirements.
Related concept
Read the scenario before looking for a memorised answer.
✗
Azure Application Gateway
Why it's wrong here
Azure Application Gateway is a regional layer 7 load balancer. It provides SSL offload and WAF but operates within a single region, not globally.
✗
Azure Content Delivery Network (CDN)
Why it's wrong here
Azure CDN caches content at edge locations but does not provide SSL offload (offload is origin responsibility) or WAF natively, nor does it route to nearest healthy backend.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often confuse Azure Traffic Manager (DNS-level routing) with Azure Front Door (HTTP/HTTPS-level routing), overlooking the need for SSL offloading, WAF, and content caching, which Traffic Manager cannot provide.
Detailed technical explanation
How to think about this question
Azure Front Door uses Anycast protocol to route traffic to the nearest point of presence (PoP) based on network latency, and it supports HTTP/2 and WebSocket protocols. Under the hood, it integrates with Azure WAF policies at the edge and can cache both static and dynamic content, reducing backend load by serving cached responses directly from the PoP.
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 Front Door — Azure Front Door is the correct choice because it is a global, scalable entry point that provides HTTPS traffic distribution across multiple Azure regions with low latency, SSL offloading, WAF policies, and content caching. It uses Anycast-based routing to direct users to the nearest healthy backend region, meeting all the requirements for high availability and performance.
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.