Quick Answer
The answer is Azure API Management. This service is specifically designed to expose on-premises APIs securely to external partners by acting as a managed gateway that can connect to your internal backends through a VPN or Azure ExpressRoute, eliminating the need to open firewall ports. On the AZ-204 exam, this question tests your understanding of how Azure API Management serves as a secure facade for legacy or internal systems, often contrasting it with Azure Front Door, which focuses on global load balancing and CDN, or Application Gateway, a regional load balancer with WAF. A common trap is confusing API Management’s API exposure capabilities with Traffic Manager’s DNS-based routing, which has no API gateway features. Remember the mnemonic “API for APIs” — when the task is to securely publish and manage APIs from on-premises, Azure API Management is the dedicated tool.
This AZ-204 practice question tests your understanding of connect to and consume azure services and third-party services. 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.
You need to expose an on-premises API securely to external partners without opening firewall ports. Which Azure service should you use?
Azure Traffic Manager
Why wrong: DNS-based load balancer.
Azure API Management
Exposes APIs securely, can route to on-prem.
Azure Application Gateway
Why wrong: Regional load balancer with WAF.
Azure Front Door
Why wrong: Global load balancer, not API gateway.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
Azure API Management
Option D is correct because Azure API Management can expose APIs securely and integrate with on-premises backends via VPN or ExpressRoute. Option A is wrong because Azure Front Door is for global load balancing and CDN, not for exposing on-premises APIs. Option B is wrong because Azure Application Gateway is a regional load balancer with WAF, but not designed for API exposure. Option C is wrong because Azure Traffic Manager is DNS-based load balancing.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
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
DNS-based load balancer.
Azure API Management
Why this is correct
Exposes APIs securely, can route to on-prem.
Related concept
Read the scenario before looking for a memorised answer.
Azure Application Gateway
Why it's wrong here
Regional load balancer with WAF.
Azure Front Door
Why it's wrong here
Global load balancer, not API gateway.
Common exam traps
Many certification questions include familiar terms but test a specific constraint. Read the exact wording before choosing an answer that is generally true but wrong for this case.
Detailed technical explanation
This question should be treated as a scenario, not a definition check. Identify the problem, the constraint and the best action. Then compare each option against those facts.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
A healthcare organisation deploys an application with a public-facing web tier and a private database tier. The database subnet has no public IP and only accepts connections from the web tier's security group. Questions like this test whether you can design cloud network isolation using VNets/VPCs, subnets, and security group rules.
What to study next
Identify which AZ-204 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
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FAQ
Connect to and consume Azure services and third-party services — This question tests Connect to and consume Azure services and third-party services — Read the scenario before looking for a memorised answer..
The correct answer is: Azure API Management — Option D is correct because Azure API Management can expose APIs securely and integrate with on-premises backends via VPN or ExpressRoute. Option A is wrong because Azure Front Door is for global load balancing and CDN, not for exposing on-premises APIs. Option B is wrong because Azure Application Gateway is a regional load balancer with WAF, but not designed for API exposure. Option C is wrong because Azure Traffic Manager is DNS-based load balancing.
Identify which AZ-204 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
Read the scenario before looking for a memorised answer.
About these practice questions
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Last reviewed: Jun 20, 2026
This AZ-204 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-204 exam.
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