Quick Answer
The answer is Azure VPN Gateway. This service is the correct choice because it establishes an encrypted site-to-site VPN connection over the public internet, allowing your on-premises data center to securely connect to Azure for disaster recovery without requiring a private physical link. For the Microsoft Azure Security Engineer Associate AZ-500 exam, this question tests your understanding of network security controls and connectivity options under the "Secure connectivity" domain. A common trap is confusing Azure VPN Gateway with ExpressRoute, but remember that ExpressRoute bypasses the internet entirely using private circuits, while the question explicitly requires internet-based connectivity. Another trap is selecting Azure Front Door, which is optimized for global web application delivery, not site-to-site encryption. For a quick memory tip, think "VPN over the internet for DR" — if the scenario says "public internet" and "encrypted," your answer is always Azure VPN Gateway.
This AZ-500 practice question tests your understanding of secure networking. 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.
Your organization needs to securely connect an on-premises data center to Azure for disaster recovery. The connection must be encrypted and use the public internet. Which Azure service should you use?
Azure Front Door.
Why wrong: Front Door is a global load balancer.
Azure ExpressRoute with private peering.
Why wrong: ExpressRoute is a private connection, not over the internet.
Azure VPN Gateway.
VPN Gateway provides encrypted site-to-site VPN over the internet.
Azure DNS.
Why wrong: DNS is not a connectivity service.
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 VPN Gateway.
Option D is correct because Azure VPN Gateway supports site-to-site VPN connections over the internet. Option A is wrong because Azure ExpressRoute uses private connections, not the internet. Option B is wrong because Azure Front Door is for web applications. Option C is wrong because Azure DNS is for domain name resolution.
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 Front Door.
Why it's wrong here
Front Door is a global load balancer.
Azure ExpressRoute with private peering.
Why it's wrong here
ExpressRoute is a private connection, not over the internet.
Azure VPN Gateway.
Azure DNS.
Why it's wrong here
DNS is not a connectivity service.
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 cloud solutions architect for a retail company is evaluating services for a new workload. The correct answer here reflects best practice for the specific scenario described — not a general cloud recommendation. Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option. Cloud exam questions reward reading the constraint carefully: the same technology can be right or wrong depending on the use case.
What to study next
Identify which AZ-500 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.
Secure networking — study guide chapter
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FAQ
Secure networking — This question tests Secure networking — Read the scenario before looking for a memorised answer..
The correct answer is: Azure VPN Gateway. — Option D is correct because Azure VPN Gateway supports site-to-site VPN connections over the internet. Option A is wrong because Azure ExpressRoute uses private connections, not the internet. Option B is wrong because Azure Front Door is for web applications. Option C is wrong because Azure DNS is for domain name resolution.
Identify which AZ-500 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.
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Last reviewed: Jun 20, 2026
This AZ-500 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-500 exam.
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