- A
A Basic SKU public IP with dynamic allocation.
Why wrong: Basic dynamic public IP settings are not supported for Azure VPN gateways.
- B
A Basic SKU public IP with static allocation.
Why wrong: A Basic static public IP still does not satisfy the gateway's required SKU for deployment.
- C
A Standard SKU public IP with static allocation.
Azure VPN gateways require a Standard public IP configuration, and the address must be statically allocated. This is part of the gateway's external-facing connectivity requirement and is validated during deployment. If a Basic or dynamically assigned public IP is selected, gateway creation can fail even when GatewaySubnet already exists and is sized correctly.
- D
A private IP address assigned directly from GatewaySubnet.
Why wrong: VPN gateways are Internet-facing and need a public IP resource; a private-only address is not sufficient.
Quick Answer
The correct answer is a Standard SKU public IP with static allocation. This is required because Azure route-based VPN gateways demand a static public IP address to maintain consistent routing and session persistence, and the Standard SKU is the only tier that supports the necessary features like zone redundancy and resiliency for production workloads. On the AZ-104 exam, this question tests your understanding of gateway SKU compatibility, often presenting a trap where a Basic SKU public IP or a dynamic allocation is chosen instead. Remember, route-based gateways are always paired with Standard SKU static IPs, while policy-based gateways may use Basic SKU. A quick memory tip: think “Route = Robust = Standard Static” to avoid the common pitfall of selecting Basic or dynamic.
AZ-104 Implement and Manage Virtual Networking Practice Question
This AZ-104 practice question tests your understanding of implement and manage virtual networking. The scenario asks you to isolate a root cause — eliminate options that address a different problem before choosing. 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.
An administrator is deploying a route-based site-to-site VPN gateway. The GatewaySubnet already exists, but validation fails because the public IP configuration is incompatible with the chosen gateway. Which public IP setup is required for the gateway?
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
A Standard SKU public IP with static allocation.
For a route-based site-to-site VPN gateway in Azure, the gateway must use a Standard SKU public IP address with static allocation. This is because route-based VPN gateways require the public IP to be statically assigned and the Standard SKU provides the necessary features like availability zones and zone resiliency, which are not supported by the Basic SKU. The Basic SKU public IP is incompatible with route-based VPN gateways, and a private IP from the GatewaySubnet cannot serve as the public endpoint for the VPN connection.
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.
- ✗
A Basic SKU public IP with dynamic allocation.
Why it's wrong here
Basic dynamic public IP settings are not supported for Azure VPN gateways.
- ✗
A Basic SKU public IP with static allocation.
Why it's wrong here
A Basic static public IP still does not satisfy the gateway's required SKU for deployment.
- ✓
A Standard SKU public IP with static allocation.
Why this is correct
Azure VPN gateways require a Standard public IP configuration, and the address must be statically allocated. This is part of the gateway's external-facing connectivity requirement and is validated during deployment. If a Basic or dynamically assigned public IP is selected, gateway creation can fail even when GatewaySubnet already exists and is sized correctly.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
A private IP address assigned directly from GatewaySubnet.
Why it's wrong here
VPN gateways are Internet-facing and need a public IP resource; a private-only address is not sufficient.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often assume any static public IP will work, overlooking the SKU requirement—Azure specifically mandates Standard SKU for route-based VPN gateways, and Basic SKU is only valid for policy-based gateways or other services like basic load balancers.
Detailed technical explanation
How to think about this question
Under the hood, Azure VPN gateways use a public IP address as the endpoint for IPsec tunnels. For route-based (IKEv2) gateways, the Standard SKU public IP enables zone-redundant configurations and supports active-active mode, which uses two public IPs for high availability. The Basic SKU public IP does not support these features and is only compatible with policy-based VPN gateways, which are legacy and less common in modern deployments.
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.
What to study next
Got this wrong? Here's your next step.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
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Implement and Manage Virtual Networking — study guide chapter
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FAQ
Questions learners often ask
What does this AZ-104 question test?
Implement and Manage Virtual Networking — This question tests Implement and Manage Virtual Networking — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: A Standard SKU public IP with static allocation. — For a route-based site-to-site VPN gateway in Azure, the gateway must use a Standard SKU public IP address with static allocation. This is because route-based VPN gateways require the public IP to be statically assigned and the Standard SKU provides the necessary features like availability zones and zone resiliency, which are not supported by the Basic SKU. The Basic SKU public IP is incompatible with route-based VPN gateways, and a private IP from the GatewaySubnet cannot serve as the public endpoint for the VPN connection.
What should I do if I get this AZ-104 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 →
Last reviewed: Jun 11, 2026
This AZ-104 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-104 exam.
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