- A
Enable gateway transit on the hub peering and Use remote gateways on the spoke peering.
This is the correct hub-and-spoke configuration when only the hub should own the VPN gateway. Gateway transit allows the hub to share its gateway with peered VNets, and the spoke must be configured to use the remote gateway. Together, these settings let the spoke route on-premises traffic through the hub gateway without deploying another gateway or duplicating connectivity infrastructure.
- B
Create a service endpoint from the spoke to the hub.
Why wrong: Service endpoints are for PaaS service access, not for routing traffic through a VPN gateway in another VNet.
- C
Add a default route to Internet in the spoke subnet.
Why wrong: Sending traffic to Internet would bypass on-premises connectivity instead of forwarding it to the hub gateway.
- D
Enable accelerated networking on the spoke subnet.
Why wrong: Accelerated networking improves VM NIC performance, but it does not configure shared gateway routing across peered VNets.
Quick Answer
The answer is to enable gateway transit on the hub VNet peering and use remote gateways on the spoke VNet peering. This configuration works because the hub’s peering setting allows its VPN gateway to advertise routes to the spoke, while the spoke’s setting tells it to accept those routes and route traffic through the hub’s gateway instead of deploying its own. On the AZ-104 exam, this scenario tests your understanding of transitive routing across VNet peering—a common trap is assuming peering alone provides transitive connectivity, but you must explicitly configure these two settings to extend on-premises reachability to the spoke. A reliable memory tip is to think of the hub as the “transit authority” (allow gateway transit) and the spoke as the “remote user” (use remote gateways); the spoke never needs its own gateway because it borrows the hub’s.
AZ-104 Implement and Manage Virtual Networking Practice Question
This AZ-104 practice question tests your understanding of implement and manage virtual networking. This is a configuration task: choose the command set that satisfies every stated requirement. Small differences — like 'secret' vs 'password' or 'transport input ssh' vs 'all' — change whether the answer is correct. 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 hub VNet already has a VPN gateway connected to on-premises. A new spoke VNet must reach on-premises through the hub gateway and should not deploy its own gateway. What configuration should be enabled on the peering?
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
Enable gateway transit on the hub peering and Use remote gateways on the spoke peering.
Option A is correct because enabling 'Use remote gateways' on the spoke VNet peering and 'Allow gateway transit' on the hub VNet peering allows the spoke VNet to route traffic to on-premises through the hub's VPN gateway without deploying its own gateway. This configuration leverages BGP routes (if the VPN gateway is route-based) to propagate on-premises prefixes to the spoke, enabling transitive routing across the peering.
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.
- ✓
Enable gateway transit on the hub peering and Use remote gateways on the spoke peering.
Why this is correct
This is the correct hub-and-spoke configuration when only the hub should own the VPN gateway. Gateway transit allows the hub to share its gateway with peered VNets, and the spoke must be configured to use the remote gateway. Together, these settings let the spoke route on-premises traffic through the hub gateway without deploying another gateway or duplicating connectivity infrastructure.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Create a service endpoint from the spoke to the hub.
- ✗
Add a default route to Internet in the spoke subnet.
Why it's wrong here
Sending traffic to Internet would bypass on-premises connectivity instead of forwarding it to the hub gateway.
- ✗
Enable accelerated networking on the spoke subnet.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often confuse 'gateway transit' with simply enabling peering, forgetting that both the hub's 'Allow gateway transit' and the spoke's 'Use remote gateways' must be explicitly set, and that the spoke cannot have its own gateway (otherwise the setting is blocked).
Detailed technical explanation
How to think about this question
Under the hood, 'Allow gateway transit' on the hub peering advertises the hub's VPN gateway routes (including on-premises prefixes learned via BGP) to the spoke VNet's route table. The spoke's 'Use remote gateways' setting then installs those routes as effective routes for the spoke subnets, allowing traffic to flow without a local gateway. In a real-world scenario, this is critical for hub-and-spoke topologies where cost and management overhead are minimized by centralizing VPN connectivity in the hub.
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
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
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: Enable gateway transit on the hub peering and Use remote gateways on the spoke peering. — Option A is correct because enabling 'Use remote gateways' on the spoke VNet peering and 'Allow gateway transit' on the hub VNet peering allows the spoke VNet to route traffic to on-premises through the hub's VPN gateway without deploying its own gateway. This configuration leverages BGP routes (if the VPN gateway is route-based) to propagate on-premises prefixes to the spoke, enabling transitive routing across the peering.
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 →
Same concept, more angles
1 more ways this is tested on AZ-104
These questions test the same concept from different angles. Work through them to make sure you can recognise it however the exam phrases it.
Variation 1. A hub VNet already has a VPN gateway connected to on-premises. A spoke VNet in the same region must reach on-premises networks through that existing gateway, and you do not want to deploy a separate VPN gateway in the spoke. What peering settings should you use?
medium- A.Create peering only; the spoke will automatically use the hub gateway without extra settings.
- B.Enable Use remote gateways on the hub peering and Allow gateway transit on the spoke peering.
- ✓ C.Enable Allow gateway transit on the hub peering and Use remote gateways on the spoke peering.
- D.Create a service endpoint from the spoke VNet to the on-premises network.
Why C: Option C is correct because to enable a spoke VNet to use a hub VNet's VPN gateway for on-premises connectivity without deploying a separate gateway, you must configure the hub peering with 'Allow gateway transit' and the spoke peering with 'Use remote gateways'. This allows the spoke to route traffic through the hub's VPN gateway, leveraging the existing site-to-site VPN connection to on-premises.
Last reviewed: Jun 11, 2026
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