- A
Enable forwarded traffic on both peerings and create a route table in the spoke.
Why wrong: Forwarded traffic is useful in some hub-and-spoke designs, but it does not by itself allow the spoke to use the hub's VPN gateway for on-premises connectivity.
- B
Enable gateway transit on the hub peering and use remote gateways on the spoke peering.
This is the standard configuration for letting a spoke VNet use an existing hub VPN gateway. The hub side must allow gateway transit, and the spoke side must be configured to use the remote gateway. Together, these settings let the spoke inherit on-premises connectivity through the hub without deploying a separate gateway.
- C
Deploy a private endpoint in the spoke for each on-premises subnet.
Why wrong: Private endpoints are for reaching supported Azure PaaS services privately. They do not provide general connectivity to on-premises networks or replace a VPN gateway.
- D
Create a service endpoint on the spoke subnet for Microsoft.Network.
Why wrong: Service endpoints do not route spoke traffic to on-premises networks through a VPN gateway. They only optimize and secure access to certain Azure services.
Quick Answer
The correct answer is to enable gateway transit on the hub peering and use remote gateways on the spoke peering. This configuration allows the spoke VNet to reach on-premises resources through the hub’s existing VPN gateway without deploying a separate gateway, because gateway transit on the hub advertises routes from its VPN gateway to the spoke, while the remote gateways setting on the spoke peering directs outbound traffic through the hub’s tunnel. On the AZ-104 exam, this scenario tests your understanding of hub spoke VNet peering with gateway transit, a common architecture for centralized connectivity that often appears in questions about hybrid networking and cost optimization. A frequent trap is confusing the two settings: remember that the hub “gives” transit, and the spoke “uses” remote gateways. For a quick memory tip, think “Hub gives, Spoke takes” — the hub enables transit, the spoke consumes it.
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 has a VPN gateway connected to on-premises networks. A new spoke VNet must reach on-premises resources through the existing hub gateway without deploying another gateway. What peering configuration should the administrator use?
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 B is correct because it enables the hub VNet's VPN gateway to be shared with the spoke VNet without deploying a separate gateway. 'Gateway transit' on the hub peering allows the hub to advertise routes from its VPN gateway to the spoke, while 'Use remote gateways' on the spoke peering allows the spoke to use the hub's gateway for outbound traffic to on-premises. This configuration ensures the spoke can reach on-premises resources through the hub's VPN tunnel.
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 forwarded traffic on both peerings and create a route table in the spoke.
- ✓
Enable gateway transit on the hub peering and use remote gateways on the spoke peering.
Why this is correct
This is the standard configuration for letting a spoke VNet use an existing hub VPN gateway. The hub side must allow gateway transit, and the spoke side must be configured to use the remote gateway. Together, these settings let the spoke inherit on-premises connectivity through the hub without deploying a separate gateway.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Deploy a private endpoint in the spoke for each on-premises subnet.
- ✗
Create a service endpoint on the spoke subnet for Microsoft.Network.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often confuse 'forwarded traffic' with 'gateway transit' — forwarded traffic only allows traffic to pass through a VNet (e.g., from a network virtual appliance), but it does not enable the use of a VPN gateway in the peered VNet, which requires the specific gateway transit setting.
Detailed technical explanation
How to think about this question
Under the hood, VNet peering with gateway transit leverages BGP (Border Gateway Protocol) routes from the hub's VPN gateway, which are propagated to the spoke's route table when 'Use remote gateways' is enabled. The spoke's traffic to on-premises is routed via the hub's gateway, and the hub's gateway must have 'Gateway transit' enabled to accept and forward spoke traffic. A real-world scenario is a multi-region hub-and-spoke topology where spokes in different regions share a single ExpressRoute or VPN gateway in the hub, reducing costs and management overhead.
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.
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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 B is correct because it enables the hub VNet's VPN gateway to be shared with the spoke VNet without deploying a separate gateway. 'Gateway transit' on the hub peering allows the hub to advertise routes from its VPN gateway to the spoke, while 'Use remote gateways' on the spoke peering allows the spoke to use the hub's gateway for outbound traffic to on-premises. This configuration ensures the spoke can reach on-premises resources through the hub's VPN tunnel.
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
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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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