Question 1mediummultiple choice
Full question →mediummultiple choiceObjective-mapped
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?
Answer choices
Why each option matters
Good practice is not just finding the correct option. The wrong answers often show the exact trap the exam wants you to fall into.
A
Distractor review
Create a service endpoint from the spoke VNet to the on-premises network.
Service endpoints are for Azure PaaS services, not for routing to an on-premises network through a VPN gateway.
B
Distractor review
Create peering only; the spoke will automatically use the hub gateway without extra settings.
Azure does not automatically let a spoke use the hub gateway. You must explicitly configure the peering permissions on both sides.
C
Distractor review
Enable Use remote gateways on the hub peering and Allow gateway transit on the spoke peering.
These settings are reversed. The hub side must advertise gateway transit, and the spoke side must be allowed to use the remote gateway.
D
Best answer
Enable Allow gateway transit on the hub peering and Use remote gateways on the spoke peering.
In a hub-spoke design, the hub VNet that owns the VPN gateway must allow gateway transit, and the spoke must be configured to use the remote gateway. This lets the spoke route on-premises traffic through the hub without deploying its own gateway. The direction of these settings matters, and reversing them breaks the design.
Common exam trap
Common exam trap: NAT rules depend on direction and matching traffic
NAT is not only about the public address. The inside/outside interface roles and the ACL or rule that matches traffic are just as important.
Technical deep dive
How to think about this question
NAT questions usually test address translation, overload/PAT behaviour, static mappings and whether the right traffic is being translated. Read the interface direction and address terms carefully.
KKey Concepts to Remember
- Static NAT maps one inside address to one outside address.
- PAT allows many inside hosts to share one public address using ports.
- Inside local and inside global describe the private and translated addresses.
- NAT ACLs identify traffic for translation, not always security filtering.
TExam Day Tips
- Identify inside and outside interfaces first.
- Check whether the scenario needs static NAT, dynamic NAT or PAT.
- Do not confuse NAT matching ACLs with normal packet-filtering intent.
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More questions from this exam
Keep practising from the same exam bank, or move into a focused topic page if this question exposed a weak area.
Question 1
A route table contains these entries: 10.0.0.0/8 with next hop Virtual appliance, and 10.1.1.0/24 with next hop Virtual network gateway. Which next hop will Azure use for traffic to 10.1.1.5?
Question 2
You are deploying a stateless web application on Azure virtual machines. The solution must automatically add and remove instances based on CPU demand and allow all instances to be managed as one logical group. Which Azure compute feature should you deploy?
Question 3
You are deploying a Windows Server VM for an internal app. The VM must support Secure Boot and vTPM later, its OS disk must survive host moves, and the team wants the lowest-cost managed disk tier that still behaves like a normal writable OS disk. Which two choices should you make? Select two.
Question 4
You need to deploy several identical virtual machines and ensure that the failure of a single Azure host does not affect all of them. Which feature should you use?
Question 5
You need to connect VNet-Hub and VNet-Spoke so that resources in both virtual networks can communicate privately over the Microsoft backbone. Both virtual networks are in the same region. What should you configure?
Question 6
You need to create a storage account that provides the lowest-cost redundant storage for non-critical data and only needs protection against local disk or server failure within a single datacenter. Which redundancy option should you choose?
FAQ
Questions learners often ask
What does this AZ-104 question test?
Static NAT maps one inside address to one outside address.
What is the correct answer to this question?
The correct answer is: Enable Allow gateway transit on the hub peering and Use remote gateways on the spoke peering. — For a hub-spoke topology, the VNet that owns the VPN gateway must allow gateway transit, and the spoke VNet must be configured to use remote gateways. This combination lets the spoke forward on-premises traffic through the hub gateway instead of deploying another gateway. The settings are directional, so getting them backwards prevents the spoke from learning the gateway path. Why others are wrong: Plain peering does not grant gateway access by itself. The hub and spoke settings are not interchangeable; the hub advertises transit, and the spoke consumes it. Service endpoints are unrelated because they only optimize access to supported Azure services, not on-premises routing.
What should I do if I get this AZ-104 question wrong?
Then try more questions from the same exam bank and focus on understanding why the wrong options are tempting.
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