Question 1mediummultiple choice
Full question →mediummultiple choiceObjective-mapped
A company has a hub VNet and two peered spoke VNets, AppSpoke and DataSpoke. Both spokes can reach on-premises networks through the hub gateway. The app VM in AppSpoke must connect privately to the data VM in DataSpoke without using the internet or sending traffic on-premises first. What should the administrator do?
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
Add an NSG rule that allows traffic from AppSpoke to DataSpoke.
NSGs can permit or deny traffic, but they do not create a network path between VNets.
B
Distractor review
Enable gateway transit on both spoke peerings.
Gateway transit lets a spoke use the hub gateway, but it does not make spoke-to-spoke traffic transitive.
C
Best answer
Create a direct VNet peering between AppSpoke and DataSpoke.
Azure VNet peering is not transitive. If two spoke VNets must communicate directly, they need a direct peering between them or another routing design such as an appliance. Because the requirement is simply private connectivity between the app and data VNets, direct peering is the simplest and correct fix. The existing hub peering does not provide that spoke-to-spoke path.
D
Distractor review
Add a user-defined route in AppSpoke pointing DataSpoke traffic to the hub gateway.
A UDR can change next-hop routing, but it still cannot make peering transitive across the hub gateway.
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: Create a direct VNet peering between AppSpoke and DataSpoke. — Azure VNet peering is nontransitive, which means AppSpoke cannot automatically reach DataSpoke just because both are peered to the hub. The cleanest solution is to peer AppSpoke directly with DataSpoke so traffic stays on the Microsoft backbone and remains private. That gives the two spokes a direct path without hairpinning through on-premises networks or the internet. Why others are wrong: An NSG rule can only filter flows after a path exists; it cannot create inter-VNet connectivity. Gateway transit is for sharing a gateway with a spoke, typically for on-prem connectivity, not for making spokes talk to each other. A UDR can steer traffic, but if there is no direct transitive path, routing to the hub gateway still will not solve spoke-to-spoke communication.
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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