Question 1mediummultiple choice
Full question →mediummultiple choiceObjective-mapped
An on-premises datacenter must reach private IP addresses in Azure over an encrypted site-to-site tunnel. The Azure VMs must not have public IP addresses, and the connection should use the company's existing edge device. Which Azure component should be deployed?
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
Azure Bastion
Bastion supports browser-based admin access, not site-to-site network tunnels from on-premises.
B
Best answer
Azure VPN Gateway
VPN Gateway terminates the encrypted site-to-site tunnel and enables private connectivity from on-premises to Azure VNets. It works with the on-premises edge device and allows access to Azure private IPs without assigning public IPs to the target VMs.
C
Distractor review
Azure Route Server
Route Server exchanges routing information but does not itself create the encrypted tunnel.
D
Distractor review
A network security group with inbound allow rules
An NSG controls traffic filtering, but it cannot establish encrypted hybrid connectivity.
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: Azure VPN Gateway — A site-to-site VPN requires a VPN gateway in Azure to terminate the encrypted tunnel from the on-premises edge device. This gives the datacenter private connectivity to Azure resources without exposing the VMs to the internet. The gateway handles the tunnel and route exchange; the VMs themselves can remain private-only with no public IP addresses assigned. Why others are wrong: Bastion is for browser-based VM administration, not hybrid network connectivity. Route Server helps with routing information exchange but does not create the tunnel. An NSG only filters traffic after it reaches Azure; it cannot establish the encrypted path that connects the datacenter to the VNet. The gateway is the core connectivity component here.
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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