Question 1mediummultiple choice
Full question →mediummultiple choiceObjective-mapped
An on-premises application connects to Azure through an existing site-to-site VPN. The application must access an Azure Storage account, public network access on the storage account is disabled, and the company does not want the storage account exposed through a public endpoint. Which solution should the administrator implement?
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
Best answer
Create a private endpoint for the storage account in a VNet reachable over the VPN and configure private DNS.
A private endpoint gives the storage account a private IP in a VNet, and that private address can be reached from on-premises over the existing VPN. Because public network access is disabled, this is the correct design for private-only access. Private DNS ensures the application resolves the storage name to the private IP rather than the public endpoint.
B
Distractor review
Enable a service endpoint on the on-premises network and allow the storage account firewall to trust it.
Service endpoints are tied to Azure subnets, not arbitrary on-premises networks, so they do not solve access from a datacenter over VPN.
C
Distractor review
Generate a shared access signature and use it from the on-premises application.
A SAS controls authorization, but it does not create a private network path or replace the need for network access to the storage account.
D
Distractor review
Associate a NAT gateway with the on-premises VPN connection.
NAT gateway applies to Azure subnets, not to a site-to-site VPN tunnel, and it does not provide private access to PaaS resources.
Common exam trap
Common exam trap: usable hosts are not the same as total addresses
Subnetting questions often tempt you into counting all addresses. In normal IPv4 subnets, the network and broadcast addresses are not usable host addresses.
Technical deep dive
How to think about this question
Subnetting questions test whether you can identify the network, broadcast address, usable range, mask and correct subnet. Slow down enough to calculate the block size correctly.
KKey Concepts to Remember
- CIDR notation defines the prefix length.
- Block size helps identify subnet boundaries.
- Network and broadcast addresses are not usable hosts in normal IPv4 subnets.
- The required host count determines the smallest suitable subnet.
TExam Day Tips
- Write the block size before choosing the subnet.
- Check whether the question asks for hosts, subnets or a specific address range.
- Do not confuse /24, /25, /26 and /27 host counts.
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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
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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?
CIDR notation defines the prefix length.
What is the correct answer to this question?
The correct answer is: Create a private endpoint for the storage account in a VNet reachable over the VPN and configure private DNS. — Because the storage account has public network access disabled, the on-premises application must reach it through a private network path. A private endpoint placed in a VNet reachable over the site-to-site VPN provides a private IP for the storage account and keeps traffic off the public internet. Private DNS is also needed so the storage name resolves to that private IP from the on-premises environment. Why others are wrong: B misunderstands service endpoints; they work from Azure subnets and do not extend to on-premises addresses. C handles authentication only and does not provide network reachability. D is not a VPN feature and cannot secure or route traffic to a private Azure Storage endpoint.
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.
Discussion
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