An application in AppSubnet must access an Azure Storage account over the public endpoint, but only traffic from that subnet should be allowed, and the traffic should stay on the Microsoft backbone. The administrator does not want to create a private IP for the service. Which two actions should be taken? Select two.
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.
Best answer
Enable a service endpoint for Microsoft.Storage on AppSubnet.
A service endpoint extends the subnet identity to the storage service while still using the public endpoint path.
Best answer
Configure the storage account firewall to allow AppSubnet.
Storage firewall rules can restrict access to that subnet once the subnet is allowed through a service endpoint.
Distractor review
Create a private endpoint in AppSubnet.
A private endpoint would create a private IP, which the scenario explicitly says the administrator does not want.
Distractor review
Disable public network access on the storage account.
Disabling public network access would block the public endpoint instead of allowing controlled public-endpoint access.
Distractor review
Assign a public IP address to the storage account.
A public IP cannot be assigned to a storage account; it is a managed platform service, not a VM.
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: Enable a service endpoint for Microsoft.Storage on AppSubnet. — This scenario is the classic service-endpoint pattern. The subnet needs to be recognized by Azure Storage without introducing a private endpoint, so a Microsoft.Storage service endpoint on AppSubnet is required. Then the storage firewall must allow that subnet. Together, those settings keep traffic on the Microsoft backbone while preserving access through the public endpoint, exactly as requested. Why others are wrong: A private endpoint would create a private IP, which the requirement explicitly rejects. Disabling public network access would also block the public endpoint. A storage account cannot receive a public IP assignment like a virtual machine, so that option is not valid.
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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