AZ-104 Implement and Manage Storage Practice Question
This AZ-104 practice question tests your understanding of implement and manage storage. This is a configuration task: choose the command set that satisfies every stated requirement. Small differences — like 'secret' vs 'password' or 'transport input ssh' vs 'all' — change whether the answer is correct. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
Exhibit
Storage account network settings:
Public network access: Enabled from selected virtual networks
Firewall status: No virtual network rules configured
AppSubnet settings:
Service endpoint for Microsoft.Storage: Not enabled
Private endpoint: Not configured
Requirement: Restrict access to AppSubnet only, without changing DNS.
Based on the exhibit, the security team wants AppSubnet to access an Azure Storage account through the public endpoint, but only that subnet should be allowed. They do not want a private IP or DNS changes. What should the administrator configure?
Storage account network settings:
Public network access: Enabled from selected virtual networks
Firewall status: No virtual network rules configured
AppSubnet settings:
Service endpoint for Microsoft.Storage: Not enabled
Private endpoint: Not configured
Requirement: Restrict access to AppSubnet only, without changing DNS.
A
Enable the Microsoft.Storage service endpoint on AppSubnet and add AppSubnet as a network rule on the storage account.
This keeps the storage account on its public endpoint while restricting access to the selected subnet. Service endpoints identify the traffic as coming from the approved VNet, and the storage firewall rule then allows only AppSubnet. Because no private IP or DNS change is needed, this is the best fit for the requirement.
B
Create a private endpoint for the storage account and disable public access.
Why wrong: A private endpoint changes the connectivity model by introducing a private IP and usually requires DNS updates. That directly conflicts with the requirement to avoid private IPs and DNS changes.
C
Attach a route table that sends storage traffic to the internet.
Why wrong: Routing traffic to the internet does not restrict the storage account to one subnet. It also does not configure the storage firewall to trust AppSubnet.
D
Grant the subnet a Reader role assignment on the storage account.
Why wrong: RBAC does not control network reachability to the public endpoint. Reader access only permits resource viewing and does not allow or deny storage traffic from a subnet.
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Enable the Microsoft.Storage service endpoint on AppSubnet and add AppSubnet as a network rule on the storage account.
Option A is correct because enabling the Microsoft.Storage service endpoint on AppSubnet allows traffic from that subnet to reach the storage account over the Azure backbone network using the public endpoint, without requiring a private IP or DNS changes. Adding AppSubnet as a network rule on the storage account restricts access exclusively to that subnet, fulfilling the security team's requirement.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
✓
Enable the Microsoft.Storage service endpoint on AppSubnet and add AppSubnet as a network rule on the storage account.
Why this is correct
This keeps the storage account on its public endpoint while restricting access to the selected subnet. Service endpoints identify the traffic as coming from the approved VNet, and the storage firewall rule then allows only AppSubnet. Because no private IP or DNS change is needed, this is the best fit for the requirement.
Related concept
Read the scenario before looking for a memorised answer.
✗
Create a private endpoint for the storage account and disable public access.
Why it's wrong here
A private endpoint changes the connectivity model by introducing a private IP and usually requires DNS updates. That directly conflicts with the requirement to avoid private IPs and DNS changes.
✗
Attach a route table that sends storage traffic to the internet.
Why it's wrong here
Routing traffic to the internet does not restrict the storage account to one subnet. It also does not configure the storage firewall to trust AppSubnet.
✗
Grant the subnet a Reader role assignment on the storage account.
Why it's wrong here
RBAC does not control network reachability to the public endpoint. Reader access only permits resource viewing and does not allow or deny storage traffic from a subnet.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often confuse service endpoints (which use public endpoints with subnet-level restriction) with private endpoints (which use private IPs and DNS changes), leading them to choose the private endpoint option despite the explicit 'no private IP or DNS changes' constraint.
Detailed technical explanation
How to think about this question
Service endpoints work by adding the subnet's identity to the traffic via source IP NAT, allowing the storage account firewall to filter based on the subnet's virtual network ID. This is achieved through the Azure backbone, not the public internet, ensuring traffic stays within the Azure network. In contrast, private endpoints use a separate NIC with a private IP in the subnet, requiring DNS zone changes to resolve the storage account FQDN to that private IP.
KKey Concepts to Remember
Read the scenario before looking for a memorised answer.
Find the constraint that changes the correct option.
Eliminate answers that are true in general but not in this case.
TExam Day Tips
→Watch for words such as best, first, most likely and least administrative effort.
→Review why wrong options are wrong, not only why the correct option is correct.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
How this comes up in practice
A media company stores terabytes of video archives that are accessed once a year for audit purposes. Moving these objects to a cold storage tier (Azure Archive, S3 Glacier, or Google Nearline) costs a fraction of hot storage. Questions like this test whether you understand storage tiers, access frequency tradeoffs, and retrieval latency requirements.
Related glossary terms
Concepts from this question explained
These glossary pages explain the core terms tested in this AZ-104 question in full detail.
Implement and Manage Storage — This question tests Implement and Manage Storage — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Enable the Microsoft.Storage service endpoint on AppSubnet and add AppSubnet as a network rule on the storage account. — Option A is correct because enabling the Microsoft.Storage service endpoint on AppSubnet allows traffic from that subnet to reach the storage account over the Azure backbone network using the public endpoint, without requiring a private IP or DNS changes. Adding AppSubnet as a network rule on the storage account restricts access exclusively to that subnet, fulfilling the security team's requirement.
What should I do if I get this AZ-104 question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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Question Discussion
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