- A
Allow trusted Microsoft services to access the storage account
Allowing trusted Microsoft services is the correct choice when a supported Azure platform service needs to reach the storage account without opening the firewall broadly. It permits specific Microsoft-managed services to bypass the network restriction while keeping public traffic denied. This is appropriate when the workload is an Azure service rather than a customer VM or subnet.
- B
Add the backup server's public IP address to the storage firewall
Why wrong: Azure backup workloads typically do not rely on a stable customer-controlled public IP that can be safely allowlisted here, and this would not match the private-by-design requirement.
- C
Create a service endpoint on the subnet that hosts the backup job
Why wrong: Service endpoints apply to subnets and are intended for VM or subnet-based traffic, not for every Microsoft-managed backup integration scenario.
- D
Disable the storage account firewall temporarily during each backup window
Why wrong: Temporarily disabling the firewall weakens security and is not a sustainable or recommended operational control.
Quick Answer
The answer is to enable the "Allow trusted Microsoft services to access this storage account" setting. This is correct because Azure Storage firewalls include a built-in exception that permits specific Azure platform services, like Azure Backup, to bypass the public network deny rule without needing a private endpoint. These trusted services run on Microsoft-controlled infrastructure and are authenticated at the control plane, so they are not blocked by IP-based restrictions. On the AZ-104 exam, this scenario tests your understanding of storage network security and the distinction between public IP exceptions and service-level trust. A common trap is confusing this with adding a service tag or a specific IP range, but the key is that no public IP is involved—only Microsoft’s internal authentication. Memory tip: think of it as a "VIP pass" for Azure’s own services, not a public network rule.
AZ-104 Implement and Manage Storage Practice Question
This AZ-104 practice question tests your understanding of implement and manage storage. Match the stated requirement to the specific cloud service, access model, or configuration option — many options are valid in isolation but not for this scenario. 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.
A backup job from an Azure service must write to a storage account that has the network firewall set to deny all public traffic. The team does not want to create a private endpoint for this workload. What should the administrator enable?
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
Allow trusted Microsoft services to access the storage account
Option A is correct because Azure Storage firewalls include a special exception for 'Allow trusted Microsoft services to access this storage account'. When enabled, this exception permits Azure platform services—such as Azure Backup—to bypass the public network deny rule and write to the storage account without requiring a private endpoint. This works because the backup service runs on Microsoft-owned infrastructure that is authenticated and authorized at the control plane level, not via a public IP.
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.
- ✓
Allow trusted Microsoft services to access the storage account
Why this is correct
Allowing trusted Microsoft services is the correct choice when a supported Azure platform service needs to reach the storage account without opening the firewall broadly. It permits specific Microsoft-managed services to bypass the network restriction while keeping public traffic denied. This is appropriate when the workload is an Azure service rather than a customer VM or subnet.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Add the backup server's public IP address to the storage firewall
Why it's wrong here
Azure backup workloads typically do not rely on a stable customer-controlled public IP that can be safely allowlisted here, and this would not match the private-by-design requirement.
- ✗
Create a service endpoint on the subnet that hosts the backup job
Why it's wrong here
Service endpoints apply to subnets and are intended for VM or subnet-based traffic, not for every Microsoft-managed backup integration scenario.
- ✗
Disable the storage account firewall temporarily during each backup window
Why it's wrong here
Temporarily disabling the firewall weakens security and is not a sustainable or recommended operational control.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often confuse 'Allow trusted Microsoft services' with a generic security bypass, not realizing it is a specific, documented exception designed for Azure platform services like Backup, Log Analytics, and Azure Site Recovery.
Trap categories for this question
Scenario analysis trap
Service endpoints apply to subnets and are intended for VM or subnet-based traffic, not for every Microsoft-managed backup integration scenario.
Detailed technical explanation
How to think about this question
Under the hood, the 'Allow trusted Microsoft services' setting leverages Azure's internal service tags and resource-level RBAC to authenticate the calling service. For Azure Backup, the service uses its own managed identity to authenticate to the storage account, and the firewall exception allows this traffic even when public network access is denied. This is distinct from a service endpoint, which requires a subnet delegation and does not apply to platform services that originate outside the customer's virtual network.
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.
What to study next
Got this wrong? Here's your next step.
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FAQ
Questions learners often ask
What does this AZ-104 question test?
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: Allow trusted Microsoft services to access the storage account — Option A is correct because Azure Storage firewalls include a special exception for 'Allow trusted Microsoft services to access this storage account'. When enabled, this exception permits Azure platform services—such as Azure Backup—to bypass the public network deny rule and write to the storage account without requiring a private endpoint. This works because the backup service runs on Microsoft-owned infrastructure that is authenticated and authorized at the control plane level, not via a public IP.
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.
About these practice questions
Courseiva creates original exam-style practice questions with explanations and wrong-answer analysis. It does not publish real exam questions, exam dumps, or protected exam content. Learn why practice questions differ from exam dumps →
Same concept, more angles
1 more ways this is tested on AZ-104
These questions test the same concept from different angles. Work through them to make sure you can recognise it however the exam phrases it.
Variation 1. Diagnostic settings on an Azure storage account must send logs to a destination storage account that has its firewall set to deny all public network access. The team cannot create a private endpoint, but the destination service is one of the Azure services that can bypass the firewall as a trusted Microsoft service. What should the administrator enable?
hard- A.A service endpoint on the destination storage account subnet
- ✓ B.The Allow trusted Microsoft services to bypass this firewall setting
- C.A shared access signature with read permission
- D.A private DNS zone linked to the workspace virtual network
Why B: Option B is correct because the 'Allow trusted Microsoft services to bypass this firewall' setting enables specific Azure services, such as Azure Monitor or Azure Backup, to write diagnostic logs to a storage account even when the storage account's firewall blocks all public network access. This bypass is controlled at the Azure platform level and does not require a private endpoint or public IP, making it the only viable solution when the destination storage account denies all public traffic.
Last reviewed: Jun 11, 2026
This AZ-104 practice question is part of Courseiva's free Microsoft certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the AZ-104 exam.
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