- A
Grant Azure AD user delegation permissions for each user accessing the storage account.
Why wrong: User delegation is for user-level access, not for service-to-service authentication.
- B
Use managed identities for Azure resources to authenticate from App Service and VMs to the storage account.
Managed identities provide secure, passwordless authentication for Azure services to storage.
- C
Enable Azure Storage firewall and virtual network service endpoints to restrict access to specific virtual networks and subnets.
Service endpoints restrict access to the storage account from specific VNets, reducing exposure.
- D
Configure shared access signature (SAS) tokens with a long expiration time for all applications.
Why wrong: SAS tokens with long expiration increase risk; not a best practice for broad access control.
- E
Distribute storage account access keys to all application developers.
Why wrong: Sharing access keys is insecure; it grants full control and bypasses fine-grained permissions.
Quick Answer
The correct answer is to enable Azure Storage firewall and virtual network service endpoints to restrict access to specific virtual networks and subnets, and to use managed identities for authentication from Azure App Service. Service endpoints provide a secure, direct connection from a virtual network to the storage account, effectively locking down network-level access so that only traffic from authorized subnets can reach the storage firewall. Managed identities eliminate the need for storing credentials in code by allowing Azure resources like App Service to authenticate to Azure Storage using Azure AD, ensuring that only authorized applications—not just any network traffic—can access the data. On the AZ-500 exam, this scenario tests your understanding of defense-in-depth: combining network segmentation with identity-based access control. A common trap is choosing shared access keys or storage account keys, which grant overly broad access and lack fine-grained control. Remember the memory tip: “Network first, identity second”—lock down the network with service endpoints, then authenticate with managed identities.
AZ-500 Secure compute, storage, and databases Practice Question
This AZ-500 practice question tests your understanding of secure compute, storage, and databases. 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.
You need to restrict access to a storage account containing sensitive financial data. The storage account is used by multiple Azure VMs and Azure App Service web apps. Only authorized applications and users should be able to access the storage account. Which TWO options should you implement?
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
Use managed identities for Azure resources to authenticate from App Service and VMs to the storage account.
Option A: Storage service endpoints restrict access to the storage account from specific VNets. Option C: Managed identities allow App Service to authenticate to storage without storing credentials. Option B (shared access keys) is broad and not recommended for fine-grained control. Option D (storage account keys) is even broader. Option E (Azure AD user delegation) is for user-level access, not service access.
Key principle: Count usable hosts — not total addresses — and remember that the network and broadcast addresses are not available to hosts in standard IPv4 subnets.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Grant Azure AD user delegation permissions for each user accessing the storage account.
Why it's wrong here
User delegation is for user-level access, not for service-to-service authentication.
- ✓
Use managed identities for Azure resources to authenticate from App Service and VMs to the storage account.
Why this is correct
Managed identities provide secure, passwordless authentication for Azure services to storage.
Related concept
CIDR notation defines the prefix length.
- ✓
Enable Azure Storage firewall and virtual network service endpoints to restrict access to specific virtual networks and subnets.
Why this is correct
Service endpoints restrict access to the storage account from specific VNets, reducing exposure.
Related concept
CIDR notation defines the prefix length.
- ✗
Configure shared access signature (SAS) tokens with a long expiration time for all applications.
Why it's wrong here
SAS tokens with long expiration increase risk; not a best practice for broad access control.
- ✗
Distribute storage account access keys to all application developers.
Why it's wrong here
Sharing access keys is insecure; it grants full control and bypasses fine-grained permissions.
Common exam traps
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.
Detailed technical explanation
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.
Key takeaway
Count usable hosts — not total addresses — and remember that the network and broadcast addresses are not available to hosts in standard IPv4 subnets.
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.
Review block sizes, usable host formulas (2^n − 2), and how to find network and broadcast addresses for /24 through /30. Then practise related AZ-500 subnetting questions on CIDR, address ranges, and subnet selection.
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Secure compute, storage, and databases — study guide chapter
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FAQ
Questions learners often ask
What does this AZ-500 question test?
Secure compute, storage, and databases — This question tests Secure compute, storage, and databases — CIDR notation defines the prefix length..
What is the correct answer to this question?
The correct answer is: Use managed identities for Azure resources to authenticate from App Service and VMs to the storage account. — Option A: Storage service endpoints restrict access to the storage account from specific VNets. Option C: Managed identities allow App Service to authenticate to storage without storing credentials. Option B (shared access keys) is broad and not recommended for fine-grained control. Option D (storage account keys) is even broader. Option E (Azure AD user delegation) is for user-level access, not service access.
What should I do if I get this AZ-500 question wrong?
Review block sizes, usable host formulas (2^n − 2), and how to find network and broadcast addresses for /24 through /30. Then practise related AZ-500 subnetting questions on CIDR, address ranges, and subnet selection.
What is the key concept behind this question?
CIDR notation defines the prefix length.
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-500
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. You need to ensure that only approved applications can access your Azure storage account. What should you configure?
easy- A.Use shared access keys for all storage account access.
- ✓ B.Configure firewall rules to allow only specific virtual networks and IP addresses.
- C.Assign Azure RBAC roles to the storage account.
- D.Use private endpoints and disable public network access.
Why B: Firewall and virtual network settings with service endpoints allow you to restrict access to specific VNets and IP ranges. Option B is wrong because shared access keys do not restrict by application. Option C is wrong because Azure RBAC controls user permissions, not application access. Option D is wrong because private endpoints provide private IP connectivity but still require additional controls to restrict by application.
Last reviewed: Jun 20, 2026
This AZ-500 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-500 exam.
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