The correct configuration is to configure a service endpoint for Azure Storage and add the virtual network subnet to the firewall rules. This works because a service endpoint extends your virtual network identity to the Azure Storage service, allowing you to secure storage account traffic exclusively to your VNet by binding the subnet’s traffic to the storage firewall. On the Microsoft Azure Security Engineer Associate AZ-500 exam, this scenario tests your understanding of network segmentation controls—specifically the difference between service endpoints, which restrict by VNet, and IP-based firewall rules, which only filter by public IP addresses. A common trap is confusing service endpoints with private endpoints; remember that private endpoints provide private IP connectivity but do not block public access by default, while service endpoints combined with firewall rules actively deny all traffic outside the specified subnet. Memory tip: think “SE-FW” (Service Endpoint plus FireWall) to lock storage to your VNet.
AZ-500 Secure compute, storage, and databases Practice Question
This AZ-500 practice question tests your understanding of secure compute, storage, and databases. 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.
You need to ensure that an Azure Storage account only allows access from a specific virtual network. Which configuration should you use?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Configure a service endpoint for Azure Storage and add the virtual network subnet to the firewall rules.
Service endpoints allow restricting access to Azure services from a specific virtual network. Option C is correct. Firewalls and IP rules are for public IP addresses, not VNets. Private endpoints provide private IP connectivity but do not block public access by default. Access keys don't restrict network 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.
✗
Enable Azure Private Link and assign a private endpoint.
Why it's wrong here
Private endpoint provides private IP connectivity but does not block public access unless combined with firewall.
✓
Configure a service endpoint for Azure Storage and add the virtual network subnet to the firewall rules.
Why this is correct
Service endpoints allow restricting access to the storage account from a specific VNet.
Configure firewall rules to allow only the virtual network's public IP range.
Why it's wrong here
Firewall rules are for public IPs, not virtual network traffic.
✗
Generate new storage account access keys and share them only with the virtual network.
Why it's wrong here
Access keys do not restrict network access; they are shared secrets.
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.
Related glossary terms
Concepts from this question explained
These glossary pages explain the core terms tested in this AZ-500 question in full detail.
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.
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: Configure a service endpoint for Azure Storage and add the virtual network subnet to the firewall rules. — Service endpoints allow restricting access to Azure services from a specific virtual network. Option C is correct. Firewalls and IP rules are for public IP addresses, not VNets. Private endpoints provide private IP connectivity but do not block public access by default. Access keys don't restrict network 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.
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