- A
Generate a shared access signature (SAS) token and embed it in the application code.
Why wrong: SAS token is a secret; embedding it in code is insecure.
- B
Configure the storage account firewall to allow access only from the AKS cluster's virtual network and subnet.
Network restriction reduces attack surface.
- C
Assign the 'Storage Account Key Operator Service Role' RBAC role to the AKS cluster.
Why wrong: This role grants access to the storage account key, which is a secret and should be avoided.
- D
Enable Azure Active Directory Pod Identity (or Workload Identity) for the AKS cluster and assign the managed identity to the pod.
Managed identity eliminates the need for secrets in the pod.
- E
Create a service principal with a client secret and use that secret in the application configuration.
Why wrong: Client secret is still a secret that must be stored and managed.
Quick Answer
The correct answer is to enable Azure Active Directory Pod Identity or Workload Identity for the AKS cluster and assign the managed identity to the pod, then configure the storage account firewall to allow access only from the AKS cluster's virtual network. This combination eliminates the need for storage account keys or connection strings by allowing the pod to authenticate directly to Azure Storage using its managed identity, while the firewall restricts network access to the trusted VNet, preventing exposure over the public internet. On the AZ-500 exam, this scenario tests your understanding of secretless authentication and network segmentation—a common trap is choosing a SAS token or service principal with a client secret, both of which still require storing a credential. Remember the key principle: managed identity replaces keys, and the firewall replaces open endpoints. For a quick memory tip, think "MI + FW = No Keys" (Managed Identity plus Firewall equals no secrets).
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.
Your company is deploying a new application on Azure Kubernetes Service (AKS). The application needs to read and write data to an Azure Storage account. Security requirements mandate that no storage account keys or connection strings be stored in the application code or configuration files. Which TWO actions should you take?
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
Configure the storage account firewall to allow access only from the AKS cluster's virtual network and subnet.
Option A: Using a managed identity for the pod (via AAD Pod Identity or Workload Identity) allows the pod to authenticate without secrets. Option D: Setting the storage account firewall to allow access only from the AKS cluster's VNet provides network-level security. Option B (service principal with client secret) still requires a secret. Option C (SAS token) also requires a secret. Option E (RBAC with storage account key) is not possible; RBAC does not use keys.
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.
- ✗
Generate a shared access signature (SAS) token and embed it in the application code.
Why it's wrong here
SAS token is a secret; embedding it in code is insecure.
- ✓
Configure the storage account firewall to allow access only from the AKS cluster's virtual network and subnet.
Why this is correct
Network restriction reduces attack surface.
Related concept
CIDR notation defines the prefix length.
- ✗
Assign the 'Storage Account Key Operator Service Role' RBAC role to the AKS cluster.
Why it's wrong here
This role grants access to the storage account key, which is a secret and should be avoided.
- ✓
Enable Azure Active Directory Pod Identity (or Workload Identity) for the AKS cluster and assign the managed identity to the pod.
Why this is correct
Managed identity eliminates the need for secrets in the pod.
Related concept
CIDR notation defines the prefix length.
- ✗
Create a service principal with a client secret and use that secret in the application configuration.
Why it's wrong here
Client secret is still a secret that must be stored and managed.
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: Configure the storage account firewall to allow access only from the AKS cluster's virtual network and subnet. — Option A: Using a managed identity for the pod (via AAD Pod Identity or Workload Identity) allows the pod to authenticate without secrets. Option D: Setting the storage account firewall to allow access only from the AKS cluster's VNet provides network-level security. Option B (service principal with client secret) still requires a secret. Option C (SAS token) also requires a secret. Option E (RBAC with storage account key) is not possible; RBAC does not use keys.
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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Last reviewed: Jun 20, 2026
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