The answer is a user-assigned managed identity used with Azure AD Pod Identity. This is correct because AKS clusters themselves use a system-assigned managed identity for infrastructure tasks like managing load balancers, but individual pods cannot inherit that identity to authenticate to services like Azure SQL. Instead, Azure AD Pod Identity maps a user-assigned managed identity to specific pods, allowing them to securely access Azure SQL Database without storing credentials. On the Microsoft Cybersecurity Architect exam, this distinction tests your understanding of identity separation between the control plane and workloads—a common trap is confusing the cluster’s system-assigned identity with pod-level access. Remember that pods are not the cluster; they need their own identity projection. A useful memory tip: “Cluster gets system, pods get user—assign it to the pod, not the node.”
SC-100 Practice Question: Design security solutions for applications and data
This SC-100 practice question tests your understanding of design security solutions for applications and data. 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.
Your company is developing a microservices application that will run on Azure Kubernetes Service (AKS). The application must authenticate to Azure SQL Database using managed identities. Which type of managed identity should you assign to the AKS cluster?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
User-assigned managed identity and Azure AD Pod Identity
Option B is correct because AKS uses a system-assigned managed identity for the cluster itself to integrate with Azure resources like load balancers. For pods to access Azure SQL, you need a pod identity (like Azure AD Pod Identity) which uses a user-assigned managed identity. Option A is wrong because system-assigned is for cluster, not pods. Option C is wrong because service principal is legacy. Option D is wrong because certificate-based authentication is not managed identity.
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.
✗
Certificate-based authentication using Azure Key Vault
Why it's wrong here
This is not a managed identity.
✗
System-assigned managed identity on the cluster
Why it's wrong here
Used for cluster operations, not for pod-level authentication.
✗
Service principal with client secret
Why it's wrong here
Service principals require secret management.
✓
User-assigned managed identity and Azure AD Pod Identity
Why this is correct
Pod Identity assigns a user-assigned identity to pods to access Azure resources.
Related concept
Read the scenario before looking for a memorised answer.
Common exam traps
Common exam trap: answer the scenario, not the keyword
Many certification questions include familiar terms but test a specific constraint. Read the exact wording before choosing an answer that is generally true but wrong for this case.
Detailed technical explanation
How to think about this question
This question should be treated as a scenario, not a definition check. Identify the problem, the constraint and the best action. Then compare each option against those facts.
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.
Use explanations to understand the rule behind the answer.
TExam Day Tips
→Underline the problem statement mentally.
→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 company's IT admin needs to give a contractor read-only access to production logs without sharing account credentials. Using role-based access control (RBAC) and temporary scoped permissions — not a permanent shared password — is the correct pattern. Questions like this test whether you can apply least-privilege access across cloud identity services.
Related glossary terms
Concepts from this question explained
These glossary pages explain the core terms tested in this SC-100 question in full detail.
Identify which SC-100 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
Design security solutions for applications and data — This question tests Design security solutions for applications and data — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: User-assigned managed identity and Azure AD Pod Identity — Option B is correct because AKS uses a system-assigned managed identity for the cluster itself to integrate with Azure resources like load balancers. For pods to access Azure SQL, you need a pod identity (like Azure AD Pod Identity) which uses a user-assigned managed identity. Option A is wrong because system-assigned is for cluster, not pods. Option C is wrong because service principal is legacy. Option D is wrong because certificate-based authentication is not managed identity.
What should I do if I get this SC-100 question wrong?
Identify which SC-100 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
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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