Quick Answer
The answer is Azure Key Vault with managed identity and rotation policy. This combination is correct because it directly addresses the need for automated secrets rotation and audit logging: Key Vault’s native rotation policy can automatically regenerate secrets on a schedule, while managed identities eliminate the need for hardcoded credentials by allowing applications to authenticate securely to Key Vault without storing secrets in code. On the Microsoft Azure Solutions Architect Expert AZ-305 exam, this scenario tests your ability to choose a fully managed, policy-driven approach over more manual alternatives—a common trap is selecting Azure Automation, which can rotate secrets but introduces unnecessary complexity and operational overhead compared to Key Vault’s built-in rotation. Remember that Key Vault handles both storage and lifecycle management, whereas App Service references only consume secrets, and Microsoft Entra ID manages identities, not secrets. Memory tip: think “KV + MI = auto-rotate and audit” to link Key Vault’s managed identity with its rotation policy for a clean, exam-ready solution.
This AZ-305 practice question tests your understanding of design infrastructure solutions. 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 are designing a solution to securely store and manage secrets for multiple applications deployed in Azure. The solution must support automated rotation of secrets and provide audit logging. Which Azure service should you use?
Microsoft Entra ID application registration
Why wrong: Not designed for secret storage.
Azure App Service Key Vault references
Why wrong: Only references secrets, does not manage rotation.
Azure Key Vault with managed identity and rotation policy
Supports automated rotation and audit logging.
Azure Automation with PowerShell runbooks
Why wrong: Can be used but requires custom scripting.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
Azure Key Vault with managed identity and rotation policy
Option C is correct because Azure Key Vault with managed identities and rotation policies provides automated secret rotation and audit logging. Option A is wrong because Azure App Service Key Vault references are for referencing secrets, not managing rotation. Option B is wrong because Azure Automation can rotate secrets but is more complex. Option D is wrong because Microsoft Entra ID is for identity, not secret storage.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
For each option: why learners choose it and why it is or isn't the right answer here.
Microsoft Entra ID application registration
Why it's wrong here
Not designed for secret storage.
Azure App Service Key Vault references
Why it's wrong here
Only references secrets, does not manage rotation.
Azure Key Vault with managed identity and rotation policy
Why this is correct
Supports automated rotation and audit logging.
Related concept
Read the scenario before looking for a memorised answer.
Azure Automation with PowerShell runbooks
Why it's wrong here
Can be used but requires custom scripting.
Common exam traps
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
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.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
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
Identify which AZ-305 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 infrastructure solutions — study guide chapter
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FAQ
Design infrastructure solutions — This question tests Design infrastructure solutions — Read the scenario before looking for a memorised answer..
The correct answer is: Azure Key Vault with managed identity and rotation policy — Option C is correct because Azure Key Vault with managed identities and rotation policies provides automated secret rotation and audit logging. Option A is wrong because Azure App Service Key Vault references are for referencing secrets, not managing rotation. Option B is wrong because Azure Automation can rotate secrets but is more complex. Option D is wrong because Microsoft Entra ID is for identity, not secret storage.
Identify which AZ-305 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.
Read the scenario before looking for a memorised answer.
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Last reviewed: Jun 20, 2026
This AZ-305 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-305 exam.
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