The correct solution is to store the connection string as a Key Vault reference in App Service application settings and use Key Vault’s auto-rotation feature. This works because Key Vault references are resolved at runtime by the App Service platform, so when the secret rotates in Key Vault, the app picks up the new value instantly without requiring a restart or redeployment. On the AZ-204 exam, this scenario tests your understanding of how to manage secrets in a serverless or PaaS environment while maintaining zero downtime—a common trap is assuming you must update the connection string in code or via CLI, which would break the automatic rotation requirement. Remember that Key Vault references in App Service settings act as a live pointer, not a static copy, so the app always pulls the latest secret. Memory tip: think “reference, not refresh”—the app references the vault, so rotation is seamless.
AZ-204 Practice Question: Connect to and consume Azure services and third-party services
This AZ-204 practice question tests your understanding of connect to and consume azure services and third-party services. 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 have an Azure App Service web app that uses Azure SQL Database. The connection string is stored in Azure Key Vault. You need to automatically rotate the database password every 30 days without app downtime. Which solution should you implement?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Store the connection string as a Key Vault reference in App Service application settings and use Key Vault's auto-rotation.
Option D is correct because storing the connection string as a Key Vault reference in App Service configuration allows automatic rotation without restart. Option A is wrong because updating the connection string in code requires redeployment. Option B is wrong because updating App Service settings via CLI does not support automatic rotation. Option C is wrong because using Managed Identity avoids passwords but does not rotate them; it's a better approach but the question specifically asks for password rotation without downtime.
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.
✓
Store the connection string as a Key Vault reference in App Service application settings and use Key Vault's auto-rotation.
Why this is correct
Key Vault reference updates automatically without restart.
Related concept
Read the scenario before looking for a memorised answer.
✗
Use Azure CLI to update the connection string in App Service settings.
Why it's wrong here
Requires manual update, no automatic rotation.
✗
Use Managed Identity to access SQL Database instead of a password.
Why it's wrong here
Avoids password but does not rotate it.
✗
Update the connection string in the application code and redeploy.
Why it's wrong here
Requires redeployment, causes downtime.
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 AZ-204 question in full detail.
Identify which AZ-204 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.
Connect to and consume Azure services and third-party services — This question tests Connect to and consume Azure services and third-party services — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Store the connection string as a Key Vault reference in App Service application settings and use Key Vault's auto-rotation. — Option D is correct because storing the connection string as a Key Vault reference in App Service configuration allows automatic rotation without restart. Option A is wrong because updating the connection string in code requires redeployment. Option B is wrong because updating App Service settings via CLI does not support automatic rotation. Option C is wrong because using Managed Identity avoids passwords but does not rotate them; it's a better approach but the question specifically asks for password rotation without downtime.
What should I do if I get this AZ-204 question wrong?
Identify which AZ-204 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.
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 →
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. A company uses Azure Functions with an HTTP trigger and Azure Cosmos DB. They need to securely store connection strings for Cosmos DB and rotate them automatically every 90 days. Which service should they use?
medium
✓ A.Azure Key Vault
B.Managed Identity
C.Azure App Configuration
D.Microsoft Entra ID
Why A: Azure Key Vault is the correct choice for storing secrets like connection strings and supports automatic rotation. Option A is wrong because App Configuration is for feature flags and configuration settings, not secret rotation. Option B is wrong because Managed Identity provides identity but not secret rotation. Option D is wrong because Azure AD is for authentication and authorization, not secret management.
Last reviewed: Jun 20, 2026
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