- A
Store the credentials in a variable within the Logic App designer
Why wrong: Storing credentials directly in the Logic App definition exposes them as plain text and is not secure.
- B
Use an Azure Key Vault action with a connection that uses a username and password
Why wrong: While Key Vault stores secrets securely, connecting to it with a username/password still requires storing those credentials somewhere, which is not secure.
- C
Use an Azure Key Vault connector with a managed identity assigned to the Logic App
The managed identity authenticates to Key Vault without any stored credentials, allowing the Logic App to retrieve the Office 365 credentials securely at runtime.
- D
Store the credentials in an Azure Storage table and fetch them in the Logic App
Why wrong: Azure Storage tables are not designed for secure secret storage and should not be used for credentials.
Quick Answer
The correct approach is to use an Azure Key Vault connector with a managed identity assigned to the Logic App. This method securely stores Office 365 credentials in Key Vault while the managed identity provides an Azure AD-backed identity for the Logic App, eliminating the need to hardcode secrets or manage rotating passwords. On the AZ-204 exam, this scenario tests your understanding of how managed identities integrate with Key Vault to achieve secure, auditable secret access without connection strings containing usernames or passwords. A common trap is choosing a connection string with stored credentials or a shared access signature, both of which expose secrets and violate security best practices. Remember the mnemonic “MIV” for Managed Identity + Key Vault: the Logic App authenticates to Key Vault via its managed identity, then retrieves the Office 365 credentials as secrets, keeping them out of code and configuration entirely.
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. 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 building an Azure Logic App that must send email notifications via Office 365 when a new order is placed. You need to securely store the Office 365 credentials and reference them in the Logic App. Which approach should you use?
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
Use an Azure Key Vault connector with a managed identity assigned to the Logic App
Option C is correct because using an Azure Key Vault connector with a managed identity assigned to the Logic App allows you to securely store Office 365 credentials in Key Vault and authenticate to it without hardcoding secrets or managing credentials. The managed identity provides an Azure AD-backed identity for the Logic App, eliminating the need for username/password in connection strings and enabling secure, auditable access to secrets.
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 credentials in a variable within the Logic App designer
Why it's wrong here
Storing credentials directly in the Logic App definition exposes them as plain text and is not secure.
- ✗
Use an Azure Key Vault action with a connection that uses a username and password
Why it's wrong here
While Key Vault stores secrets securely, connecting to it with a username/password still requires storing those credentials somewhere, which is not secure.
- ✓
Use an Azure Key Vault connector with a managed identity assigned to the Logic App
Why this is correct
The managed identity authenticates to Key Vault without any stored credentials, allowing the Logic App to retrieve the Office 365 credentials securely at runtime.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Store the credentials in an Azure Storage table and fetch them in the Logic App
Why it's wrong here
Azure Storage tables are not designed for secure secret storage and should not be used for credentials.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often confuse using a Key Vault action with a username/password connection (Option B) as secure, when in fact the connection itself still stores credentials, whereas a managed identity eliminates credential storage entirely.
Detailed technical explanation
How to think about this question
Under the hood, the managed identity for a Logic App is an Azure AD service principal automatically created and managed by Azure. When the Logic App uses the Key Vault connector, it obtains an access token from Azure AD via the managed identity endpoint (169.254.169.254 for IMDS) and uses that token to authenticate to Key Vault, which then returns the secret (e.g., Office 365 password) over HTTPS. This approach ensures that credentials are never stored in the Logic App's code or configuration, and all access is logged in Azure Monitor and Key Vault diagnostics.
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.
TExam Day Tips
- 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 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.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
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Connect to and consume Azure services and third-party services — study guide chapter
Learn the concepts, then practise the questions
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Connect to and consume Azure services and third-party services practice questions
Targeted practice on this topic area only
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AZ-204 practice test guide
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FAQ
Questions learners often ask
What does this AZ-204 question test?
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: Use an Azure Key Vault connector with a managed identity assigned to the Logic App — Option C is correct because using an Azure Key Vault connector with a managed identity assigned to the Logic App allows you to securely store Office 365 credentials in Key Vault and authenticate to it without hardcoding secrets or managing credentials. The managed identity provides an Azure AD-backed identity for the Logic App, eliminating the need for username/password in connection strings and enabling secure, auditable access to secrets.
What should I do if I get this AZ-204 question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
About these practice questions
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Last reviewed: Jun 11, 2026
This AZ-204 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-204 exam.
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