This AZ-204 practice question tests your understanding of implement azure security. 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. A key principle to apply: managed identities provide an identity for Azure services in Azure AD.. 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.
A developer is implementing least-privilege storage access. The application runs on Azure App Service and must avoid stored credentials. Which design should be used? The design must avoid adding custom operational scripts.
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue: "least"
Why it matters: You want the option with minimum overhead, fewest steps, or lowest impact — not the most feature-rich or comprehensive answer.
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Enable managed identity and grant least-privilege access to the target resource
Option D is correct because Azure Managed Identity provides an automatically managed identity in Azure AD that allows the App Service to authenticate to any service supporting Azure AD authentication without storing any credentials. By granting the managed identity only the specific permissions required (least-privilege) on the target storage resource (e.g., Storage Blob Data Reader), the application avoids stored credentials and eliminates the need for custom operational scripts. This aligns with the principle of zero standing credentials and is the recommended approach for Azure App Service.
Key principle: Managed identities provide an identity for Azure services in Azure AD.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
✗
Use a shared administrator account
Why it's wrong here
Shared accounts remove accountability and violate least privilege.
✗
Disable authentication for the target resource
Why it's wrong here
Removing authentication is not a secure design.
✗
Store a client secret in source control
Why it's wrong here
Source-controlled secrets are exposed and difficult to rotate safely.
✓
Enable managed identity and grant least-privilege access to the target resource
Why this is correct
Managed identity lets Azure-hosted apps authenticate without stored secrets.
Clue confirmation
The clue word "least" in the question point toward this answer.
Related concept
Managed identities provide an identity for Azure services in Azure AD.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates may think storing a client secret in source control (Option C) is acceptable if the repository is private, but the question explicitly requires avoiding stored credentials, and any secret in source control is a security risk that violates the principle of credentialless access.
Detailed technical explanation
How to think about this question
Under the hood, Azure Managed Identity works by provisioning a service principal in Azure AD automatically when enabled on the App Service. The App Service runtime obtains an access token from the Azure Instance Metadata Service (IMDS) endpoint (169.254.169.254) using the managed identity's client ID, which is then used to authenticate to Azure Storage via OAuth 2.0 bearer tokens. A subtle behavior is that the token is cached and automatically refreshed by the Azure SDK, so no manual token management is needed. In a real-world scenario, if the storage account has firewall rules, the managed identity must be added as a trusted service exception to bypass IP restrictions.
KKey Concepts to Remember
Managed identities provide an identity for Azure services in Azure AD.
They eliminate the need for developers to manage credentials.
Managed identities support both system-assigned and user-assigned types.
RBAC is used to grant managed identities access to other Azure resources.
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
Managed identities provide an identity for Azure services in Azure AD.
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.
Related glossary terms
Concepts from this question explained
These glossary pages explain the core terms tested in this AZ-204 question in full detail.
Review managed identities provide an identity for Azure services in Azure AD., then practise related AZ-204 questions on the same topic to reinforce the concept.
Implement Azure security — This question tests Implement Azure security — Managed identities provide an identity for Azure services in Azure AD..
What is the correct answer to this question?
The correct answer is: Enable managed identity and grant least-privilege access to the target resource — Option D is correct because Azure Managed Identity provides an automatically managed identity in Azure AD that allows the App Service to authenticate to any service supporting Azure AD authentication without storing any credentials. By granting the managed identity only the specific permissions required (least-privilege) on the target storage resource (e.g., Storage Blob Data Reader), the application avoids stored credentials and eliminates the need for custom operational scripts. This aligns with the principle of zero standing credentials and is the recommended approach for Azure App Service.
What should I do if I get this AZ-204 question wrong?
Review managed identities provide an identity for Azure services in Azure AD., then practise related AZ-204 questions on the same topic to reinforce the concept.
Are there clue words in this question I should notice?
Yes — watch for: "least". You want the option with minimum overhead, fewest steps, or lowest impact — not the most feature-rich or comprehensive answer.
What is the key concept behind this question?
Managed identities provide an identity for Azure services in Azure AD.
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