Question 430 of 997

Implement Azure security →mediumMultiple ChoiceObjective-mapped

Quick Answer

The correct configuration is to enable the web app’s system-assigned managed identity, assign the Storage Blob Data Contributor role to that identity, and disable anonymous access on the storage account. This works because a managed identity provides an automatically managed service principal in Microsoft Entra ID, allowing the App Service to authenticate without storing credentials. By assigning the Storage Blob Data Contributor role, you grant the identity the necessary permissions to read and write blobs, while disabling anonymous access enforces that only authenticated Entra ID requests are accepted. On the AZ-204 exam, this scenario tests your understanding of identity-based access versus key-based or SAS-based methods—a common trap is choosing storage account keys or SAS tokens, which bypass Entra ID and violate the security requirement. Remember the mnemonic “M.I. + Role + No Anonymous” to recall that managed identity, a role assignment, and disabling anonymous access are the three essential steps for secure, identity-only blob access.

AZ-204 Implement Azure security Practice Question

This AZ-204 practice question tests your understanding of implement azure security. 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.

A company deploys an Azure App Service web app that stores sensitive data in Azure Blob Storage. The security team requires that all access to the blob storage must be authenticated and authorized via Microsoft Entra ID, and that no anonymous access is permitted. The web app must also be able to access the storage using its managed identity. Which configuration should the company implement?

Question 1mediummultiple choice

Full question →

A
Create a custom RBAC role that allows full access to the storage account and assign it to the web app's service principal.
Why wrong: A custom role is unnecessary; Storage Blob Data Contributor is sufficient, but the service principal must be the managed identity, not a separate registration.
B
Enable the web app's system-assigned managed identity, assign the Storage Blob Data Contributor role to the identity, and disable anonymous access on the storage account.
Managed identity provides Entra ID authentication and RBAC authorization.
C
Use storage account access keys and store them in Key Vault, then configure the web app to retrieve them at runtime.
Why wrong: Access keys do not use Entra ID authentication.
D
Generate a shared access signature (SAS) token with read permissions, store it in App Settings, and configure the web app to use it.
Why wrong: SAS tokens are not tied to managed identity and do not use Entra ID.

Full breakdown with real-world context →

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

✓

Enable the web app's system-assigned managed identity, assign the Storage Blob Data Contributor role to the identity, and disable anonymous access on the storage account.

Option B is correct because enabling managed identity and assigning the Storage Blob Data Contributor role ensures the web app can access blobs via Entra ID authentication. Disabling anonymous access is a separate step. Option A is wrong because storage account keys bypass Entra ID. Option C is wrong because SAS tokens do not use managed identity. Option D is wrong because shared access policy is not used for managed identity access.

Key principle: NAT direction and interface roles matter as much as the IP address mapping. Inside/outside designation controls which traffic is translated.

Answer analysis

Option-by-option breakdown

For each option: why learners choose it and why it is or isn't the right answer here.

✗
Create a custom RBAC role that allows full access to the storage account and assign it to the web app's service principal.
Why it's wrong here
A custom role is unnecessary; Storage Blob Data Contributor is sufficient, but the service principal must be the managed identity, not a separate registration.
✓
Enable the web app's system-assigned managed identity, assign the Storage Blob Data Contributor role to the identity, and disable anonymous access on the storage account.
Why this is correct
Managed identity provides Entra ID authentication and RBAC authorization.
Related concept
Static NAT maps one inside address to one outside address.
✗
Use storage account access keys and store them in Key Vault, then configure the web app to retrieve them at runtime.
Why it's wrong here
Access keys do not use Entra ID authentication.
✗
Generate a shared access signature (SAS) token with read permissions, store it in App Settings, and configure the web app to use it.
Why it's wrong here
SAS tokens are not tied to managed identity and do not use Entra ID.

Common exam traps

Common exam trap: NAT rules depend on direction and matching traffic

NAT is not only about the public address. The inside/outside interface roles and the ACL or rule that matches traffic are just as important.

Detailed technical explanation

How to think about this question

NAT questions usually test address translation, overload/PAT behaviour, static mappings and whether the right traffic is being translated. Read the interface direction and address terms carefully.

KKey Concepts to Remember

Static NAT maps one inside address to one outside address.
PAT allows many inside hosts to share one public address using ports.
Inside local and inside global describe the private and translated addresses.
NAT ACLs identify traffic for translation, not always security filtering.

TExam Day Tips

Identify inside and outside interfaces first.
Check whether the scenario needs static NAT, dynamic NAT or PAT.
Do not confuse NAT matching ACLs with normal packet-filtering intent.

Key takeaway

NAT direction and interface roles matter as much as the IP address mapping. Inside/outside designation controls which traffic is translated.

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.

Review the four NAT address types (inside local, inside global, outside local, outside global), PAT port overload, and static vs dynamic NAT use cases. Then practise related AZ-204 NAT questions on configuration and troubleshooting.

Related AZ-204 practice-question pages

Use these pages to review the topic behind this question. This is how one missed question becomes focused revision.

Develop Azure compute solutions practice questions

Practise AZ-204 questions linked to Develop Azure compute solutions.

Develop for Azure storage practice questions

Practise AZ-204 questions linked to Develop for Azure storage.

Implement Azure security practice questions

Practise AZ-204 questions linked to Implement Azure security.

Connect to and consume Azure services and third-party services practice questions

Practise AZ-204 questions linked to Connect to and consume Azure services and third-party services.

Monitor, troubleshoot, and optimize Azure solutions practice questions

Practise AZ-204 questions linked to Monitor, troubleshoot, and optimize Azure solutions.

AZ-204 fundamentals practice questions

Practise AZ-204 questions linked to AZ-204 fundamentals.

AZ-204 scenario practice questions

Practise AZ-204 questions linked to AZ-204 scenario.

AZ-204 troubleshooting practice questions

Practise AZ-204 questions linked to AZ-204 troubleshooting.

Practice this exam

Start a free AZ-204 practice session

Short sessions build daily habit. Longer sessions build exam-day stamina. Try a timed session to simulate real conditions.

10 questions 20 questions 30 questions 50 questions Timed 30

AZ-204 practice-test guide →Study guide →Browse all practice tests

FAQ

Questions learners often ask

What does this AZ-204 question test?

Implement Azure security — This question tests Implement Azure security — Static NAT maps one inside address to one outside address..

What is the correct answer to this question?

The correct answer is: Enable the web app's system-assigned managed identity, assign the Storage Blob Data Contributor role to the identity, and disable anonymous access on the storage account. — Option B is correct because enabling managed identity and assigning the Storage Blob Data Contributor role ensures the web app can access blobs via Entra ID authentication. Disabling anonymous access is a separate step. Option A is wrong because storage account keys bypass Entra ID. Option C is wrong because SAS tokens do not use managed identity. Option D is wrong because shared access policy is not used for managed identity access.

What should I do if I get this AZ-204 question wrong?

What is the key concept behind this question?

Static NAT maps one inside address to one outside address.

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 →

How Courseiva writes practice questions · Editorial policy

Keep practising

Question Discussion

Share a tip, memory trick, or ask about the reasoning behind this question. Do not post real exam questions, leaked content, braindumps, or copyrighted exam material. Comments are moderated and may be removed without notice.

Loading comments…

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.