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Implement a secure environment →easyMultiple ChoiceObjective-mapped

DP-300 Implement a secure environment Practice Question

This DP-300 practice question tests your understanding of implement a secure environment. The scenario asks you to isolate a root cause — eliminate options that address a different problem before choosing. 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.

Exhibit

{
  "identity": {
    "type": "UserAssigned",
    "userAssignedIdentities": {
      "/subscriptions/123/resourceGroups/rg1/providers/Microsoft.ManagedIdentity/userAssignedIdentities/mi-sql-access": {}
    }
  },
  "properties": {
    "serverKeyType": "AzureKeyVault",
    "uri": "https://kv-sql-keys.vault.azure.net/keys/sql-key/abc123",
    "serverKeyName": "sql-key"
  }
}

Refer to the exhibit. You are configuring Azure SQL Database Transparent Data Encryption (TDE) with customer-managed keys (CMK) stored in Azure Key Vault. The deployment uses a user-assigned managed identity. However, after deployment, the TDE status shows 'Inaccessible'. What is the most likely cause?

Clue words in this question

Noticing these words before you look at the options changes how you read each choice.

  • Clue: "most likely"

    Why it matters: Probability qualifier — the question wants the most probable cause or outcome, not a guaranteed one. Eliminate low-probability options.

Exhibit

{
  "identity": {
    "type": "UserAssigned",
    "userAssignedIdentities": {
      "/subscriptions/123/resourceGroups/rg1/providers/Microsoft.ManagedIdentity/userAssignedIdentities/mi-sql-access": {}
    }
  },
  "properties": {
    "serverKeyType": "AzureKeyVault",
    "uri": "https://kv-sql-keys.vault.azure.net/keys/sql-key/abc123",
    "serverKeyName": "sql-key"
  }
}

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

✓

The managed identity lacks 'Get', 'Wrap Key', and 'Unwrap Key' permissions on the Key Vault key

Option D is correct because when using customer-managed keys (CMK) for TDE in Azure SQL Database, the managed identity assigned to the logical server must have 'Get', 'Wrap Key', and 'Unwrap Key' permissions on the key in Azure Key Vault. Without these specific permissions, the SQL Database service cannot retrieve or use the key to encrypt or decrypt the database encryption key, resulting in an 'Inaccessible' TDE status.

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.

  • ✗

    The key specified in the URI does not exist

    Why it's wrong here

    The key exists because it is specified.

  • ✗

    The user-assigned managed identity is not assigned to the SQL Database server

    Why it's wrong here

    The identity is specified in the template, so it is assigned.

  • ✗

    The Key Vault firewall is enabled and does not allow Azure services

    Why it's wrong here

    If firewall is enabled, it could block access, but the most common issue is missing permissions.

  • ✓

    The managed identity lacks 'Get', 'Wrap Key', and 'Unwrap Key' permissions on the Key Vault key

    Why this is correct

    These permissions are required for TDE with CMK.

    Clue confirmation

    The clue word "most likely" in the question point toward this answer.

    Related concept

    Read the scenario before looking for a memorised answer.

Common exam traps

Common exam trap: answer the scenario, not the keyword

The trap here is that candidates often assume the issue is with the Key Vault firewall or the identity assignment, but the most common post-deployment cause of 'Inaccessible' TDE is missing cryptographic permissions on the managed identity, not network or identity existence issues.

Detailed technical explanation

How to think about this question

Under the hood, TDE with CMK uses the SQL Database service to wrap and unwrap the Database Encryption Key (DEK) using the customer-managed key in Key Vault. The managed identity authenticates to Key Vault via Azure AD, and the 'Get' permission allows reading the key metadata, while 'Wrap Key' and 'Unwrap Key' are required for cryptographic operations. In a real-world scenario, if permissions are granted after deployment, the TDE status may remain 'Inaccessible' until the key is re-validated or the database is restarted, which can cause confusion during troubleshooting.

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 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.

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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FAQ

Questions learners often ask

What does this DP-300 question test?

Implement a secure environment — This question tests Implement a secure environment — Read the scenario before looking for a memorised answer..

What is the correct answer to this question?

The correct answer is: The managed identity lacks 'Get', 'Wrap Key', and 'Unwrap Key' permissions on the Key Vault key — Option D is correct because when using customer-managed keys (CMK) for TDE in Azure SQL Database, the managed identity assigned to the logical server must have 'Get', 'Wrap Key', and 'Unwrap Key' permissions on the key in Azure Key Vault. Without these specific permissions, the SQL Database service cannot retrieve or use the key to encrypt or decrypt the database encryption key, resulting in an 'Inaccessible' TDE status.

What should I do if I get this DP-300 question wrong?

Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.

Are there clue words in this question I should notice?

Yes — watch for: "most likely". Probability qualifier — the question wants the most probable cause or outcome, not a guaranteed one. Eliminate low-probability options.

What is the key concept behind this question?

Read the scenario before looking for a memorised answer.

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Last reviewed: Jul 4, 2026

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This DP-300 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 DP-300 exam.