Question 636 of 963

Implement a secure environment →easyMultiple SelectObjective-mapped

DP-300 Implement a secure environment Practice Question

This DP-300 practice question tests your understanding of implement a secure environment. 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 a database administrator for a startup that uses Azure SQL Database to run an e-commerce application. The application uses a service principal (Microsoft Entra ID application) to authenticate to the database. You need to grant the service principal the ability to read data from all tables in the 'sales' schema. Which THREE actions should you take?

A
Grant CONTROL permission on the database to the user
Why wrong: CONTROL provides full control over the database, which is excessive for read-only access.
B
Add the user to the 'sales' database role
Why wrong: 'sales' is a schema, not a database role. This would cause an error.
C
Create a database user for the service principal using the CREATE USER statement with the FROM EXTERNAL PROVIDER option
This maps the Microsoft Entra service principal to a database user.
D
Grant SELECT on the 'sales' schema to the user
This grants SELECT permission on all tables in the 'sales' schema.
E
Add the user to the 'db_datareader' fixed database role
The db_datareader role grants read access to all tables in the database.

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

✓

Create a database user for the service principal using the CREATE USER statement with the FROM EXTERNAL PROVIDER option

Option C is correct because a service principal (Microsoft Entra ID application) must have a corresponding database user created using the CREATE USER statement with the FROM EXTERNAL PROVIDER clause. This maps the external identity to a database principal, enabling authentication and authorization within Azure SQL Database.

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.

✗
Grant CONTROL permission on the database to the user
Why it's wrong here
CONTROL provides full control over the database, which is excessive for read-only access.
✗
Add the user to the 'sales' database role
Why it's wrong here
'sales' is a schema, not a database role. This would cause an error.
✓
Create a database user for the service principal using the CREATE USER statement with the FROM EXTERNAL PROVIDER option
Why this is correct
This maps the Microsoft Entra service principal to a database user.
Related concept
Read the scenario before looking for a memorised answer.
✓
Grant SELECT on the 'sales' schema to the user
Why this is correct
This grants SELECT permission on all tables in the 'sales' schema.
Related concept
Read the scenario before looking for a memorised answer.
✓
Add the user to the 'db_datareader' fixed database role
Why this is correct
The db_datareader role grants read access to all tables in the database.
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 confuse schemas with database roles, leading them to incorrectly select 'Add the user to the sales database role' (Option B) when no such role exists, or they over-provision by granting CONTROL permission (Option A) instead of using the principle of least privilege.

Detailed technical explanation

How to think about this question

Under the hood, Azure SQL Database uses contained database authentication for Microsoft Entra ID principals. The CREATE USER ... FROM EXTERNAL PROVIDER statement creates a database user that references the service principal's object ID in Microsoft Entra ID. Once created, permissions are managed via SQL Server's role-based access control (RBAC) at the database level, where schema-level permissions (e.g., GRANT SELECT ON SCHEMA::sales) are independent of fixed database roles like db_datareader, which grant read access to all user tables across all schemas.

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: Create a database user for the service principal using the CREATE USER statement with the FROM EXTERNAL PROVIDER option — Option C is correct because a service principal (Microsoft Entra ID application) must have a corresponding database user created using the CREATE USER statement with the FROM EXTERNAL PROVIDER clause. This maps the external identity to a database principal, enabling authentication and authorization within Azure SQL Database.

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.

What is the key concept behind this question?

Read the scenario before looking for a memorised answer.

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