The correct answer is to grant permissions at the object level, such as SELECT on specific tables, rather than at the schema level. This directly enforces least privilege database access by ensuring users only see the exact data they need, avoiding the broad access that schema-level grants provide. For contained users, which are authenticated directly within the database without relying on server-level logins, this granular approach limits the blast radius of a compromised credential to a single database. On the DP-300 exam, this concept tests your understanding of how custom roles and object permissions work together to isolate access; a common trap is choosing schema-level permissions for simplicity, which violates least privilege. Remember the memory tip: "Object, not schema—limit the data, limit the drama."
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 manage an Azure SQL Database that is accessed by several applications. You need to implement the principle of least privilege for database access. Which three actions should you take? (Choose three.)
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
✓
Create contained database users instead of server-level logins.
Contained database users are authenticated directly within the database, independent of the server-level logins. This aligns with the principle of least privilege by avoiding the need for server-level permissions, which would grant broader access across the server. In Azure SQL Database, contained users are the recommended approach for database-level access control, as they limit the blast radius of a compromised credential to a single 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.
✓
Create contained database users instead of server-level logins.
Why this is correct
Contained users reduce server-level privilege.
Clue confirmation
The clue word "least" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
✓
Assign users to custom database roles with specific permissions.
Why this is correct
Custom roles allow fine-grained access control.
Clue confirmation
The clue word "least" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
✗
Add users to the db_datareader role.
Why it's wrong here
db_datareader gives read access to all tables, which may be too broad.
✗
Configure firewall rules to restrict IP addresses.
Why it's wrong here
Firewall rules control network access, not database permissions.
✓
Grant permissions at the object level (e.g., SELECT on specific tables) rather than at the schema level.
The clue word "least" 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 may confuse network security controls (firewall rules) with database access controls, or assume that built-in roles like db_datareader are acceptable for least privilege, when in fact they grant excessive permissions.
Detailed technical explanation
How to think about this question
Contained database users use the database's own authentication (user name and password or Azure AD identity) and are stored in the database's sys.database_principals catalog view. This eliminates the dependency on server-level logins stored in master, reducing the attack surface. In Azure SQL Database, server-level logins are only available for the master database, making contained users the only viable option for user databases in a managed instance.
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.
Related glossary terms
Concepts from this question explained
These glossary pages explain the core terms tested in this DP-300 question in full detail.
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 contained database users instead of server-level logins. — Contained database users are authenticated directly within the database, independent of the server-level logins. This aligns with the principle of least privilege by avoiding the need for server-level permissions, which would grant broader access across the server. In Azure SQL Database, contained users are the recommended approach for database-level access control, as they limit the blast radius of a compromised credential to a single 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.
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?
Read the scenario before looking for a memorised answer.
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