Question 899 of 963

Implement a secure environment →hardMultiple ChoiceObjective-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 technology company that uses Azure SQL Database to support a multi-tenant SaaS application. Each tenant has its own database. The security team requires that users from one tenant should never be able to access data from another tenant, even if a user's credentials are compromised. You need to implement a solution that enforces tenant isolation at the database level. The solution must be transparent to the application and must not require application code changes. What should you do?

Clue words in this question

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

Clue: "never"
Why it matters: Absolute qualifier. True only if the statement has zero exceptions — be cautious of options that seem obvious but break down in edge cases.

A
Use Always Encrypted to encrypt each tenant's data with a separate column encryption key
Why wrong: Always Encrypted encrypts data at the column level, but it does not prevent a user from accessing another tenant's data if they have appropriate permissions. It does not enforce tenant isolation.
B
Create a contained database user for each tenant in their respective database and ensure that cross-database queries are not allowed by configuring server-level firewall rules to block access between databases
Correct. Contained database users per tenant in their own database, combined with firewall rules that block cross-database queries, ensure that each user can only access their own tenant's database.
C
Implement elastic queries to query across all tenant databases and use a view to filter by tenant ID
Why wrong: Elastic queries allow querying across multiple databases, which would enable cross-tenant access if a user somehow obtains credentials. This increases the risk of tenant data leakage.
D
Create a linked server between all tenant databases and use a security policy to restrict access
Why wrong: Linked servers enable cross-database queries and do not inherently provide tenant isolation. A security policy (RLS) is applied within a database, not across databases, so this does not prevent cross-tenant access.

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 contained database user for each tenant in their respective database and ensure that cross-database queries are not allowed by configuring server-level firewall rules to block access between databases

Option B is correct. Each tenant has its own database, and by creating contained database users specific to each tenant and preventing cross-database access through firewall rules or private endpoints, you enforce tenant isolation. Even if credentials are compromised, the attacker can only access the single tenant's database. Option A is incorrect because Always Encrypted protects data at rest and in transit but does not restrict which data a user can query; it does not prevent cross-tenant access. Option C is incorrect because elastic queries are designed to query across databases, which would allow cross-tenant access if not carefully restricted. Option D is incorrect because a linked server enables cross-database queries, increasing the risk of cross-tenant access.

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.

✗
Use Always Encrypted to encrypt each tenant's data with a separate column encryption key
Why it's wrong here
Always Encrypted encrypts data at the column level, but it does not prevent a user from accessing another tenant's data if they have appropriate permissions. It does not enforce tenant isolation.
✓
Create a contained database user for each tenant in their respective database and ensure that cross-database queries are not allowed by configuring server-level firewall rules to block access between databases
Why this is correct
Correct. Contained database users per tenant in their own database, combined with firewall rules that block cross-database queries, ensure that each user can only access their own tenant's database.
Clue confirmation
The clue word "never" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
✗
Implement elastic queries to query across all tenant databases and use a view to filter by tenant ID
Why it's wrong here
Elastic queries allow querying across multiple databases, which would enable cross-tenant access if a user somehow obtains credentials. This increases the risk of tenant data leakage.
✗
Create a linked server between all tenant databases and use a security policy to restrict access
Why it's wrong here
Linked servers enable cross-database queries and do not inherently provide tenant isolation. A security policy (RLS) is applied within a database, not across databases, so this does not prevent cross-tenant access.

Common exam traps

Common exam trap: answer the scenario, not the keyword

Many certification questions include familiar terms but test a specific constraint. Read the exact wording before choosing an answer that is generally true but wrong for this case.

Detailed technical explanation

How to think about this question

This question should be treated as a scenario, not a definition check. Identify the problem, the constraint and the best action. Then compare each option against those facts.

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.
Use explanations to understand the rule behind the answer.

TExam Day Tips

Underline the problem statement mentally.
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 DP-300 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.

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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 contained database user for each tenant in their respective database and ensure that cross-database queries are not allowed by configuring server-level firewall rules to block access between databases — Option B is correct. Each tenant has its own database, and by creating contained database users specific to each tenant and preventing cross-database access through firewall rules or private endpoints, you enforce tenant isolation. Even if credentials are compromised, the attacker can only access the single tenant's database. Option A is incorrect because Always Encrypted protects data at rest and in transit but does not restrict which data a user can query; it does not prevent cross-tenant access. Option C is incorrect because elastic queries are designed to query across databases, which would allow cross-tenant access if not carefully restricted. Option D is incorrect because a linked server enables cross-database queries, increasing the risk of cross-tenant access.

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

Are there clue words in this question I should notice?

Yes — watch for: "never". Absolute qualifier. True only if the statement has zero exceptions — be cautious of options that seem obvious but break down in edge cases.

What is the key concept behind this question?

Read the scenario before looking for a memorised answer.

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