The correct answer is that John will see Sales rows where Region is 'West' and Manager is 'john@contoso.com', and Targets rows where Region is 'West'. This is because when multiple row-level security (RLS) rules are defined on the same table, Power BI combines them using AND logic, not OR logic. In the JSON, two separate filters apply to the Sales table—one restricting Region to 'West' and another restricting Manager to 'john@contoso.com'—so John only sees rows that satisfy both conditions simultaneously. For the Targets table, only the single Region filter applies. On the PL-300 exam, this concept frequently appears in scenario-based questions where candidates must determine which rows a user sees after multiple RLS rules are applied; the common trap is assuming rules are additive with OR. Remember the memory tip: "AND narrows, OR widens"—with AND, each additional rule further restricts the data, so John sees only the intersection of all rule conditions.
PL-300 Model the data Practice Question
This PL-300 practice question tests your understanding of model the data. Read the scenario carefully and evaluate each option against the stated constraints before committing to an answer. 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.
Refer to the exhibit. You have defined row-level security (RLS) in a Power BI semantic model using Role-level security. The JSON shows three rules for the 'Sales' and 'Targets' tables. The user 'john@contoso.com' belongs to this role. John's manager column in the Sales table has the value 'john@contoso.com'. What data will John see when he queries the model?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Sales rows where Region is 'West' and Manager is 'john@contoso.com'; Targets rows where Region is 'West'.
Option A is correct because RLS rules are combined with AND logic. John will see only Sales rows where Region is 'West' AND Manager is 'john@contoso.com'. For Targets, only rows with Region 'West'. Option B is incorrect because OR is not used. Option C is incorrect because both rules on Sales apply. Option D is incorrect because all rules apply.
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.
✓
Sales rows where Region is 'West' and Manager is 'john@contoso.com'; Targets rows where Region is 'West'.
Why this is correct
Both filters on Sales are applied with AND.
Related concept
Read the scenario before looking for a memorised answer.
✗
All Sales and Targets data because John is a manager.
Why it's wrong here
RLS filters are applied regardless of user role.
✗
Sales rows where Region is 'West' OR Manager is 'john@contoso.com'; Targets rows where Region is 'West'.
Why it's wrong here
RLS uses AND, not OR.
✗
Only Sales rows where Manager is 'john@contoso.com'; no Targets restriction.
Why it's wrong here
The Region filter on Sales also applies.
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 PL-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.
Model the data — This question tests Model the data — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Sales rows where Region is 'West' and Manager is 'john@contoso.com'; Targets rows where Region is 'West'. — Option A is correct because RLS rules are combined with AND logic. John will see only Sales rows where Region is 'West' AND Manager is 'john@contoso.com'. For Targets, only rows with Region 'West'. Option B is incorrect because OR is not used. Option C is incorrect because both rules on Sales apply. Option D is incorrect because all rules apply.
What should I do if I get this PL-300 question wrong?
Identify which PL-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.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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Question Discussion
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