- A
Q&A features to restrict natural language queries.
Why wrong: Q&A is not a security feature.
- B
Row-level security (RLS) with DAX filter expressions.
RLS filters rows based on user identity.
- C
Object-level security (OLS) to hide tables.
Why wrong: OLS hides objects, not filters rows.
- D
Data lineage view to control access.
Why wrong: Data lineage is for impact analysis.
Question 693 of 966
PL-300 Manage and secure Power BI Practice Question
This PL-300 practice question tests your understanding of manage and secure power bi. 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.
You have a Power BI report that uses a DirectQuery dataset. You need to ensure that users see only the data relevant to their department. What should you implement?
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
✓
Row-level security (RLS) with DAX filter expressions.
Row-level security (RLS) is the correct approach because it filters data at the query level based on the user's identity. In a DirectQuery model, RLS translates DAX filter expressions into source queries, ensuring that each user only sees rows relevant to their department without duplicating reports or datasets.
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.
- ✗
Q&A features to restrict natural language queries.
Why it's wrong here
Q&A is not a security feature.
- ✓
Row-level security (RLS) with DAX filter expressions.
Why this is correct
RLS filters rows based on user identity.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Object-level security (OLS) to hide tables.
Why it's wrong here
OLS hides objects, not filters rows.
- ✗
Data lineage view to control access.
Why it's wrong here
Data lineage is for impact analysis.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates confuse row-level security (RLS) with object-level security (OLS), thinking OLS can filter rows when it only hides entire objects like tables or columns.
Detailed technical explanation
How to think about this question
Under the hood, RLS in DirectQuery works by appending a WHERE clause to every query sent to the source, using the USERNAME() or USERPRINCIPALNAME() DAX function to dynamically filter rows. A subtle behavior is that RLS roles must be tested with the 'View as Roles' feature in Power BI Desktop, and if the source is a SQL Server, the filter is pushed down as a native query predicate, preserving performance. In a real-world scenario, a sales manager might see only their region's data, while the VP sees all regions, all enforced by the same RLS role with different DAX filters.
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.
What to study next
Got this wrong? Here's your next step.
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FAQ
Questions learners often ask
What does this PL-300 question test?
Manage and secure Power BI — This question tests Manage and secure Power BI — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Row-level security (RLS) with DAX filter expressions. — Row-level security (RLS) is the correct approach because it filters data at the query level based on the user's identity. In a DirectQuery model, RLS translates DAX filter expressions into source queries, ensuring that each user only sees rows relevant to their department without duplicating reports or datasets.
What should I do if I get this PL-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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Last reviewed: Jun 24, 2026
This PL-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 PL-300 exam.
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