Quick Answer
The answer is to enable row and column subtotals. This is correct because the expand and collapse functionality in a Power BI matrix visual relies on a defined hierarchy in the rows or columns, and the subtotals feature must be active for the plus/minus icons to appear, allowing users to toggle between aggregated and detailed data. On the PL-300 exam, this concept tests your understanding of matrix visual behavior versus other navigation features; a common trap is confusing expand/collapse with drill-down (which changes the hierarchy level) or drill-through (which navigates to a different page). Remember that subtotals are the gatekeeper for expand/collapse—if they are turned off, the hierarchy icons disappear. A useful memory tip: "Subtotals unlock the plus signs."
This PL-300 practice question tests your understanding of visualize and analyze 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.
You have a Power BI report with a matrix visual showing sales by region and product category. You want to allow users to expand and collapse groups. Which feature should you enable?
Page tooltips
Why wrong: Tooltips provide additional info on hover.
Drill-down mode
Why wrong: Drill-down changes level, not expand/collapse within same hierarchy.
Drill-through
Why wrong: Drill-through navigates to a detail page.
Row and column subtotals
Subt totals enable expand/collapse for hierarchy levels.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
Row and column subtotals
Option D is correct because row subtotals and column subtotals are enabled by default, but the matrix visual supports expand/collapse when the hierarchy is present. Option A is wrong because drill-down is different. Option B is wrong because drill-through navigates to another page. Option C is wrong because tooltips are for hover information.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
For each option: why learners choose it and why it is or isn't the right answer here.
Page tooltips
Why it's wrong here
Tooltips provide additional info on hover.
Drill-down mode
Why it's wrong here
Drill-down changes level, not expand/collapse within same hierarchy.
Drill-through
Why it's wrong here
Drill-through navigates to a detail page.
Row and column subtotals
Why this is correct
Subt totals enable expand/collapse for hierarchy levels.
Related concept
Read the scenario before looking for a memorised answer.
Common exam traps
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
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.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
A cloud solutions architect for a retail company is evaluating services for a new workload. The correct answer here reflects best practice for the specific scenario described — not a general cloud recommendation. Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option. Cloud exam questions reward reading the constraint carefully: the same technology can be right or wrong depending on the use case.
What to study next
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.
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FAQ
Visualize and analyze the data — This question tests Visualize and analyze the data — Read the scenario before looking for a memorised answer..
The correct answer is: Row and column subtotals — Option D is correct because row subtotals and column subtotals are enabled by default, but the matrix visual supports expand/collapse when the hierarchy is present. Option A is wrong because drill-down is different. Option B is wrong because drill-through navigates to another page. Option C is wrong because tooltips are for hover information.
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.
Read the scenario before looking for a memorised answer.
About these practice questions
Courseiva creates original exam-style practice questions with explanations and wrong-answer analysis. It does not publish real exam questions, exam dumps, or protected exam content. Learn why practice questions differ from exam dumps →
Same concept, more angles
These questions test the same concept from different angles. Work through them to make sure you can recognise it however the exam phrases it.
Variation 1. You have a Power BI report with a matrix visual showing sales by year and quarter. Users want to drill down from year to quarter and expand back up. Which feature should you enable?
mediumWhy C: Option A is correct because the drill-down mode in a matrix visual allows hierarchical navigation. Option B is wrong because bookmarks do not provide interactive drill-down. Option C is wrong because the drill-through feature navigates to a different page. Option D is wrong because tooltips do not enable drill-down.
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Last reviewed: Jun 21, 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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