The answer is to mark the Date table as a date table and set the 'Sort by Column' property for Month to a numeric month number column. Marking the Date table ensures Power BI recognizes a contiguous date range, which is essential for time intelligence and proper slicer filter propagation from year down to month. Without this, the slicer filter for year may fail to correctly restrict the line chart to only the selected year’s months. The second action, sorting the month name column by a numeric month number, forces the x-axis to display months in chronological order rather than alphabetically. On the PL-300 exam, this question tests your understanding of date table setup and column sorting—two common pitfalls where candidates forget to mark the date table or rely on alphabetical month order. A useful memory tip: “Mark the date, sort the month” to remember both actions are required for chronological month display when filtered by a slicer.
PL-300 Visualize and analyze the data Practice Question
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.
A Power BI report includes a slicer for 'Year' and a line chart showing monthly sales. The report designer wants to ensure that when a user selects a year in the slicer, the line chart shows only the months of that year, with month names on the x-axis sorted chronologically. Which TWO actions must be taken?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Mark the Date table as a date table in the model.
Option A is correct because marking the Date table as a date table ensures that Power BI recognizes the table as containing a contiguous date range, which is required for time intelligence functions and proper date-based filtering. When a slicer filters by Year, the line chart must respect the date relationship; without a marked date table, the filter may not propagate correctly to the month level, and the x-axis may not display months in chronological order.
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.
✓
Mark the Date table as a date table in the model.
Why this is correct
Marking the table as a date table enables time intelligence functions and ensures proper date behavior.
Related concept
Read the scenario before looking for a memorised answer.
✗
Create a date hierarchy with Year and Month.
Why it's wrong here
A date hierarchy is not necessary; you can use separate columns for Year and Month.
✗
Set the slicer to 'Single select' mode.
Why it's wrong here
Single select is not required; the slicer works in multi-select or single-select mode.
✓
Set the 'Sort by Column' property for Month to a numeric month number column.
Why this is correct
This ensures months are sorted chronologically rather than alphabetically.
Related concept
Read the scenario before looking for a memorised answer.
✗
Hide the Month column in the Date table.
Why it's wrong here
Hiding the Month column would prevent it from being used in the line chart.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often think creating a date hierarchy (Option B) automatically sorts months chronologically, but hierarchies only organize fields for drill-down, not sort order; the 'Sort by Column' property is the specific mechanism required for chronological month sorting.
Detailed technical explanation
How to think about this question
Under the hood, the 'Sort by Column' property in Power BI uses the underlying numeric column to define the sort order of a text column; without this, months like 'April' would sort alphabetically (e.g., April, August, December) instead of chronologically. In real-world scenarios, date tables often have separate MonthName and MonthNumber columns, and failing to set the sort order is a common cause of misordered axis labels, especially when using slicers to filter by year.
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 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
Got this wrong? Here's your next step.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Visualize and analyze the data — This question tests Visualize and analyze the data — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Mark the Date table as a date table in the model. — Option A is correct because marking the Date table as a date table ensures that Power BI recognizes the table as containing a contiguous date range, which is required for time intelligence functions and proper date-based filtering. When a slicer filters by Year, the line chart must respect the date relationship; without a marked date table, the filter may not propagate correctly to the month level, and the x-axis may not display months in chronological order.
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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Question Discussion
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