- A
Create a separate fiscal date table and relate it to the fact table using the FiscalYear column.
Why wrong: Adding another dimension table increases complexity unnecessarily.
- B
Use the built-in DATESYTD function directly on the OrderDate column from the fact table.
Why wrong: DATESYTD requires a date dimension marked as a date table to work correctly.
- C
Create a composite key using FiscalYear and Quarter columns in the Date table and relate to the fact table.
Why wrong: Composite keys are not recommended for date dimensions; a single date column is standard.
- D
Mark the Date table as a date table using the Calendar icon in the Table tools ribbon and set a relationship on the Date column.
This enables time intelligence functions and ensures proper filtering.
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.
You are building a star schema model in Power BI. You have a fact table of sales transactions and dimension tables for Date, Customer, Product, and Store. The Date table contains a column 'FiscalYear' that you want to use for time intelligence calculations. What is the best practice for handling the Date relationship?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue:
"best"Why it matters: Signals that multiple options may be partially correct. Choose the option that most directly solves the exact problem described, not the one that sounds most complete.
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
Mark the Date table as a date table using the Calendar icon in the Table tools ribbon and set a relationship on the Date column.
Option D is correct because marking the Date table as a date table (via the Calendar icon in Table tools) and creating a relationship on the Date column is the best practice for time intelligence in Power BI. This ensures that DAX time intelligence functions (e.g., TOTALYTD, SAMEPERIODLASTYEAR) work correctly by using a single, continuous date column that aligns with the fact table's date column. It also avoids the need for composite keys or separate fiscal tables, maintaining a clean star schema.
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.
- ✗
Create a separate fiscal date table and relate it to the fact table using the FiscalYear column.
Why it's wrong here
Adding another dimension table increases complexity unnecessarily.
- ✗
Use the built-in DATESYTD function directly on the OrderDate column from the fact table.
Why it's wrong here
DATESYTD requires a date dimension marked as a date table to work correctly.
- ✗
Create a composite key using FiscalYear and Quarter columns in the Date table and relate to the fact table.
Why it's wrong here
Composite keys are not recommended for date dimensions; a single date column is standard.
- ✓
Mark the Date table as a date table using the Calendar icon in the Table tools ribbon and set a relationship on the Date column.
Why this is correct
This enables time intelligence functions and ensures proper filtering.
Clue confirmation
The clue word "best" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often think they need a separate fiscal table or composite keys to handle fiscal years, but Power BI's date table marking feature inherently supports fiscal calendars through the 'Mark as Date Table' option and the 'Start of Fiscal Year' setting, making those workarounds unnecessary and incorrect.
Detailed technical explanation
How to think about this question
Under the hood, marking a table as a date table tells Power BI to treat that column as the primary date axis for time intelligence functions, enabling automatic generation of date hierarchies and correct handling of fiscal calendars. A subtle behavior is that if the date table is not marked, DAX functions like TOTALYTD may return incorrect results or require explicit filter arguments. In real-world scenarios, this is critical when using fiscal years that start in a different month (e.g., July), as marking the table allows you to set the fiscal year start month in the model, ensuring all time intelligence calculations align with the business calendar.
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.
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FAQ
Questions learners often ask
What does this PL-300 question test?
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: Mark the Date table as a date table using the Calendar icon in the Table tools ribbon and set a relationship on the Date column. — Option D is correct because marking the Date table as a date table (via the Calendar icon in Table tools) and creating a relationship on the Date column is the best practice for time intelligence in Power BI. This ensures that DAX time intelligence functions (e.g., TOTALYTD, SAMEPERIODLASTYEAR) work correctly by using a single, continuous date column that aligns with the fact table's date column. It also avoids the need for composite keys or separate fiscal tables, maintaining a clean star schema.
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.
Are there clue words in this question I should notice?
Yes — watch for: "best". Signals that multiple options may be partially correct. Choose the option that most directly solves the exact problem described, not the one that sounds most complete.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
About these practice questions
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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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