The answer is using the DAX function CALENDARAUTO() in a calculated table and marking a table as a date table. CALENDARAUTO() is valid because it automatically scans all date columns in your model to determine the necessary date range, generating a continuous set of dates without manual input. Marking a table as a date table is the standard method to designate an existing table—whether imported or created via DAX—as the official date dimension, enabling time intelligence functions. On the PL-300 exam, this question tests your understanding of Power BI’s built-in date table creation workflows versus common traps like assuming a “Create Date Table” button exists in the Modeling tab or that manual typing is a practical method. A frequent mistake is confusing the “Mark as Date Table” option with a generation tool; remember, you must first have a table to mark. Memory tip: “CALENDARAUTO scans, Mark as Date Table assigns”—the first builds the table, the second tells Power BI which one to use.
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.
Which TWO of the following are valid methods to create a date table in Power BI?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Using the 'Mark as Date Table' feature on an existing table with dates.
Option B is correct: using CALENDARAUTO auto-detects date range from model. Option D is correct: marking a table as date table is a standard method. Option A is incorrect because manual typing is not practical. Option C is incorrect because there is no 'Create Date Table' button. Option E is incorrect because there is no 'Generate Date Table' in the modeling tab.
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.
✗
Using the 'Create Date Table' button in the ribbon.
Why it's wrong here
There is no such button; you use Mark as Date Table.
✗
Using the 'Generate Date Table' option in Power Query.
Why it's wrong here
There is no such option; you can create a list of dates in Power Query.
✓
Using the 'Mark as Date Table' feature on an existing table with dates.
Why this is correct
This is a common method.
Related concept
Read the scenario before looking for a memorised answer.
✗
Manually typing dates in Excel and importing.
Why it's wrong here
Manual entry is possible but not a standard method.
✓
Using DAX function CALENDARAUTO() in a calculated table.
Why this is correct
CALENDARAUTO creates a date table automatically.
Related concept
Read the scenario before looking for a memorised answer.
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 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 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: Using the 'Mark as Date Table' feature on an existing table with dates. — Option B is correct: using CALENDARAUTO auto-detects date range from model. Option D is correct: marking a table as date table is a standard method. Option A is incorrect because manual typing is not practical. Option C is incorrect because there is no 'Create Date Table' button. Option E is incorrect because there is no 'Generate Date Table' in the modeling tab.
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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