The answer is to use Power Query to combine data from all sources into a single dataset, then schedule a daily refresh in the Power BI service. This approach is correct because Power Query natively handles diverse source types—like SQL Server, Excel, and SharePoint—by transforming and merging them into one unified data model, which can then be refreshed as a single scheduled operation in the service. On the PL-300 exam, this tests your understanding of the "Combine Multiple Data Sources Refresh Strategy," often appearing as a scenario where you must choose between live connections, duplicate imports, or unsupported sources. The common trap is selecting separate refreshes for each source, which duplicates work and complicates dependencies, or assuming Excel Online supports direct refresh. Memory tip: think "One Query to Rule Them All"—combine everything in Power Query first, then schedule one refresh to keep your report current.
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 modeling data from multiple sources: a SQL Server database for sales, an Excel file for budget, and a SharePoint list for product targets. You need to combine these into a single Power BI report. What is the recommended approach for handling data refresh?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Use Power Query to combine data from all sources into a single dataset, then schedule a daily refresh in the Power BI service.
Option D is correct because using Power Query to combine data and scheduling a single refresh is efficient. Option A is wrong because live connections are not possible with all sources. Option B is wrong because it duplicates work. Option C is wrong because Excel Online is not supported for direct refresh.
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.
✗
Import each source into separate Power BI Desktop files and manually update.
Why it's wrong here
Manual updates are error-prone and not scalable.
✗
Use Excel Online as the single source and import all data into it first.
Why it's wrong here
Excel Online is not a suitable data integration tool.
✓
Use Power Query to combine data from all sources into a single dataset, then schedule a daily refresh in the Power BI service.
Why this is correct
Power Query can merge data from different sources, and a single refresh is efficient.
Related concept
Read the scenario before looking for a memorised answer.
✗
Create separate datasets for each source and use composite models with DirectQuery.
Why it's wrong here
Composite models add complexity and may not support all sources.
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: Use Power Query to combine data from all sources into a single dataset, then schedule a daily refresh in the Power BI service. — Option D is correct because using Power Query to combine data and scheduling a single refresh is efficient. Option A is wrong because live connections are not possible with all sources. Option B is wrong because it duplicates work. Option C is wrong because Excel Online is not supported for direct refresh.
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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