Question 52 of 966
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PL-300 Prepare the data Practice Question

This PL-300 practice question tests your understanding of prepare 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 using Power Query to combine data from multiple Excel files stored in a SharePoint Online document library. Each file has the same structure. You need to ensure that the query automatically includes new files added to the library without manual updates. Which approach should you use?

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

Use 'Get Data from SharePoint Online Folder' and then combine files using 'Combine & Transform Data'.

Option C is correct because the 'Get Data from SharePoint Online Folder' connector in Power Query retrieves metadata for all files in the folder, and the 'Combine & Transform Data' action automatically applies a sample file transformation to all files. When new files are added to the library, refreshing the query will include them without manual intervention, as the connector dynamically reads the folder contents.

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.

  • Use 'Get Data from Excel' and specify each file path manually.

    Why it's wrong here

    Manual specification does not automatically include new files.

  • Use 'Get Data from SQL Server' and write a query to read files.

    Why it's wrong here

    SQL Server cannot directly read Excel files from SharePoint.

  • Use 'Get Data from SharePoint Online Folder' and then combine files using 'Combine & Transform Data'.

    Why this is correct

    This approach dynamically lists all files and can be refreshed to include new files.

    Related concept

    Read the scenario before looking for a memorised answer.

  • Use 'Get Data from SharePoint Online List' and then expand the file content.

    Why it's wrong here

    SharePoint Online List connector is for list data, not files.

Common exam traps

Common exam trap: answer the scenario, not the keyword

The trap here is that candidates confuse 'SharePoint Online Folder' with 'SharePoint Online List', thinking that a list can also combine files, but lists store metadata and require additional expansion steps that do not automatically handle new files with the same structure.

Detailed technical explanation

How to think about this question

Under the hood, the SharePoint Online Folder connector uses the SharePoint REST API to enumerate files in the folder, returning a table with columns like Name, Extension, and Content. The 'Combine & Transform Data' step leverages Power Query's 'Parameter1' sample file mechanism, which applies the same transformation (e.g., promoting headers, changing data types) to all files in the folder. In real-world scenarios, this approach is ideal for periodic data ingestion from shared directories, but note that it requires the folder to contain only files with identical structure; otherwise, the combine step may fail or produce inconsistent results.

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?

Prepare the data — This question tests Prepare the data — Read the scenario before looking for a memorised answer..

What is the correct answer to this question?

The correct answer is: Use 'Get Data from SharePoint Online Folder' and then combine files using 'Combine & Transform Data'. — Option C is correct because the 'Get Data from SharePoint Online Folder' connector in Power Query retrieves metadata for all files in the folder, and the 'Combine & Transform Data' action automatically applies a sample file transformation to all files. When new files are added to the library, refreshing the query will include them without manual intervention, as the connector dynamically reads the folder contents.

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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Last reviewed: Jun 24, 2026

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