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 importing a CSV file into Power BI. The file contains a date column with values in the format 'MM/dd/yyyy'. However, Power Query interprets the dates as 'dd/MM/yyyy'. What should you do to correctly parse the dates?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Use the 'Using Locale' option in the Change Type step to select the appropriate locale (e.g., English (United States))
Option B is correct because Power Query's 'Using Locale' option in the Change Type step allows you to specify the regional format of the source data (e.g., English (United States) for 'MM/dd/yyyy'). This overrides Power Query's default locale-based interpretation, ensuring dates are parsed correctly without altering the data or system settings.
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.
✗
Change the system region settings of the Power BI service to US
Why it's wrong here
This affects the entire service and is not necessary for a single file.
✓
Use the 'Using Locale' option in the Change Type step to select the appropriate locale (e.g., English (United States))
Why this is correct
Using locale allows Power Query to interpret dates correctly based on regional settings.
Related concept
Read the scenario before looking for a memorised answer.
✗
Change the column data type to Text and then manually replace separators
Why it's wrong here
This does not fix the date interpretation; you need to specify the correct format.
✗
Split the column into day, month, and year, then combine them in the correct order
Why it's wrong here
This is a workaround but not the most efficient; using locale is simpler.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often assume changing system region settings (Option A) will fix the issue, but Power Query's locale handling is independent of the Power BI service region, and the correct approach is to use the 'Using Locale' option within the query editor.
Detailed technical explanation
How to think about this question
Power Query uses the system locale of the environment (e.g., Windows regional settings) to infer date formats by default, which can cause mismatches when the source file uses a different locale. The 'Using Locale' option in the Change Type step leverages the .NET globalization library to apply a specific CultureInfo (e.g., 'en-US') for parsing, ensuring that 'MM/dd/yyyy' is interpreted as month/day/year. This is particularly important in multi-region deployments where source files may come from different locales.
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.
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 the 'Using Locale' option in the Change Type step to select the appropriate locale (e.g., English (United States)) — Option B is correct because Power Query's 'Using Locale' option in the Change Type step allows you to specify the regional format of the source data (e.g., English (United States) for 'MM/dd/yyyy'). This overrides Power Query's default locale-based interpretation, ensuring dates are parsed correctly without altering the data or system settings.
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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