Microsoft Power BI Data Analyst (PL-300) - Microsoft

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Sample PL-300 Exam Questions & Explanations

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Question #1 Verified Q&A
You need to address the data concerns before creating the data model. What should you do in Power Query Editor?
A Transform the sales_amount column to replace negative values with 0.
B Select Column distribution.
C Select the sales_amount column and apply a number filter.
D Select Column profile, and then select the sales_amount column.
Correct Answer: Select Column profile, and then select the sales_amount column.
Question #2 Verified Q&A
You need to create a calculated column to display the month based on the reporting requirements.<br />
<br />
Which DAX expression should you use?
A FORMAT('Date' [date_id], "MMM YYYY")
B FORMAT('Date'[date], "MMM YYYY")
C FORMAT('Date' [date], "M YY")
D FORMAT('Date'[date_id], "MMM") & "" & FORMAT('Date'[year], "#")
Correct Answer: FORMAT('Date'[date], "MMM YYYY")
Question #3 Verified Q&A
You need to create the required relationship for the executive's visual. What should you do before you can create the relationship?
A Change the data type of sales [region_id] to Decimal Number.
B Change the data type of Sales[region_id] to Whole Number.
C Change the data type of sales[sales_id] to Text.
D In the Sales table, add a measure for sum(sales_amount).
Correct Answer: Change the data type of Sales[region_id] to Whole Number.
Explanation:
Scenario: Executives require a visual that shows sales by region. Need to change the sales_id column from Varchar to Whole Number (Integer).
Question #4 Verified Q&A
What should you create to meet the reporting requirements of the sales department? A.
A a measure that uses a formula of SUM (Sales [sales_id]) a calculated column that use a formula of COUNTA(sales [sales_id]) a measure that uses a formula of COUNTROWS (Sales) a calculated column that uses a formula of SUM (Sales [sales_id])
B C.
Explanation:
The sale department requires reports that contain the number of sales transactions. The COUNTROWS function counts the number of rows in the specified table, or in a table defined by an expression.<br />
<br />
Reference: https://docs.microsoft.com/en-us/dax/countrows-function-dax
Question #5 Verified Q&A
You need to create a relationship between the Weekly_Returns table and the Date table to meet the reporting requirements of the regional managers. What should you do?
A In the Weekly.Returns table, create a new calculated column named date-id in a format of yyyymmdd and use the calculated column to create a relationship to the Date table.
B Create a new table based on the Date table where date-id is unique, and then create a many-to- many relationship to Weekly_Return.
C Add the Weekly_Returns data to the Sales table by using related DAX functions.
Correct Answer: In the Weekly.Returns table, create a new calculated column named date-id in a format of yyyymmdd and use the calculated column to create a relationship to the Date table.
Explanation:
Scenario: Region managers require a visual to analyze weekly sales and returns. To relate the two tables we need a common column.

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Our PL-300 (Microsoft Power BI Data Analyst) practice question bank currently includes 464 verified questions with comprehensive explanations.
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The PL-300 (Microsoft Power BI Data Analyst) question bank is built to mirror the real exam's format and topics, with detailed explanations for every answer so you understand the reasoning — not just memorize responses.
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