PL-300 Exam Preparation Material | Microsoft Power BI Data Analyst

Prepare for the PL-300 with reliable study materials, practice questions, and key exam insights.

Prepare for the PL-300 Microsoft Power BI Data Analyst exam with CertQueen's independently developed study resources. Review important concepts, practice scenario-based questions, and use clear explanations to identify areas that require further study.

Question#1

You create the following step by using Power Query Editor.
= Table.ReplaceValue(SalesLT_Address,"1318","1319",Replacer.ReplaceText,{"AddressLine1"})
A row has a value of 21318 Lasalle Street in the AddressLine1 column.
What will the value be when the step is applied?

A. 1318
B. 1319
C. 21318 Lasalle Street
D. 21319 Lasalle Street

Explanation:
Example:
Replace the text "ur" with the text "or" in the table.



Reference: https://docs.microsoft.com/en-us/powerquery-m/table-replacevalue

Question#2

You have a Power B1 dataset named Finance that is hosted in a Power B1 workspace.
The finance team at your company is NOT currently a member of any Power B1 workspace roles.
You need to enable the finance team to use Microsoft Excel to analyze the Finance dataset.
What should you do?

A. Create a row-level security (RLS) role and add the finance team to the role as members.
B. Provide an Excel workbook that is connected to the Finance dataset.
C. Grant the finance team write permissions to the Finance dataset.
D. Grant the finance team build permissions to the Finance dataset.

Question#3

You are building a Power Bl report that uses data from an Azure SQL database named erp1.
You Import the following tables.



You need to perform the following analyses:
• Orders sold over time that include a measure of the total order value
• Orders by attributes of products sold
The solution must minimize update times when interacting with visuals in the report.
What should you do first?

A. From Power Query, merge the Orders query and the Order Line Hems query.
B. Calculate the count of orders per product by using a DAX function.
C. Create a calculated column that adds a list of product categories to the Orders table by using a DAX function.
D. From Power Query, merge the Order Line Items query and the Products query.

Explanation:
https://www.sqlbi.com/articles/header-detail-vs-star-schema-models-in-tabular-and-power-bi/

Question#4

You have a Microsoft Power BI data model that contains three tables named Orders, Date, and City.
There is a one-to-many relationship between Date and Orders and between City and Orders.
The model contains two row-level security (RLS) roles named Role1 and Role2. Role1 contains the following filter.
City[State Province] = "Kentucky"
Role2 contains the following filter.
Date[Calendar Year] = 2020
If a user is a member of both Role1 and Role2, what data will they see in a report that uses the model?

A. The user will see data for which the State Province value is Kentucky and the Calendar Year is 2020.
B. The user will see data for which the State Province value is Kentucky or the Calendar Year is 2020.
C. The user will see only data for which the State Province value is Kentucky.
D. The user will receive an error and will not be able to see the data in the report.

Explanation:
When a report user is assigned to multiple roles, RLS filters become additive. It means report users can see table rows that represent the union of those filters.
Reference: https://docs.microsoft.com/en-us/power-bi/guidance/rls-guidance

Question#5

HOTSPOT
You have two Azure SQL databases that contain the same tables and columns.
For each database, you create a query that retrieves data from a table named Customers.
You need to combine the Customer tables into a single table. The solution must minimize the size of the data model and support scheduled refresh in powerbi.com.
What should you do? To answer, select the appropriate options in the answer area. NOTE: Each correct selection is worth one point.


A. 

Explanation:
Box 1: Append Queries as New.
There are two primary ways of combining queries: merging and appending.
When you have one or more columns that you’d like to add to another query, you merge the queries.
When you have additional rows of data that you’d like to add to an existing query, you append the query.
Box 2: Disable loading the query to the data model
For every query that loads into model memory will be consumed. and Memory is our asset in the Model, less memory consumption leads to better performance in most of the cases. The best approach is to disable loading.
Reference:
https://docs.microsoft.com/en-us/power-query/append-queries
https://community.powerbi.com/t5/Power-Query/Append-vs-Append-as-new-for-performance/td-p/1822710

Exam Code: PL-300
Q & A: 464 Q&As         Updated:  Oct 18,2026

 

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What This PL-300 Study Resource Helps You Do

Review Key Concepts

Review the technologies, products, processes, and practical skills covered by the current PL-300 exam objectives.

Practice Scenario-Based Questions

Work through independently developed questions designed to strengthen your understanding of technical scenarios and decision-making.

Identify Knowledge Gaps

Use your results and the provided explanations to find weaker areas and focus your study more effectively.

How to Use This PL-300 Preparation Material

Review the Exam Scope

Start by reviewing the topics covered by the PL-300 exam. Compare them with the official exam objectives to understand the required technologies, operational tasks, and practical skills, then identify the areas that deserve the most attention.

Practice Independently

Complete a focused set of practice questions for each topic. On your first attempt, avoid referring to notes, answers, or other study resources so that you can evaluate your current understanding more accurately.

Study the Explanations

Review the answers and explanations after completing each practice session. Understand why the correct option is appropriate for the given scenario and why the other options may be incorrect or less suitable.

Close Knowledge Gaps

Keep track of incorrect answers, unfamiliar concepts, and weaker knowledge areas. Review these topics using official documentation and practical experience, then answer the related questions again to reinforce your understanding and monitor your progress.

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Exam Code: PL-300
Q & A: 464 Q&As
Updated:  Oct 18,2026

 

 Access Complete PL-300 Preparation Material