OD41

24 Oktober 2025

Final Exam: Mastering Power BI Service and Power Query

 

Question:

You are developing a Power BI report with a mobile view in mind. In the mobile layout, you've applied visual filters and report filters to enhance user interactivity. However, when testing the report on a mobile device, you notice that the filters do not seem to be working as expected. What could be a potential reason for this issue, and how can you troubleshoot it?

  • The visual and report filters you applied in the desktop view are not automatically carried over to the mobile view. You need to recreate these filters specifically for the mobile layout

Question
:

Mark, a business analyst, is working on creating a simple paginated report in Power BI, but he encounters an issue with the layout and formatting of the report when he previews it. What troubleshooting steps should Mark typically take to address this issue with the paginated report in Power BI?

Answer D.

  • Review the report's page size and margins in the report design settings

Question
:

John is working on a data integration project in Power BI, and he's using the fuzzy merging feature to match records from two datasets. However, he's encountering an issue where the fuzzy merging does not match as many records as he expects. He suspects that adjusting the similarity threshold might help. What should John do to troubleshoot and potentially improve the fuzzy merging process?

Answer B.

  • Decrease the similarity threshold to allow for looser matching criteria
Question
:

Emily is working on a data analysis project in Power BI and needs to combine data from two tables. She wants to ensure that all records from the left table are included in the result, along with any matching records from the right table. What type of join should Emily use to achieve this in the "Merge Queries" feature of Power BI?

  • Left Outer Join

Question
:

Mark, a data analyst, needs to perform data transformations and dataflows using Power Query within the Microsoft ecosystem. Which Microsoft tool or service should he use for data transformation?

  • Excel for Windows


Question

:

Jessica is a business analyst responsible for creating scorecards to track important metrics in Power BI. However, when she reviews the scorecards, some of the metrics are not displaying the correct values, and the formatting is inconsistent. What troubleshooting steps should Jessica typically take to address these issues when creating scorecards to track metrics in Power BI?

  • Review the data source connections and verify data accuracy for the metrics

Question

:

Maria is working on a data project in Power BI and is experiencing an issue with text manipulation. She has two columns containing text data, and she wants to combine them while ignoring the case sensitivity of the text. However, when she combines the columns, the case sensitivity is retained. What function or approach should Maria use to troubleshoot and achieve case-insensitive text combinations in Power BI?

  • Use the "LOWER" function to convert both columns to lowercase before combining


Question

:

Mark, a Power BI user, has created a report and wants to configure its mobile layout for optimal viewing on the Power BI Mobile App. What steps should Mark typically follow to configure the mobile layout of his report in the Power BI Mobile App effectively?

  • Mark should open the Power BI Mobile App and select the report he wants to configure for mobile layout


Question

:

A company wants to create a filter in Power Query that includes only the products with a sales revenue increase of at least 20% compared to the previous month. Which step should they follow in the PowerBI desktop?

  • Merge the current month's sales data with the previous month's data. Create a custom column to calculate the percentage increase. Apply a filter on the custom column with a condition of ">= 20%"
Question
:

Julia is a data analyst using Power BI Service, and she wants to ensure that her dataflows are always up-to-date. What steps should Julia typically follow to refresh dataflows in Power BI Service?

Answer A.

  • Schedule automatic dataflow refreshes in Power BI Service

Question
:

Sarah is working on a data cleaning project using Power Query. She needs to split a column and remove duplicate rows from her dataset. Which of the following options should Sarah choose to achieve splitting a column in Power Query?

  • Use the "Transform" option


Question

:

Sarah is a data analyst considering using the Power BI service for her organization's data visualization needs. She wants to understand the main features of the Power BI service. Which of the following features is commonly associated with the Power BI service?

  • On-premises data connectivity to access data stored in local servers

  • Real-time dashboards and streaming datasets for live data updates

Question

:

Sarah, a data analyst, is having trouble connecting to a dataflow from Power BI Desktop. She has created a dataflow in Power BI Service, but when she tries to access it from the Power BI Desktop, she encounters issues. What troubleshooting steps should Sarah typically take to resolve this issue?

  • Ensure that she has the necessary permissions to access the dataflow in the Power BI Service

Question

:

Jessica is a data analyst who is experiencing issues while creating reports using the Power BI Service. She has imported her data, but the visuals are not displaying as expected. What should Jessica typically do to troubleshoot and resolve the issue with her reports in the Power BI Service?

  • Review the data model and relationships to ensure they are correctly configured


Question

:

John is working with Power Query to transform data for a project. He encounters a situation where Power Query needs to rename columns due to a Column Name Conflict. What is the typical renaming convention used by Power Query in such cases

  • It adds a suffix with a separator followed by a number representing the instance of the duplicated column name

Question
:

You are creating metrics in Power BI and implementing metric filtering to provide dynamic insights. However, you encounter an issue where the filtered metric values don't update as expected. You need to troubleshoot this problem.

What could be a potential reason for the filtered metric values not updating correctly, and how can you resolve it?

  • The data model doesn't have proper relationships set up between the metric tables and the filtering tables, leading to incorrect calculations


Question

:

What is a dashboard in Power BI primarily used for?

  • Creating interactive and consolidated views of key performance indicators


Question

:

Michael is new to Power BI Service and wants to get started with dataflows to manage and transform data for his reports. What steps should he typically follow to begin using dataflows in Power BI Service?

  • Create a dataflow in Power BI Desktop and publish it to Power BI Service


Question

:

Emma is working on a data cleansing project in Power BI, and she wants to filter out records that contain errors in one of her tables. She decides to use an Anti Join to achieve this. However, after performing the Anti Join, she noticed that some records with errors were still present in her results. What should Emma do to troubleshoot and effectively filter out records with errors using Anti Joins in Power BI?

  • Apply additional filtering conditions after the Anti Join to target errors


Question

:

John is a data analyst who has just started using Power BI for his organization's data analysis and visualization needs. He wants to begin by creating an account with the Power BI Service. What steps should John typically follow to create an account with the Power BI Service?

  • Sign in with his existing Microsoft account credentials on the Power BI Service website


Question

:

Maria is working on a complex data transformation project using Power Query. She's considering her approach to organizing the transformations. What strategy should Maria consider when dealing with a large number of transformation steps in Power Query?

Answer B.

  • Split the query into multiple queries, with one referencing the next


Question

:

You are working on a Power BI project where you are encountering issues with loading data and establishing relationships between tables. You suspect that there might be data type mismatches causing the problem.

In this troubleshooting scenario, what is the most suitable action to resolve the data loading and relationship issues?

  • Check the data source for data type inconsistencies and ensure that columns with intended relationships have matching data types

Question

:

Sarah, a Power BI developer, is working on creating and using deployment pipelines in Power BI to manage her report development process. However, she encounters issues when trying to publish a report to the production environment using a deployment pipeline. What troubleshooting steps should Sarah typically take to address these issues with creating and using deployment pipelines in Power BI?

  • Review the deployment pipeline settings, including data source connections and permissions


Question

:

You're working on creating connected metrics and submetrics in Power BI, but you're facing challenges with the calculations. You want to troubleshoot the problem.

What could be a potential reason for the calculation issues when creating connected metrics and submetrics in Power BI, and how can you resolve it?

  • You haven't assigned the correct hierarchy relationships between the metrics and submetrics in your data model

  • There's a circular reference in your metric calculations, causing calculation errors

Question

:

Sarah is working on a data integration project in Power BI, and she's using the fuzzy merging feature with a transformation table to match records from two datasets. However, she's encountering an issue where the fuzzy merging is not producing the expected results, and she suspects that the transformation table might be the cause of the problem. What should Sarah do to troubleshoot and improve the fuzzy merging process with the transformation table?

  • Check the transformation table for duplicate entries and remove any duplicates


Question

:

You are a data analyst working with Power BI to prepare and transform data for a sales report. You need to add custom and conditional columns to your dataset using Power Query.

 

What is the correct method for adding custom and conditional columns using Power Query in Power BI?

  • Use the "Add Custom Column" feature to create a custom column, and then use the "Conditional Column" feature to apply conditions

  • Write custom M expressions in the Advanced Editor to create custom and conditional columns manually

Question

:

Sarah is a business professional who wants to access her Power BI reports and dashboards on her mobile device while on the go. She's interested in installing and using the Power BI Mobile App. What steps should Sarah typically follow to install and use the Power BI Mobile App effectively?

  • Sarah should search for "Power BI Mobile" in the app store, download and install the Power BI Mobile App on her mobile device


Question

:

Alex is working on a Power BI project and needs to create a copy of an existing query in Power Query for further transformations. Additionally, he wants to ensure that any changes made to the original query do not affect the duplicated query. Which option should Alex choose for duplicating and referencing queries using Power Query in Power BI Desktop?

  • Use the "Reference" option to create a reference to the original query


Question

:

You are working on a Power BI project where you have created a dataflow to store and manage data. Your goal is to create multiple reports based on this dataflow for different departments in your organization. However, you encounter an issue where changes made to the dataflow are not reflected in all the reports. You need to troubleshoot this problem.

What is the potential reason for changes in the dataflow not reflecting in all the reports, and how can you resolve it?

  • The dataflow refresh schedule is not synchronized with the report refresh schedules, causing a mismatch in the data


Question

:

Emily is a Power BI user who is attempting to link paginated reports in Power BI, but she encounters issues with the linking process. The reports are not navigating as expected. What troubleshooting steps should Emily typically take to address this issue with linking paginated reports in Power BI?

  • Review the report's navigation settings and ensure that hyperlinks are correctly configured


Question

:

Emily, a data analyst, is creating datasets in Power BI Service. She encounters issues with data display. What should she do to troubleshoot?

  • Check file format compatibility


Question

:

Mark is a Power BI user who needs to generate reports automatically in the Power BI Service. He wants to set up a process where reports are generated without manual intervention. What should Mark typically do to autogenerate reports in the Power BI Service?

  • Use Power Automate to trigger report generation based on specific events or schedules


Question

:

You are a data analyst tasked with preparing a dataset for a comprehensive sales report. You decide to use Power Query to streamline the data transformation process. What is one of the primary functions of Power Query in data preparation and transformation?

  • Data extraction