Frequently Asked Power BI Interview Questions for Freshers and Experienced 2022

When business intelligence tools first became popular in 2011, Microsoft was challenged to create its business intelligence product. Microsoft made Power BI to improve Microsoft Excel to produce interactive reports and give attractive analytical features.

If you aspire to become a Power BI Analyst, here are the frequently asked  Power BI Interview Questions and Answers. Understanding these questions will help you strategize your learning process and ace the interview. 

A Power BI Analyst earns around $94,523 annually in the United States. 

Popular Power BI Interview Questions 2022

Let's start with several basic questions for freshers and describe their solutions.

 

• What is the purpose of Power BI?

 

Power BI's main objective is to expand business growth by more effectively combining information. It presents the data of any business in a seamless way, with a thorough interface. Using this tool, one can make their peers visualise data though reports, charts, diagrams, and more. This will make it more interactive and can easily spot the areas to be focused.

 

• Specify the various components of Power BI

 

These are several parts of Power BI: 

• Power Query: Tool for data mashup and integration 
• Power BI Q&A: Natural Language Question and Answering Engine for Power BI
• Power View: Data visualisation tool
• Power Map: Tool for 3D geospatial data visualisation
• Power Pivot: Tool for modelling tabular data in memory
• Power BI Desktop: A potent auxiliary development tool.
  
  

 

• How is Power BI helpful for data analysis?

 

The most common applications of Power BI are:

• Dashboard updates in real-time
• Prepares reports and dashboards for SaaS solutions
• Connects you securely and reliably access your data, whether it is on-site or in the cloud
• It provides a secure environment, easy setup, and hybrid configuration
• Utilises natural language searches to explore the data
  
  

 

• Please explain the differences between the Data Management Gateway and the Power BI Personal Gateway

 

Power BI Personal Gateway handles reports that are published on Powerbi.com.

To publish reports on Sharepoint and schedule automatic refresh, data management is an app that installs the gateway on the source data machines.

 

• Define the Power Map component

 

Power BI allows users of all skill levels to manage, examine, visualise, and share data with others. One of its key features is presenting data and ideas through striking visuals. One of the images that Power BI offers is a map.

 

• How do you create a group in Power BI?

 

To create a group in Power BI, first, you have to right-click on the fields to be grouped. Then, will select the Group option from the menu. Power BI will automatically group those items. 

Advanced Power BI Developer Interview Questions for Your Interview Preparation 

In this section, we have listed a few frequently asked Power BI interview questions for experienced candidates.

 

• Power BI supports what types of data?

 

You can primarily save two types of data in Power BI.

Fact Sheets:

In a data warehouse's star design, the central table is a fact table that houses quantitative data for analysis that is typically not standardised.

Dimension tables:

A star schema table makes it easier to store the attributes and dimensions that describe the items kept in fact tables.

 

• What use does Power BI designer serve?

 

Users may quickly and easily construct intuitive reports and dashboards with Power BI Designer. It lets users quickly switch between different visual representations of their data for improved analytics and well-informed decision-making.

 

• How would you describe custom visuals?

 

Custom Visuals are those that are imported from the market in order to improve visualisation but are not included in BI Desktop.

 

• What is the option for natural language search?

 

Language-based learning is the option for natural language search as part of the Power BI suite for Office 365 advertising.

 

• How does SSRS integrate with Power BI?

 

The steps to combine SSRS with Power BI are as follows:

• An SSRS Report and Power BI dashboards allow for the pinning of items like charts
• To keep the dashboard's data snapshot updated, a subscription is made
• Soon, reports from Power BI will be available for publishing on the SSRS portal

 

• Distinguish between the Count and CounD functions.

 

While CountD returns unique values that do not include NULL values, the Count function returns to count with NULL values excluded.

 

• What occurs when a single information point in one of the many visuals in a report is clicked on?

 

When we click on a single information point, data is selected and copied to the clipboard. Additionally, we can paste the copied data wherever we need it to be in accordance with your needs.

 

• What distinguishes COVAR from COVARP?

 

The primary distinction between the two is that while COVARP is the population covariance, COVAR directly provides the same covariance.

 

• What does Power BI's Z-order mean?

 

Z-order is a design technique for arranging shapes in a visual hierarchy. It can be characterised as an implementation strategy used whenever reports contain several items.

 

• Can two distinct information sources be combined into one Power BI dashboard?

 

Combining two distinct information sources into one Power BI dashboard is possible. We can combine similar reports into a single dashboard in your Power Bi account.

Where to Learn Power BI course?

A comprehensive Power BI course will assist engineering graduates and working professionals with a background in related industries in creating efficient Dashboards.

The industrial professionals that teach at Skill-Lync ensure that students understand how to combine and transform raw data into interactive dashboards, so learners may learn how to use Power BI there.

Relational data models, Data Analysis Expressions (DAX), and how to construct interactive reports will all be covered in this course.

Students will finish assignments that heavily rely on Power BI, which they can provide as their sample work.

Conclusion

Answering questions in an interview is subjective as you will explain concepts from your level of understanding. Just narrating the same scripted answers will bore the interviewer. A deeper knowledge and good understanding of the applications will make all your answers stand out from others. But the actual meaning should stay consistent with the answer you give.

Skill-Lync provides a project-based learning environment to make candidates proficient in basic concepts and applications. Check out our 12-week program on Power BI that can make you an expert in this field.