Power BI Interview Questions

Introduction

The digital age revolves around data management, making data analytics an important aspect of running any organization. Companies operating in all major industries need robust data analytics solutions to make sense of their valuable records and make informed decisions. Looking at the ongoing digitization of all industries worldwide, Power BI fits perfectly well in the current corporate environment. The business analytics tool developed by Microsoft allows organizations to gather different unrelated data sources, analyze datasets, and extract valuable insights from them. Whether you work with Excel spreadsheets or cloud-based data warehouses, Power BI helps you gather your data sources and obtain valuable insights from the same. Considering the steadily increasing demand for business analytics solutions, organizations across the globe need skilled IT professionals trained in Power BI. Upskilling yourself by learning Power BI can help you find high-paying jobs in your dream companies. The demand for tools like Power BI will only rise in the future, giving you a secure and sustainable job. Before you start applying for Power BI jobs, here are a few Power BI interview questions and answers that will help you make a positive first impression on the recruiters. Make sure you are thorough with the tool and know the practical applications of all its features to increase your chances of getting hired.

Power BI Interview Questions For Freshers

Let us start with a few common Power BI interview questions for freshers that help college graduates and inexperienced professionals find junior-level Power BI jobs:

Power BI provides technical and non-technical users in an organization with a simplified platform to connect, alter, and visualize their unorganized datasets from multiple sources. This data is then transformed into meaningful records that provide relevant and important insights to the users.

Both Power BI and Tableau are popular names in the field of data analytics and visualization. However, there are subtle differences between the two every data engineer should be aware of:

While Tableau works with MDX for dimensions and measures, Power BI uses DAX
While Power BI is restricted to handling a limited volume of data, Tableau is an ideal solution for handling large data volumes
Tableau is only suitable for experts and professionals in the field. On the other hand, Power BI can be used by both experts and beginners.
While users may find Tableau’s UI to be complicated, the UI of Power BI is simple and easy to understand

Power BI desktop is an open-source desktop application that allows users to connect, transform, and visualize their data in a simple and effective way. It lets you build insightful visuals and a collection of visuals that can be shared with your colleagues and clients as reports.

Power Pivot is an Excel add-on provided by Microsoft in 2010. It was developed to enhance and expand the data analytical capabilities of Excel. Pivot Query is a business intelligence tool developed for Excel by Microsoft. It lets users import their data from multiple sources and help them clean, transform, and reshape it according to their specific requirements. With Power Query, you can write your query once and run it simply with a refresh.

Here are the major steps involved in creating a ReactJS application:

It starts with installing NodeJS on your computer as you need npm for installing the React library. Npm refers to the node package library containing multiple JavaScript libraries (including ReactJS).
You now need to install the create-react-app package with the help of the terminal or command prompt.
Now, you can install a text editor according to your preference to complete the creation of your ReactJS application.

Advanced Power BI Interview Questions

Let us now move on to a few common Power BI Interview questions suitable for experienced professionals:

In Power BI, the visual-level filters are used for filtering data in a single visualization. The page-level filters are used for working on an entire report page with different pages capable of having different filters. Report-level filters in Power BI allow users to filter all pages and visualizations in a report.

Power BI users can set up an automatic data refresh on a daily or weekly basis. Unless they work on Power BI pro, users cannot schedule more than one refresh every day. The Schedule Refresh feature helps users choose a suitable frequency, time zone, and time of the day with a pull-down menu.

Power Map is used by organizations for geographical visualizations. You need location data like the city, state, country, longitude, latitude, etc. to create a precise map in Power Map.

Here are the three major Power BI formats available for organizations:

Power BI Desktop – An open-source application for desktop users
Power BI Services – A data analytics and visualization solution for online services
Power BI Mobile Application – An application compatible with mobile devices

In Power BI, an advanced editor refers to the tool used for viewing queries Power BI runs against the sources importing data. Here, the query is rendered in M-code. If you want to see the query code, you can select the option of “Edit Queries” from the Home tab, followed by clicking on “Advanced Editor” to work on the concerned query. All changes here are saved to “Applied Steps” in the Query Settings.

In Power BI, every single chart or data visualization report you create is collected and represented on a single screen. This approach, which is also called a Power BI Dashboard, is used to depict a story in Power BI.

The Final Word

These were some of the most common and important ReactJS interview questions and answers you should keep in mind if you are applying for a job as a ReactJS developer. Make sure you know the development framework like the back of the hand and are capable of applying the theoretical knowledge to solve your clients’ problems. Depending on the designation you are applying for and the experience you possess, prepare yourself in a way that the recruiters find value in bringing you on board!

Frequently Asked Questions

Why are organizations looking for Power BI experts for their teams?

In the age of digitization, the importance and relevance of data analytics has skyrocketed. Companies operating at all scales need IT professionals who help them gather data from different courses and make sense of seemingly unrelated records to obtain valuable insights. Power BI experts help such organizations build robust business analytics solutions according to their needs and preferences.

What is the salary of a Power BI analyst in India?

In India, the salary of a Power BI analyst ranges from ₹3 lacs to ₹10 lacs per annum. With greater experience and relevant expertise, you can always push the envelope and secure a high-paying job as a Power BI expert.

Will Power BI jobs be relevant after a decade?

Looking at the rate at which organizations worldwide are embracing digitization, it is safe to say that Power BI jobs will stay relevant after a decade. In fact, the demand for these jobs will only increase with time. Whenever a company wishes to implement a modern and automated business analytics solution, there will be a Power BI job opportunity for skilled professionals.

Where can I get a job as a Power BI analyst?

Multiple companies within and outside India are hiring Power BI analysts in their teams. From new startups to high-end enterprises, you can secure a Power BI job in almost any company if you upskill yourself and stay in tune with the ongoing trends.

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Power BI Interview Questions

Introduction