Power BI Questions (Intermediate Level)

Name some commonly used tasks in the Query Editor.

Connect to data Shape and combine data Group rows Pivot columns Create custom columns Query formulas

Why should you apply general formatting to Power BI data?

Users can use general formatting to make it easier for Power BI to categorize and identify data, making it considerably easier to work with.

Define bi-directional cross filtering.

Bidirectional cross-filtering lets data modelers to decide how they want their Power BI Desktop filters to flow for data, using the relationships between tables. The filter context is transmitted to a second related table that exists on the other side of any given table relationship. This procedure helps data modelers solve the many-to-many issue without having to complicated DAX formulas. So, to sum it up, bidirectional cross-filtering makes the job for data modelers easier.

What is M language?

M is a programming language used in Power Query as a functional, case-sensitive language similar to other programming languages and easy to use.

What are the different views available in Power BI Desktop?

There are three different views in Power BI, each of which serves another purpose: Report View - In this view, users can add visualizations and additional report pages and publish the same on the portal. Data View - In this view, data shaping can be performed using Query Editor tools. Model View - In this view, users can manage relationships between complex datasets.

What do you mean by the content pack?

A content pack is defined as a ready-made collection of visualizations and Power BI reports using your chosen service. You'd use a content pack when you want to get up and running quickly instead of creating a report from scratch.

What are some familiar sources for data in the Get Data menu in Power BI?

A few familiar data sources are Excel, Power BI datasets, web, text, SQL server, and analysis services.

What are the categories of data types?

All File Database Power BI Azure Online Services Other

Where is data stored in Power BI?

Most of the time, power BI gets assisted by the cloud to store the data. Power BI can use a desktop service. Microsoft Azure is used as the primary cloud service to store the data. 1. Azure SQL Database 2. Azure Blob Storage

Explain responsive slicers in Power BI.

On a Power BI final report page, a developer can resize a responsive slicer to various sizes and shapes, and the data collected in the container will be rearranged to find a match. If a visual report becomes too small to be useful, an icon representing the visual takes its place, saving space on the report page.

What are the various versions of Power BI?

Power BI Desktop Power BI service Mobile Power BI apps for iOS and Android devices

What do you mean by grouping?

Power BI Desktop helps you to group the data in your visuals into chunks. You can, however, define your groups and bins. For grouping, use Ctrl + click to select multiple elements in the visual. Right-click one of those elements and, from the menu that appears, choose Group. In the Groups window, you can create new groups or modify existing ones.

What is query folding in Power BI?

Query folding is used when steps defined in the Query Editor are translated into SQL and executed by the source database instead of your device. It helps with scalability and efficient processing.

What is row-level security?

Row-level security limits the data a user can view and has access to, and it relies on filters. Users can define the rules and roles in Power BI Desktop and also publish them to Power BI Service to configure row-level security.

What are the three fundamental concepts of DAX?

Syntax This is how the formula is written—that is, the elements that comprise it. The Syntax includes functions such as SUM (used when you want to add figures). If the Syntax isn't correct, you'll get an error message. Functions These are formulas that use specific values (also known as arguments) in a particular order to perform a calculation, similar to the functions in Excel. The categories of functions are date/time, time intelligence, information, logical, mathematical, statistical, text, parent/child, and others. Context There are two types: row context and filter context. Row context comes into play whenever a formula has a function that applies filters to identify a single row in a table. When one or more filters are applied in a calculation that determines a result or value, the filter context comes into play.

What are the critical components of the Power BI toolkit?

The critical components of Power BI are mentioned below. Power Query Power Pivot Power View Power Map Power Q&A

Explain the building blocks of Microsoft Power BI.

Visualizations Visualization is the process of generating charts and graphs for the representation of insights on business data. Datasets A dataset is the collection of data used to create a visualization, such as a column of sales figures. Dataset can get combined and filtered from a variety of sources via built-in data plugins. Reports The final stage is the report stage. Here, there is a group of visualizations on one or more pages. For example, charts and maps are combined to make a final report. Dashboards A Power BI dashboard helps you to share a single visualization with colleagues and clients to view your final dashboard. Tiles A tile is an individual visualization on your final dashboard or one of your charts in your final report.

Why and how would you use a custom visual file?

You will use a custom visual file if the prepackaged files don't fit the needs of your business. Developers create custom visual files, and you can import them and use them in the same way as you would the prepackaged files.