BI Developer Interview Questions and Answers for Freshers

Power BI is a business analytics service by Microsoft that provides interactive visualizations and business intelligence capabilities.

• Advantages: easy to use, integrates with other Microsoft products, allows for real-time data analysis, customizable dashboards

• Disadvantages: limited data capacity, requires a strong internet connection, can be expensive for larger organizations

• Power BI can be used for data modeling, data visualization, and report building

• Examples of Power BI fe...read more

OOPs Concepts include encapsulation, inheritance, polymorphism, and abstraction. Function overloading is having multiple functions with the same name but different parameters. Function overriding is having a derived class redefine a function from its base class.

• Encapsulation: bundling data and methods together

• Inheritance: creating new classes from existing ones

• Polymorphism: using a single interface to represent different types

• Abstraction: hiding implementation details

• Function...read more

Power Pivot, Query, and DAX are tools used in Microsoft Excel and Power BI for data modeling, querying, and analysis.

• Power Pivot is an Excel add-in used for data modeling and creating relationships between tables.

• Query is a tool used for extracting and transforming data from various sources.

• DAX (Data Analysis Expressions) is a formula language used for creating custom calculations and measures.

• These tools are commonly used in Power BI for creating data models and reports.

Create an attendance report for tracking employee attendance

• Gather data on employee attendance including dates, times, and reasons for absence

• Organize the data into a clear and concise report format

• Include metrics such as total number of absences, average attendance rate, and trends over time