NamaSys Power BI Developer Interview Questions and Answers for Experienced

I expect a supportive and collaborative work environment that values professional growth and provides opportunities for learning and development.

• Supportive and collaborative work environment

• Valuing professional growth

• Opportunities for learning and development

I have a strong background in data analysis and visualization, specializing in Power BI to drive business insights and decision-making.

• Over 5 years of experience in data analysis and reporting.

• Proficient in Power BI, creating interactive dashboards for sales performance tracking.

• Worked with SQL databases to extract and transform data for reporting.

• Collaborated with cross-functional teams to understand business requirem...read more

ABC Corporation is a multinational technology company specializing in software development and data analytics.

• ABC Corporation is known for its expertise in Power BI development.

• The company has a global presence with offices in multiple countries.

• ABC Corporation offers a wide range of software solutions for various industries.

• They have a strong focus on data analytics and provide advanced reporting and visualization too...read more

The current CTC and expected CTC are personal financial details and should not be disclosed in an interview.

• It is not appropriate to discuss personal financial details in an interview.

• Salary negotiations should be done after receiving a job offer.

• Focus on discussing your skills, experience, and qualifications for the Power BI Developer role.

Row Level Security is a feature in Power BI that allows you to restrict data access at the row level based on user roles and filters.

• Row Level Security (RLS) is used to control data access in Power BI based on user roles and filters.

• It allows you to define rules that determine which rows of data a user can see.

• RLS can be applied to tables or views in the data model.

• It is commonly used to restrict access to sensitive or...read more

SUM calculates the sum of a column or expression, while SUMX calculates the sum of an expression over a table.

• SUM is used to calculate the sum of a column or expression in Power BI.

• SUMX is used to calculate the sum of an expression over a table in Power BI.

• SUM is typically used with a column reference, while SUMX is used with an expression.

• SUMX can be used to perform calculations on filtered or modified data.

• Example: S...read more

Calculated columns are computed during data loading, while measures are computed on the fly during data visualization.

• Calculated columns are created in the data model and stored in the underlying table.

• Measures are created using DAX expressions and are calculated dynamically based on the context of the visualization.

• Calculated columns consume memory and can impact performance, while measures are more efficient.

• Calculat...read more

The last working day of the company is the day on which an employee's employment ends.

• The last working day is typically determined by the company's policies and the employee's contract.

• It may be different for each employee depending on their notice period or reason for leaving.

• The last working day is usually communicated to the employee through an official letter or email.

• On the last working day, the employee may be re...read more

Power Query is a data connection technology that enables you to discover, connect, combine, and refine data across a wide variety of sources.

• Power Query is a data transformation tool in Power BI used to import, transform, and clean data before loading it into the data model.

• It allows users to connect to various data sources such as Excel, databases, web services, and more.

• Users can perform data cleansing, transformatio...read more

summarize is used to aggregate data at a specified level, while summarizetable is used to aggregate data across multiple tables.

• summarize is used with a single table, while summarizetable can be used with multiple tables

• summarize can only be used with columns from the specified table, while summarizetable can be used with columns from multiple tables

• summarize can be used to create new columns, while summarizetable is u...read more