Trent Interview Questions and Answers

Power BI offers more advanced data visualization and analysis capabilities compared to Excel.

• Power BI allows for interactive and dynamic data visualization, making it easier to identify trends and patterns.

• Power BI can handle larger datasets more efficiently than Excel.

• Power BI offers more advanced data modeling and transformation capabilities.

• Power BI allows for easy sharing and collaboration on reports and dashboards.

• Power BI integrates with a wide range of data sources, ma...read more

Parameters in Power BI are values that can be passed to queries, filters, or functions to customize data analysis.

• Parameters can be used to filter data based on specific criteria.

• They can also be used to dynamically change calculations or visualizations.

• Parameters can be defined in Power Query Editor or in DAX formulas.

• Examples include using parameters to filter data by date range or product category.

DAX (Data Analysis Expressions) is a collection of functions, operators, and constants that can be used in Power BI, Excel, and other data analysis tools.

• DAX functions are used to create custom calculations in Power BI and Excel.

• DAX functions can be used for tasks like filtering, aggregating, and manipulating data.

• Examples of DAX functions include SUM, AVERAGE, CALCULATE, and RELATED.

Data modelling is the process of creating a visual representation of data relationships and patterns.

• Data modelling involves identifying and defining the relationships between different data elements.

• It helps in organizing and structuring data in a way that is easy to understand and analyze.

• Common techniques used in data modelling include entity-relationship diagrams, UML diagrams, and data flow diagrams.

• Data modelling is essential for database design, data warehousing, and b...read more

Types of data connectivity modes include direct, gateway, and hybrid connections.

• Direct connectivity mode involves connecting directly to the data source without any intermediary

• Gateway connectivity mode uses a gateway to securely connect to on-premises data sources from cloud services

• Hybrid connectivity mode combines elements of both direct and gateway connections for flexibility and security

Drop deletes all rows from a table, while truncate removes all rows and resets auto-increment values.

• Drop is a DDL command, while truncate is a DML command.

• Drop is slower as it logs individual row deletions, while truncate is faster as it deallocates data pages.

• Drop can be rolled back, while truncate cannot be rolled back.

• Example: DROP TABLE table_name; TRUNCATE TABLE table_name;

The SOP for order processing involves receiving, verifying, and fulfilling customer orders in a systematic manner.

• Receive incoming orders from customers via phone, email, or online platforms.

• Verify the accuracy of the order details including product, quantity, pricing, and shipping information.

• Process the order in the system and generate an order confirmation for the customer.

• Coordinate with the warehouse or logistics team to ensure timely fulfillment and shipping of the orde...read more