IDC Technologies Interview Questions, Process, and Tips

There are three types of classes in Pega: Abstract, Concrete, and Interface.

• Abstract classes cannot be instantiated and are used as base classes for other classes.

• Concrete classes can be instantiated and are used to define objects.

• Interface classes define a set of methods that a class must implement.

• Examples of abstract classes in Pega include @baseclass and @abstractclass.

• Examples of concrete classes in Pega include @...read more

Types of filters include slicers, visual level filters, page level filters, report level filters, and drill-through filters.

• Slicers allow users to filter data by selecting values from a list.

• Visual level filters apply to a specific visual on a report.

• Page level filters apply to all visuals on a specific page.

• Report level filters apply to all pages in a report.

• Drill-through filters allow users to navigate to another rep

DAX formulas are used in Power BI to create calculated columns and measures based on data in the model.

• DAX stands for Data Analysis Expressions

• DAX formulas can be used to perform calculations, manipulate data, and create custom metrics

• Examples of DAX functions include SUM, AVERAGE, CALCULATE, FILTER, etc.

DAX formulas are used in Power BI to create calculated columns and measures.

• DAX stands for Data Analysis Expressions

• DAX formulas can be used to perform calculations, manipulate data, and create custom metrics

• Examples of DAX formulas include SUM, AVERAGE, CALCULATE, FILTER, and RELATED

Update and select queries are used in database operations to modify and retrieve data.

• Update query is used to modify existing data in a database table, for example: UPDATE table_name SET column1 = value1 WHERE condition;

• Select query is used to retrieve data from a database table, for example: SELECT column1, column2 FROM table_name WHERE condition;

Response codes of API are standardized status codes returned by a server in response to a client's request.

• 200 - OK: Request was successful

• 400 - Bad Request: Invalid input or missing parameters

• 401 - Unauthorized: Authentication required

• 404 - Not Found: Resource not found

• 500 - Internal Server Error: Server-side issue

API Testing is testing the application programming interface to ensure it meets functionality, reliability, performance, and security requirements.

• API Testing involves testing the communication between different software systems through APIs.

• It ensures that the API functions correctly, returns the expected results, and handles errors gracefully.

• API Testing can be done at different levels such as unit testing, integrati...read more