Cognizant Uipath Developer Interview Questions and Answers

ReFramework is a template in UiPath for building robust, scalable, and reusable automation projects.

• ReFramework is a template that includes Dispatcher and Performer components for handling transactions.

• Dispatcher is responsible for reading input data and adding it to a queue.

• Performer processes items from the queue, performs the necessary actions, and updates the status of each transaction.

• DataTable transaction approach involves storing transaction data in a DataTable variabl...read more

Execute query is used to retrieve data from a database, while execute non-query is used to perform operations that do not return data.

• Execute query is used for SELECT statements to retrieve data from a database.

• Execute non-query is used for INSERT, UPDATE, DELETE statements that do not return data.

• Execute query returns a result set, while execute non-query returns the number of rows affected.

• Examples: Execute query - SELECT * FROM table_name; Execute non-query - INSERT INTO t...read more

Switch statement is used for multiple conditions, while if-else statement is used for binary conditions.

• Switch statement is more efficient when there are multiple conditions to check.

• If-else statement is more flexible as it can handle complex conditions.

• Switch statement uses 'case' and 'break' keywords, while if-else statement uses 'if', 'else if', and 'else'.

Datatable is used to store and manipulate data in UiPath. Connection string is used to establish a connection to a database.

• Datatable is a structured data type used to store information in rows and columns.

• You can use activities like 'Build Data Table' to create a new datatable or 'Read Range' to read data from an Excel file into a datatable.

• Connection string is a string that contains information about how to connect to a database, including the server name, database name, an...read more

Config file's datatype may be changed to accommodate new requirements or improve performance.

• To support additional data types or structures

• To enhance performance by using a more efficient data type

• To improve readability and maintainability of the config file

• To align with changes in the application architecture

• For better integration with other systems or tools