Cognizant Associate Project Engineer Interview Questions and Answers

Different ways to load data include batch loading, real-time loading, and incremental loading.

• Batch loading involves loading a large amount of data at once, typically done during off-peak hours.

• Real-time loading involves loading data as it is generated, providing up-to-date information.

• Incremental loading involves only loading new or changed data since the last load, reducing processing time and resources.

To connect 2 different databases from a Spring Boot application, you can use Spring Data JPA and configure multiple data sources.

• Configure the data sources in the application.properties file

• Create separate JPA repositories for each data source

• Use @Qualifier annotation to specify which data source to use in each repository

• Inject the repositories in your service classes

• Use @Transactional annotation to ensure atomicity ac