Capgemini Quality Engineering Lead Interview Questions, Process, and Tips

ETL testing is the process of validating and verifying data extraction, transformation, and loading processes in a data warehouse or data integration system.

• ETL testing ensures data is accurately extracted from source systems

• It checks data transformation rules are applied correctly

• It verifies data is loaded into the target system without loss or corruption

• Common ETL testing techniques include data completeness, data qu

I perform ETL testing to ensure data is extracted, transformed, and loaded accurately in the project.

• Verify data extraction from source systems

• Check data transformation logic and accuracy

• Validate data loading into target systems

• Ensure data integrity and consistency throughout the ETL process

Primary key uniquely identifies each record in a table, while foreign key establishes a link between two tables.

• Primary key ensures data integrity by enforcing uniqueness of each record

• Foreign key establishes a relationship between tables by referencing the primary key of another table

• Example: In a database of students and courses, student ID can be a primary key in the students table and a foreign key in the courses t

Test strategy is high-level plan for testing while test plan is detailed document outlining testing approach.

• Test strategy is created at the beginning of the project, outlining overall testing approach and goals.

• Test plan is more detailed and specific, outlining test objectives, scope, resources, schedule, and risks.

• Test strategy focuses on the big picture, while test plan dives into the specifics of how testing will b...read more