ETL is a critical component of data warehouse architecture. ETL extracts data from source systems, transforms it into a consistent data type, and loads it into a single repository (Extract, Transform, and Load). Data validation, evaluation, and qualification are crucial components of ETL testing. After extracting, transforming, and loading the data, we perform ETL testing to ensure that the final data was imported into the system in the correct format.
Whether you are a candidate actively looking for ETL interview preparation or a recruiter looking for ETL developers, the following list of ETL interview questions will be of great use for you.
The list of ETL interview questions provided here will help you prepare for your ETL interview. These ETL interview questions can aid you in resolving or producing similar queries. However, these technical ETL interview questions would not be the only focus of an ETL interview. Knowing how a person fares in difficult circumstances and how a person behaves among his peers can give the recruiters important insights about the candidate. Thus, apart from technical ETL interview questions, the recruiters will also quiz you on your life and social skills. Ultimately, they want someone who can get along with the team well.
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