Preparing for technical interviews
In this section, we will prepare you for technical interview questions specifically focused on ETL and data processing. These questions aim to assess your understanding of the concepts and practical considerations involved in ETL workflows and data processing.
To excel in the technical interview, focus on the following areas:
- Data transformation techniques: Be prepared to discuss different data transformation techniques, such as data aggregation, normalization, denormalization, and feature engineering. Provide examples of how you have applied these techniques in real-world scenarios and the benefits they brought to data analysis and decision-making processes.
- ETL best practices: Demonstrate your knowledge of the ETL best practices, including data quality checks, error handling mechanisms, and data validation techniques. Explain how you ensure data accuracy, completeness, and consistency during the ETL process. Showcase your experience...
