Data Engineer — SeniorCovers ETL/ELT pipeline design, SQL and DataFrame transformations, and data warehouse concepts like CDC and DAGs senior data engineering interviews focus on.Price: US$ 24.89. 100 published questions in this package.Objectives

Data Modeling & Warehousing

SQL & Query Optimization

ETL/ELT & Pipelines

Apache Spark

Streaming

Big Data Storage & Formats

Cloud Data Platforms

Data Quality & Governance

Distributed Systems

Performance & Scaling

SyllabusData Modeling & WarehousingSQL & Query OptimizationETL/ELT & PipelinesApache SparkStreamingBig Data Storage & FormatsCloud Data PlatformsData Quality & GovernanceDistributed SystemsPerformance & ScalingSample questions

What is the difference between a fact table and a dimension table?

What is a star schema and why is it commonly used?

What is the difference between normalization and denormalization?

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