Top 50 data warehouse Interview Questions

Explain how you have compared warehouse and lake architectures, modeled dimensions, and designed Spark pipelines in pre-sales or consulting work.

data pipelinesdata warehousedata architectureDatabricks

Design an idempotent daily batch pipeline that validates JSON, transforms records, and loads them into a data warehouse.

data pipelineETLBatch ProcessingWhatnot

Design dimensional and Data Vault models that support reliable analytics while preserving transactional history and operational usability.

data integrationdata warehouseData ModelingWhatnot

Explain how to reduce cloud warehouse costs while tuning ETL workloads, queries, storage, and compute allocation.

cost optimizationETL optimizationdata warehouseWhatnot

Design a Python and SQL pipeline that ingests streaming data, applies reliable transformations, and serves reporting warehouses.

data pipelineStream ProcessingsqlAdobe

Design reliable Adobe report scheduling and large-file processing with efficient loading, partitioning, retries, and monitoring.

data loadingdata managementBatch ProcessingAdobe