Coforge Data Engineer Interview Questions
The questions to prepare for a Coforge Data Engineer interview. Questions from real interview reports rank first. Updated weekly.
Find the second highest salary in each department without using aggregate functions.
CoforgeAggregate Coforge pipeline log rows to find the highest error counts by source system using GROUP BY and ORDER BY.
CoforgeExplain core DBMS topics such as ACID, indexes, transactions, and data integrity in a PostgreSQL interview context.
CoforgeFind the second highest distinct salary from a single employee table using PostgreSQL ordering and limiting.
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DXC TechnologyTraverse a graph from a start node using BFS and DFS, returning the visit order for each traversal.
CoforgeFlatten nested JSON into ordered path-value records using depth-first traversal while preserving arrays, types, and empty containers.
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Basic Spark Scala interview topics for ETL pipelines, covering core transformations, execution model, and data quality checks.
CoforgeApproach for designing an end-to-end data pipeline from ingestion through transformation, storage, and downstream consumption.
CoforgeExplain what a data warehouse is and why it matters in analytics pipelines.
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