Cognizant
American multinational information technology services and consulting company.
4 Rounds
~21 Days
Medium
The Interview Loop
Recruiter Screen (30 min)
Standard fit check, behavioral questions, and resume overview.
Technical Loop (3-4 Rounds)
Deep dive into domain knowledge, coding, and system design.
Interview Question Bank
Data Engineer
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Technical
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medium
How do you implement Slowly Changing Dimension (SCD) Type 2 in a data warehouse? Describe the necessary columns and the update logic.
#SCD
#Data Warehousing
#ETL
Data Engineer
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Technical
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medium
What is the difference between Star Schema and Snowflake Schema? Which one is preferred in modern columnar data warehouses and why?
#Star Schema
#Snowflake Schema
#Dimensional Modeling
Difficulty Radar
Based on recent AI-sourced data.
Meet Your Interviewers
The "Standard" Interviewer
Senior EngineerFocuses on core competencies, system constraints, and clear communication.
SimulateUnwritten Rules
Think Out Loud
Always explain your thought process before writing code or drawing architecture.