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
Backend Engineer
•
Coding
•
easy
Write a SQL query to find the second highest salary of an employee from an Employee table.
#Database
#Queries
Backend Engineer
•
Coding
•
medium
Write a SQL query to find duplicate records in a table based on a specific column, and return the count of duplicates.
#Database
#Group By
#Having
Backend Engineer
•
Technical
•
medium
What is the difference between Clustered and Non-Clustered Indexes in a relational database?
#Database
#Indexing
#Performance
Backend Engineer
•
Technical
•
medium
How do you approach optimizing a slow-running query in PostgreSQL or Oracle?
#Performance Tuning
#Execution Plan
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.