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Cognizant Software Engineer Interview Questions

The questions to prepare for a Cognizant Software Engineer interview. Questions from real interview reports rank first. Updated weekly.

50questions
~9htotal time
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1
CodingStart here. 13 questions · ~145 min
Two Sum with TargetEasy
Practice

Use a hash map to find two array elements that sum to a target in O(n) time.

Hash TablesArraysStringsCognizant
Count Letter OccurrencesEasy
Practice

Count exact occurrences of a target letter in a string using a single pass.

CodingStringsProgrammingCognizant
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2
SQL & Data Manipulation12 questions + 2 drills · ~153 min
Second Highest Trader SalaryEasy
Practice

Find the second highest distinct salary from a single table using basic PostgreSQL ordering and limiting.

SubqueriesRankingSortingCognizant
SQL Questions in AssessmentMedium

Tests your SQL fundamentals and ability to answer common database-related prompts.

Data WranglingtechnicalsqlCognizant
Second and Third Max in SQLEasy
Practice
Practice drill

Use DENSE_RANK to find the second and third highest distinct billing rates in Cognizant project rate cards.

sqlCognizant
Second Largest Salary QueryEasy
Practice
Practice drill

Use DENSE_RANK and a join to find the second-highest distinct salary among active CGS program employees.

sqlTiger AnalyticsCognizantAntra
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3
Security & Infrastructure12 questions · ~133 min
Multithreading ConceptsMedium

Tests understanding of concurrency and how multithreading improves application performance.

technicalProgrammingos internalsCognizant
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4
Execution7 questions · ~78 min
Page Optimization ScenarioMedium

Assesses performance troubleshooting and optimization thinking.

performance optimizationCognizant
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5
Behavioral & Leadership3 questions · ~33 min
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6
More topics3 questions · ~33 min
Full Stack Application BuildHard

Assesses your ability to design and build a full stack solution end to end.

Cognizant
Producing API Data to TablesMedium

Evaluates ability to integrate APIs and render structured data.

apiCognizant
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The finish line: interview-readyComplete all 50 questions plus 2 hands-on drills to finish this plan.