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Global Infotech Interview Questions

The questions to prepare for Global Infotech interviews, across all roles. Questions from real interview reports rank first. Updated daily.

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1
CodingStart here. 3 questions · ~30 min
Reverse String Without Built-insEasy
Practice

Reverse a string using basic iteration and swapping, without built-in reverse helpers.

Basic Algorithmsfunction implementationStringsGlobal Infotech
Find Duplicate ElementsEasy
Practice

Find each distinct duplicate value in an integer array using sets and preserve first duplicate encounter order.

Hash TablesdeduplicationArraysGlobal Infotech
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2
Technical Fundamentals10 questions · ~100 min
Normalization vs DenormalizationMedium

Tests database design tradeoffs and reasoning about consistency versus performance.

normalizationdatabase designGlobal Infotech
Async JavaScript with PromisesMedium

Tests understanding of async control flow and modern JavaScript concurrency patterns.

asynchronous workjavascripttechnical discussionGlobal Infotech
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3
Behavioral & Leadership7 questions · ~70 min
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4
More topics4 questions · ~40 min
Second Highest Trader SalaryEasy
Practice

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

SubqueriesRankingSortingGlobal Infotech
Web Session SecurityMedium

Tests secure backend practices for session handling and common web vulnerabilities.

technical discussionSecurityGlobal Infotech
E-Commerce Database SchemaHard

Tests data modeling skills and ability to design relational schemas for core commerce entities.

technical discussiondatabase designGlobal Infotech
Explain SQL Join TypesEasy

Explain INNER, LEFT, RIGHT, FULL OUTER, CROSS, and SELF JOINs with examples and when to use each.

JoinsData WranglingGroup ByGlobal Infotech

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Hands-on SQL practiceWrite and run real queries in the editor. 2 drills · ~20 min
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