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Prep plan

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HCL Tech Full Stack Engineer Interview Questions

The questions to prepare for a HCL Tech Full Stack Engineer interview. Questions from real interview reports rank first. Updated daily.

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1

Technical FundamentalsStart here. 8 questions · ~64 min

Message Queues in AzureMedium

Assesses experience with messaging patterns in cloud environments.

CSS Types and Use CasesMedium

Tests knowledge of CSS paradigms and practical usage.

web technologiescssHHCL Tech

Explain Dependency Injection and IOC ContainersMedium

Assesses understanding of DI and IOC containers.

dependency injectionHHCL Tech

SOLID Principles in PracticeMedium

Tests understanding and application of SOLID in real projects.

software designsolid principlesobject-oriented programmingHHCL Tech

What is the DOMEasy

Assesses foundational web concepts.

web technologiesHHCL Tech

Why Virtual DOM in ReactMedium

Evaluates React internals and performance reasoning.

reactHHCL Tech

Java vs Python ComparisonMedium

Evaluates language tradeoffs for backend work.

javapythonprogramming languagesHHCL Tech

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2

More topics1 question · ~8 min

OOP FundamentalsMedium

Evaluates your knowledge of core object-oriented programming concepts.

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Hands-on SQL practiceWrite and run real queries in the editor. 3 drills · ~30 min

Python List and Dictionary BasicsMedium

Use PostgreSQL aggregations to produce list-like arrays and dictionary-like JSON objects from data records.

Data ManipulationData WranglingData Structures

Checked vs Unchecked ExceptionsEasy

Compare checked and unchecked Java exceptions by retrieving their compile-time handling requirements and representative examples.

error handlingjavadatabase conceptsTThe Card

Python Coding TaskMedium

Calculate each customer's qualified payment count and total for the first quarter of 2025.

CodingJoinsData Manipulation

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