Content updates: August-October, 2025

During the August-October quarter, HackerEarth focused on strengthening Assessment capabilities across multiple domains. We have rolled out new technical content on the following topics:

Question type	Count
Programming	100
SQL	100
Multiple-choice questions (MCQ)	1,070
Subjective	261
Full-stack development	59

Programming questions

Topic	Description
Arrays	Testing manipulation, traversal, and optimization techniques
Greedy algorithms	Evaluating problem-solving approaches for optimal solutions
Mathematics	Assessing computational thinking and mathematical reasoning
Binary search	Testing efficient search algorithm implementation
Number theory	Evaluating understanding of mathematical properties and algorithms
Data structures	Testing proficiency in fundamental data structure implementations and applications

SQL questions

Topic	Description
Common Table Expressions (CTE) Problems	Evaluating candidates' ability to write complex, readable queries for recursive operations, data transformation, and multi-step data analysis

Multiple-choice questions

Topic	Description
Graphs	Graph Traversal, Graph Representation, Graph Properties, Basic Graph Definitions
Web security	SQL Injections, Cross-site Scripting (XSS), Cross-Site Request Forgery (CSRF), Drive-By Downloads, Man-in-the-Middle (MitM) Attacks, Hijacking Techniques, OWASP standards, Web Security Basics
Security standards	CIS, NIST compliance topics with React, HTML, Angular, and Java
Programming languages	Java, C#, Python
Mathematics and Aptitude	Probability, Permutation & Combination, Allegation and Mixtures
Artificial Intelligence	Prompt Engineering, Generative AI
Mechanical Engineering	Thermal and Fluid Sciences, Theory of Machines, Solid Mechanics, Microprocessors and Microcontrollers, Kinematics, Dynamics of Machines, CAD/CAM, 3D Modelling
Salesforce Marketing Cloud (SFMC)	Marketing automation, email studio, journey builder, and campaign management
Fundamentals of Computer Science	Core computing concepts, algorithms, and computational thinking
Basic computer skills	Introductory computer literacy and essential digital skills
Logical Reasoning	Linear Arrangements, Ranking Arrangements, Directions, Coding Decoding, Syllogisms, Blood Relations, Comparisons
Data Structures & Algorithms	Core data structures and algorithmic problem-solving
Cybersecurity	Firewall configuration and Web Security principles
IT Support & Networking	Technical support fundamentals and network administration
Database Management	Database design, optimization, and query management
Domain knowledge	Report Writing, Financial Markets, Regulatory Knowledge
CEFR	Listening, Reading, Writing, and Speaking skills based on the CEFR (Common European Framework of Reference for Languages)
Splunk	Log analysis, data visualization, and monitoring

Subjective questions

Topic	Description
Business and Product	Business Analysis, Product Management, Product Marketing, Project Management/Business Management
User experience	UX design and evaluation, Product management
Technology	Data Science/Analytics, Cyber Security, LLSD, Elixir, Salesforce Marketing Cloud (SFMC)
Regulatory and finance	Regulatory Knowledge (SEBI regulations, exchange compliance requirements, capital market fundamentals), Financial Markets Understanding (trading operations, market surveillance concepts, exchange mechanisms)
JMeter	Performance testing strategy, load testing scenarios, and bottleneck analysis
Leadership and management skills	Delegation, Resource Management, Team Motivation, Decision Making, Problem Solving, Team Management, Time Management, Customer Relationship Management
Engineering disciplines	Electrical and Electronics Engineering, Electronics and Communication Engineering, Biotechnology Engineering, Chemical Engineering, Instrumentation and Control Engineering, Aeronautical Engineering, Computer Science Engineering, Civil Engineering, Mechanical Engineering
Splunk	Log analysis techniques, dashboard creation, and data interpretation
Professional skills	Report Writing, Content Writing

Full-stack development questions

Topic	Description
Elixir	Functional programming paradigm, concurrent processing with lightweight actors, fault-tolerant system design using OTP principles, Phoenix framework, GenServers, and supervision trees for robust distributed systems
Codebase debugging	Large-scale, multi-file debugging challenges simulating real-world production scenarios with complex architectures
ASP.NET MVC	Modern web application development using Microsoft's MVC framework, routing, controllers, views, and security features
Knowledge graph	Neo4j proficiency with Scala, Python, and Java for modeling relationships, writing efficient Cypher queries, and leveraging graph databases for recommendation systems and fraud detection
C++	Advanced programming, including memory management, templates, STL usage, and system-level development practices
FastAPI	High-performance API development with Python's FastAPI framework, async programming, dependency injection, automatic API documentation, and data validation using Pydantic for production-ready RESTful services
.NET 8.0	Migrated all 45 existing .NET questions from version 6.0 to 8.0, ensuring candidates are tested on the latest framework features, including improved performance optimizations, enhanced minimal APIs, native AOT compilation support, and modern C# capabilities
HTML/CSS/JavaScript	Semantic markup, styling fundamentals, responsive design, DOM manipulation, and modern ES6+ features for front-end development
Spring	Enterprise Java application development using the Spring framework
Spring Boot	Rapid application development with Spring Boot's convention-over-configuration approach
Cypress	Modern end-to-end testing framework for web applications

At HackerEarth, our focus is to make technical assessments accurate, relevant, and impactful. Our mission is not only to help organizations hire the best talent but also to give candidates a fair and engaging way to demonstrate their skills.