Multiple approaches for each problem (brute force + optimized)
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120+ problems divided based on 14 problem-solving approaches
Excel tracker to monitor progress (data structure wise)
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400+ curated interview questions with answers across Node.js, React, JavaScript, Java, and SQL - perfect for complete tech interview preparation
100+ React Interview Questions + Guide 8 PDFs
40+ Important React Interview Questions
22-Point React Interview Guide
10 Core React Interview Questions
Top 30 React Questions (Basic Level)
Top 50 React Interview Questions
React + Next.js Important Concepts
React 19
Axios Important Topics for Interviews
100 JavaScript interview questions
100 Most-Asked JavaScript Interview Questions
Clear Answers with Simple Explanations
Practical Code Examples for Every Concept
Real Interview-Based & Industry-Focused Questions
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Core Java fundamentals
40 Node.js Interview Questions + Answers
Covers 40 most asked Node.js interview questions
Clear, concise answers focused on key backend concepts
Includes event loop, middleware, streams, buffers, and clustering
Important topics like CORS, authentication, sessions & child processes
Perfect for backend & full-stack interview preparation
Structured for quick revision before interviews
150 Most Asked Java Interview Questions
OOPS concepts in depth
Strings and memory management
Collections framework
Exception handling
Multithreading and synchronization
Java 8 features (Streams, Lambda)
JVM, JDK, JRE concepts
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Frequently repeated interview topics
SQL Beginner to Advanced (0 - 100)
100 SQL Questions with Answers
25 Basic Level Questions
25 Intermediate Questions
25 Advanced Questions
15 Real-Time Scenario-Based Questions
10 SQL Optimization Technique Questions
17-Page Complete SQL Cheatsheet (BONUS)
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