MERN Stack Mock Interview Practice | Day 17/30 | Real Interview Questions | 17 July 2026

🚀 Day 17/30 – MERN Stack Interview Preparation | Real Mock Interview with ChatGPT 🎤

Welcome to Day 17 of my 30-Day Interview Preparation Challenge! 💻

In today's session, I took a realistic mock interview with ChatGPT, where it acted as a professional interviewer and asked me 7 random interview questions from JavaScript, React, Node.js, MongoDB, and other core MERN concepts.

Unlike fixed question sets, the questions were selected randomly, just like in an actual technical interview. I answered them without prior knowledge of what would be asked, making this excellent practice for real job interviews.

Topics covered in this mock interview:

Tell me about yourself
JavaScript (var, let, const, closures, hoisting, event loop, etc.)
React (State vs Props, React Router, Controlled vs Uncontrolled Components)
Node.js (Streams, EventEmitter, Child Process, Worker Threads)
REST API
Database Concepts (Sharding, Replication, SQL vs MongoDB, ACID, etc.)

At the end of the interview, ChatGPT provided:
✅ Question-wise feedback
✅ Overall score
✅ Communication feedback
✅ Technical feedback
✅ Areas for improvement

This series is helping me prepare for MERN Stack Developer interviews, improve my communication skills, and build confidence.

If you're preparing for JavaScript, React, Node.js, or Full Stack interviews, follow this series and practice along with me!

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