Project Overview

This project is a web-based quiz application designed to test users’ knowledge through multiple-choice questions.
Users can attempt quizzes, select answers, and view their scores at the end. The system provides an interactive and engaging way to practice and evaluate knowledge.
It is typically built using modern technologies like React for the frontend and may include Node.js for backend functionality.

Screenshots

Key Features

• Multiple-choice quiz questions
• Score calculation after quiz completion
• Interactive user interface
• Navigation between questions
• Instant feedback (correct/incorrect)
• Responsive design (mobile + desktop)
• Timer support (optional feature)

Functionaliy

• User opens the quiz application
• Quiz questions are displayed one by one
• User selects an answer for each question
• Application stores selected answers
• At the end, the system calculates the score
• The result is displayed to the user
• UI updates dynamically during the quiz
• Timer (if implemented) controls quiz duration

Technology Used

• React (UI development)
• Node.js (backend support, if included)
• Express.js (API handling)
• CSS / Tailwind CSS (styling)
• JavaScript (logic and functionality)

Why This Project Is Useful

• Helps in learning and self-assessment
• Useful for students and learners
• Good project for understanding:
  • State management
  • User interaction
  • Logic building
• Great for portfolio and demos
• Can be extended into an online exam system

Deployment and Environment Setup

1. Environment Variables Setup:
   • backend/.env
     • PORT: 3000
     • MONGO_URI: mongodb_url_string
     • JWT_SECRET: your_jwt_secret_key_here (if needed)
   • frontend/.env
     • VITE_API_URL: backend_url
2. Deployment Overview:
   • Render or Railway for backend hosting
   • Vercel or Netlify for frontend hosting
   • MongoDB Atlas for the database
3. Backend Deployment:
   • Push your code to GitHub.
   • Go to Render.com or Railway.app.
   • Create a new Web Service and connect your GitHub repository.
   • Choose “backend/” as the root directory.
   • Add the following environment variables on Render:
   • PORT=10000
   • MONGO_URI=your MongoDB Atlas URI
   • JWT_SECRET=your JWT secret
   • Start command: npm start (Ensure your backend/package.json includes “start”: “node server.js”)
   • After deployment, note your backend URL, e.g. https://your-backend-name.onrender.com
4. Frontend Deployment:
   • Go to Vercel.com or Netlify.com.
   • Create a new project and connect the GitHub repo.
   • Select the “frontend/” folder as root.
   • In environment variables, set:
   • VITE_API_URL=https://your-backend-domain.com/api (or REACT_APP_API_URL if using CRA)
   • Deploy.
5. MongoDB Atlas Setup:
   • Go to https://cloud.mongodb.com
   • Create a free cluster.
   • Add your current IP address in Network Access.
   • Create a database user and password.
   • Copy the connection string and replace username, password, and database name in MONGO_URI in backend/.env

Download Source Code

Project Setup Instructions

Note: This project is for educational purposes only. Not for commercial sale.