online-exam-project

This is the final project for EE599. The aim of this project is to create a website which allows users to take an online exam and submit their answers. In this project, I used NodeJS Express Library and fs module in the backend and Bootstrap and CSS in the frontend.

The frontend contains:

• a home page that shows some details of exam including the number of exam question and the duration of this exam
• a web page that display each question and takes to inputs: your-answer and question information que-ID, correct-answer, points and sends them to the backend using HTTP GET request.
• a countdown timer
• a web page that shows your test results

The backend contains:

• a function to load db.json file(exam paper) and returns data to the frontend
• a simple NodeJS server that processes the HTTP GET request, reads the parameters your-ans and correct-ans and decides whether your-ans is correct or not and returns the result back to the frontend.
• a function to save your test result in a new json file

By default frontend listens on port 3000, and backend listens on port 5000.

Install NodeJS

You can install NodeJs from here.

Running this package

To download and install:

git clone https://github.com/ruiyuzha/online-exam-project.git
npm install

Running Backend:

cd backend
node app.js

You can test backend by installing and running Postman:

Running Frontend:

cd frontend
node app.js

Then open your browser to http://localhost:3000:

A demo video:

https://youtu.be/2JdqLB7rfUc

Future Improvements

• Improvements on the current version: In the program, I define a variable currentQuestionIndex represents the question number: whenever you press the next button the currentQuestionIndex will increase 1 and whenever you press the previous button the currentQuestionIndex will decrease 1. This is not a good way. I should use the variable que_ID to locate these questions.

• Add a login system allows multi-users: professors can be acted as an admin to upload exam paper and students can be acted as guest to answer these questions. In this way, the test results can be improved by saving these information of each user in different files.

• Add more functions to make this project more complete:

  eg: send students answers to professor by email; send a notification to students before the exam starts