Mastering Express JS Concepts
Quiz
•
Information Technology (IT)
•
12th Grade
•
Practice Problem
•
Medium
Gagandeep Ltd.
Used 2+ times
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15 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is Express JS?
A programming language for web development.
A front-end framework for building user interfaces.
Express JS is a web application framework for Node.js.
A database management system.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How do you install Express JS in a Node.js project?
Use 'yarn add express' instead of npm.
Run 'npm start express' in your project directory.
Run 'npm install express' in your project directory.
Install Express by downloading it from the official website.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is middleware in Express JS?
Middleware is a tool for managing server hardware in Express JS.
Middleware is a type of database in Express JS.
Middleware in Express JS is a function that processes requests and responses.
Middleware is a front-end framework for building user interfaces.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How can you define a route in Express JS?
app.get('/path', (req) => { return 'Hello World!'; });
app.get('/path', (req, res) => { res.send('Hello World!'); });
app.post('/path', (req, res) => { res.send('Hello World!'); });
app.route('/path', (req, res) => { res.send('Goodbye World!'); });
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the purpose of the `app.listen()` method?
To connect to a database server.
To start a server and listen for incoming requests on a specified port.
To define middleware functions for the app.
To create a new application instance.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How do you handle GET requests in Express JS?
Use app.post('/route', (req, res) => { res.send('response'); });
app.get('/route', function(req) { return 'response'; });
app.get('/route', (req, res) => { res.json('response'); });
Use app.get('/route', (req, res) => { res.send('response'); });
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the difference between `req.params` and `req.query`?
`req.params` is for route parameters in the URL path, while `req.query` is for query string parameters.
`req.params` and `req.query` are interchangeable and serve the same purpose.
`req.params` is used for headers, while `req.query` is used for cookies.
`req.params` is for query string parameters, while `req.query` is for route parameters in the URL path.
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