Quiz | Croma Campus

How do you handle cluster management in an Express.js application?

Using node-cluster middleware
Using the cluster module in Node.js
Using express-cluster middleware
Using app-cluster middleware

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How do you access route parameters in Express.js?

req.route
req.body
req.query
req.params

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What does res.redirect() do in Express.js?

Sends a response with the specified status code
Sends a response with the specified content
Redirects the request to another URL
Terminates the request without sending any response

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How do you listen for server events in Express.js?

Using express.events
Using app.events
Using Node.js's built-in events module
Using express.listeners

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How do you install Express.js?

fetch express
install express
npm install express
get express

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How do you access query string parameters in Express.js?

req.params
req.query
req.route
req.body

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Which method is used to handle errors in Express.js middleware?

app.error()
app.catchError()
app.catchError()
app.use()

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How do you handle errors in Express.js?

app.use((err, req, res, next) => { /.../ })
app.error((err, req, res, next) => { /.../ })
app.catch((err, req, res, next) => { /.../ })
app.handle((err, req, res, next) => { /.../ })

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How do you create a modular route in Express.js?

Using express.RouteHandler()
Using express.Router()
Using express.Module()
Using express.Route()

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What is the default port number for an Express.js server?

3000
8080
8080
5000

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How do you handle JSON Web Tokens (JWT) in Express.js?

Using jsonwebtoken middleware
Using express-jwt middleware
Using express-token middleware
Using jwt-express middleware

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What is next() used for in middleware functions?

To terminate the request-response cycle
To render a view
To send a response
To pass control to the next middleware

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How do you install Express.js in a Node.js project?

Using npm install express
Using npm install express-generator
Using npm install -g express
Using npm install express --save

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What is the purpose of the app.all() method in Express.js?

To handle all HTTP requests
To serve static files
To define middleware functions
To render views

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What is Express.js?

A front-end JavaScript framework
A back-end JavaScript framework
A database management system
A testing framework

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Which module is used to create a server in Express.js?

http
express
fs
path

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How do you create a custom middleware in Express.js?

By defining a function with (req, res, next)
By defining a function with (res, req, next)
By defining a function with (req, res)
By defining a function with (req, res, done)

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Which method is used to handle all HTTP methods for a single route?

app.every()
app.methods()
app.any()
app.all()

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How do you monitor performance in an Express.js application?

Using express-status-monitor middleware
Using perf-monitor middleware
Using express-perf middleware
Using app-monitor middleware

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What is the purpose of the app.route() method in Express.js?

To define route handlers for different HTTP methods on a single route path
To define middleware functions
To serve static files
To render views

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What is the purpose of the express.static() middleware?

To serve static files such as images, CSS, and JavaScript
To handle HTTP GET requests
To render views
To parse request bodies

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How do you start a server in Express.js?

app.listen()
app.run()
app.start()
app.begin()

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Which method is used to set response headers in Express.js?

res.set()
res.headers()
res.sendHeaders()
res.writeHead()

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Which middleware is used to parse URL-encoded bodies?

express.json()
express.parse()
express.body()
express.urlencoded()

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How do you set a cookie in Express.js?

res.cookie()
res.createCookie()
res.setCookie()
res.addCookie()

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How do you rate limit requests in Express.js?

Using express-ratelimit middleware
Using rate-limiter middleware
Using express-rate-limit middleware
Using limit-requests middleware

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How do you handle 404 errors in Express.js?

app.error(404)
app.missing(404)
app.route(404)
app.use((req, res) => { res.status(404).send('Not Found'); })

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How do you send a status code in Express.js?

res.status()
res.sendCode()
res.code()
res.httpStatus()

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How can you access query parameters in Express.js?

Using the req.query object
Using the req.query object
Using the req.body object
Using the req.headers object

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What is Express.js mainly used for?

Creating animations
Styling web pages
Building web applications
Managing databases

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