Quiz on Express JS and Routing

What is Express JS?

• A programming language

• A framework built on Node.js

• A database management system

• A web browser

What does a route handler do?

• It creates new routes

• It runs when a route is accessed

• It manages database connections

• It sends emails

Which HTTP method is used to submit a contact form?

• GET

• POST

• PUT

• DELETE

What does req represent in a route handler?

• Response object

• Database object

• Request object

• Router object

What is the purpose of route parameters?

• To create user sessions

• To manage database queries

• To handle dynamic data in routes

• To define static routes

What does the query string in a URL start with?

• /

• &

• ?

• #

In the example app.get('/search', ...), what does req.query.name retrieve?

• The category of the search

• The URL path

• The search term

• The user's name

What is the output of app.get('/users/:id', ...)?

• User ID is the value passed in the URL

• User ID is undefined

• User ID is a static number

• User ID is 0

What does the app.get('/users/:id/profile', ...) example demonstrate?

• Static routing

• Combining route and query parameters

• Error handling

• Database interaction

What is the output when visiting http://localhost:3000/users/10?

• User ID is 0

• User ID is 10

• User ID is 100

• User ID is not found