Node Js Quiz

What is one of the main advantages of using Express?

• It replaces JavaScript with a new programming language

• It is a slow and complex framework

• It provides a lightweight layer on top of Node.js for building web applications

• It only works with databases and not with APIs

Which of the following is NOT an HTTP Request Method?

• GET

• BODY

• POST

• DELETE

What is the primary role of middleware in Express?

• To replace the need for routes in an application

• To handle only authentication and authorization

• To process requests and responses during the request-response cycle

• To directly manage databases without using additional modules

What is the primary purpose of HTTP headers?

• To replace the body of an HTTP request or response

• To carry additional information between the client and server

• To store large amounts of user data permanently

• To carry request parameters between the client and server

In a Microservices Architecture, how do services typically interact with each other?

• By sharing a single database instance

• By communicating through APIs or messaging protocols

• By directly modifying each other's code

• By merging into a single monolithic service

What is the primary role of a model in an application?

• To define the user interface and display data

• To control user input and manage application logic

• To replace the need for controllers in an application

• To handle data management and interactions with databases or APIs

In an EJS template, what do the <%= %> tags do?

• Execute JavaScript code without rendering output

• Render and insert the value of a JavaScript expression into the HTML

• Define a new JavaScript function

• Loop through an array without displaying data

Which of the following is an example of an Express middleware function?

• Logging information about incoming requests

• Writing SQL queries

• Creating a front-end user interface

• Defining API endpoints

Why is the enctype="multipart/form-data" attribute required in the form when uploading files?

• It allows the server to receive file uploads along with other form data

• It ensures that the form data is sent as plain text

• It compresses the file before sending it to the server

• It prevents the form from submitting without JavaScript

What is the purpose of Multer in a Node.js application?

• To serve static files like HTML and CSS

• To manage database connections

• To validate user authentication

• To handle multipart/form-data for file uploads