Node.js Test 2

Question 1

Node.js streams kinds are.

Accepted Answer

All of the above

Answer

Explanation:
Node.js Streams are objects that allow developers to continuously receive and write data to and from a source. In Node.js, there are four sorts of streams: readable, writable, duplex, and transform. Each stream is an instance of eventEmitter that emits various events at various intervals.

Question 2

To read a file, the ______ fs module's method is utilized.

Accepted Answer

fs.read(fd, buffer, offset, length, position, callback)

Answer

Explanation:
This method is a built-in application programming interface of the fs module that is used to read and return the contents of a file. We can read a file in a non-blocking asynchronous manner with the fs.readFile() function, but we can read files in a synchronous manner using the fs.readFileSync() method, which tells node.js to halt other parallel processes and focus on the current file reading process.

Question 3

In Node.js, the ______ core module is used to create a web server.

Accepted Answer

http

Answer

Explanation:
HTTP is the application layer protocol in the OSI Model. NodeJS features an HTTP module that may be used as both a client and a server. This module comes pre-installed with Node, thus you won't need to install any other node modules to utilize it.

Question 4

The technique of organizing simple or sophisticated functionality in a single or numerous JavaScript files that may be reused across your Node.js application is known as.

Accepted Answer

Module

Answer

Explanation:
A module in Node.js is a single or a collection of JavaScript files that include simple or complex functionality that may be reused across the application.
In Node.js, each module has its own context, preventing it from interfering with other modules or polluting global scope. Each module can also be stored in its own.js file within its own subdirectory.

Question 5

_________ is a Node.js debugging tool with a graphical user interface.

Accepted Answer

Node Inspector

Answer

Explanation:
Inspector is a debugging interface for node.js applications that is located in the app.js file and used by the developer tools in node.js. It's very comparable to Chrome developer tools in terms of functionality.

Node.js Practice Test

Node.js Practice Test

Node.js Test 2