Top NodeJS MCQ (Multiple Choice Questions)

NodeJS is an open-source client-server environment, which is free and runs on cross platforms(multiple platforms like Windows, Unix, Mac OS, etc). NodeJS uses JavaScript on the server side.

NodeJS is preferred because it uses asynchronous programming. It eliminates the wait time for processing a task and directly continues with the next request made by the server. It runs single-threaded, non-blocking, asynchronous programming, which is very memory efficient.

Functionalities of NodeJS:

Generates dynamic page content.
On the server-side, it can create, open, read, write, delete, and close files.
It can collect form data.
It can add, delete and modify data in the database.

NodeJS tasks are done in NodeJS files. These files contain tasks that will be executed on certain events. These files must be instantiated on the server before having any effect, and have the file extension ‘.js’.

NodeJS MCQs

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Node.js is a server-side language.

Node.js is a client-side language.

Node.js is both a server and client-side language.

None of the above.

REPL

REAL

RESP

None of the above

Read Eval Print Loop

Research Eval Program Learn

Read Earn Point Learn

Read Eval Point Loop

C++

JavaScript

Java

npm install body-parser

node install body-parser

node.js install body-parser

None of the above

Express

Body-parser

Socket.io

All of the above

get()

require()

createServer()

None of the above

exports

expose

requires

None of the above

cwd()

pwd()

cmd()

None of the above

Global

Local

Local to Object

None of the above

Ctrl + C

Ctrl + B

Ctrl + K

None of the above

Node Project Manager

Node Package Manager

New Project Manager

New Package Manager

Hello,js

node Hello.js

javascript Hello.js

node Hello

Windows

MAC OS

Unix/Linux

All of the above

REPL

Node Inspector

Node Console

None of the above

localName

index

previousSibling

None of the above

Provides a means of dividing up tasks

Provides a means of reuse of program code

Provides a means of testing individual parts of the program

All of the above

Writable

Duplex

Readable

All of the above

npm install -g nodemon

node install -g nodemon

npm nodemon

node nodemon

zlib

https

dgram

All of the above

It is used to store the result

It is used to get the last command that was used

It is used to get the last result

None of the above

Both statements are true.

Both statements are false.

Statement 1 is true and statement 2 is false.

Statement 2 is true and statement 1 is false.

When there is data to read.

When there is data to write

When there is no data available

None of the above

OS Module

Path Module

Fs Module

None of the above

Create

Listen for

Fire

All of the above

npm –version

node –version

npm getVersion

None of the above

npm ls -g

node ls -g

npm ls

node ls

get

put

post

All of the above

fs.close()

fs.closeFile()

fs.closePath()

None of the above

Express

Cors

URL

None of the above

True

False

Cannot be determined

None of the above

list

cwd

None of the above

Visual Studio

IntelliJ

NetBeans

Node-Red

formidable

express

files

binary

buffer

crypto

dgram

ZLIB

buffer

binary

None of the above

TLS/SSL

TCP/IP

Both A and B

None of the above

static

node-static

http

None of the above

REST

API

Both A and B

None of the above

decoder.write()

decoder.end()

Both A and B

None of the above

punycode

express

None of the above

File Store

File Service

File System

None of the above

Provides a means of dividing up tasks.

Provides a means of resuing program codes

Provides a means of testing individual parts of a program.

All of the above

NoSQL Databases

SQL Databases

Both A and B

None of the above

__dirname

__filename

Buffer

All of the above

Javascript

Java

C++

None of the above

__dirname

Buffer

__filename

None of the above

emit()

fire()

calc()

None of the above

encoding

start

end

All of the above

The callback is a technique in which a method calls back the caller method

The callback is an asynchronous equivalent for a function

Both A and B

None of the above