Node JS 13 Set 3

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Free Online Best Node JS 13 MCQ Questions for improve your basic knowledge of Node JS 13. This Node JS 13 set 3 test that contains 25 Multiple Choice Questions with 4 options. You have to select the right answer to a question.

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Question 1

How Node.js modules are availble externally

A	module.spread
B	module.exports
C	module.expose
D	None of Above

Question 2

A Node.js application consists of the following three important components ____

A	Import required modules
B	Create server
C	Read request and return response
D	All of the Above

Question 3

How many Node object methods are available?

A	21
B	20
C	19
D	18

Question 4

callback The function gets arguments______

A	error
B	stdout
C	stderr
D	All of the Above

Question 5

REPL stands for____

A	Read Eval Point Loop
B	Read Eval Print Loop
C	Research Eval Program Learn
D	Read Earn Point Learn

Question 6

callback The function gets_____ arguments

A	two
B	three
C	four
D	five

Question 7

Which code converts a buffer buf to JSON object?

A	buf.json()
B	buf.covertToJson()
C	buf.toJSON()
D	buf.jsonify()

Question 8

Which of the following is true about __dirname global object?

A	The __dirname represents the name of the directory that the currently executing script resides in
B	The __dirname represents the resolved absolute path of code file
C	both of Above
D	None of the Above

Question 9

In which of the following areas, Node.js is perfect to use?

A	I/O bound Applications
B	Data Streaming Applications
C	Data Intensive Realtime Applications DIRT
D	All of the Above

Question 10

Is console a global object?

A	FALSE
B	TRUE
C	null
D	None of the above

Question 11

Command to start Node REPL____

A	$ node start
B	$ node
C	$ node repl
D	$ node console

Question 12

Which of the following are Node.js streams types?

A	Writable
B	Duplex
C	Readable
D	All of the Above

Question 13

Which of the following Node object property returns the node immediately before a node?

A	previousSibling
B	textContent
C	localName
D	index

Question 14

QUIC protocol support is ____

A	a modern transport for connected applications with increased performance and reliability
B	Worker threads in Node.js enable parallel, CPU-intensive JavaScript operations
C	ECMAScript modules,QUIC protocol support
D	WebAssembly support,V8 JavaScript engine performance updates

Question 15

What is the purpose of the Node object property ownerDocument?

A	Returns the parent node
B	Returns the immediate node
C	Returns the last element
D	Returns the root element

Question 16

The shortcut key for Terminate the Node REPL_____

A	ctrl + d
B	ctrl + c
C	ctrl + b
D	ctrl + x

Question 17

How Node.js modules are availble externally?

A	module.exports
B	module.spread
C	module.expose
D	module.expos

Question 18

Which of the following is true about readable stream?

A	Readable stream is used for read operation
B	Output of readable stream can be input to a writable stream
C	Both of the above
D	None of Above

Question 19

Child processes always have _____ streams

A	two
B	three
C	four
D	five

Question 20

Select all valid rout parameter formats_____

A	/users/:userId/books/:bookId
B	/flights/:from-:to
C	/books/!:from-:to
D	All of the Above

Question 21

Command to list all modules that are install globally?

A	$ npm ls -g
B	$ npm ls
C	$ node ls -g
D	$ node ls

Question 22

What is Callback?

A	Callback is a technique in which a method call back the caller method
B	Callback is an asynchronous equivalent for a function
C	Both of the above
D	None of Above

Question 23

Which of the following code can create a web server ?

A	http.createServer(callback)
B	http.createWebServer(callback)
C	http.createHTTPServer(callback)
D	All of the Above

Question 24

Which function is used to include modules in Node Js?

A	include();
B	require();
C	attach();
D	get()

Question 25

Which of the following is true about readable stream?

A	Readable stream is used for read operation
B	Output of readable stream can be input to a writable stream
C	Both of the above
D	None of the above

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Node JS 13 Set 3

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