🧪 Node JS MCQ Quiz Hub

1. Which of the following statement is correct?
js is Server Side Language.
js is the Client Side Language.
js is both Server Side and Client Side Language.
None of the above.

2. What does the REPL stand for?
REPL stands for "Read Eval Print Loop."
REPL stands for "Research Eval Program Learn."
REPL stands for "Read Earn Point Learn."
EPL stands for "Read Eval Point Loop."

3. Which of the following command is used to start a REPL session?
$ node
$ node start
$ node repl
$ node console

4. In which language is Node.js written?
JavaScript
C++
CoffeeScript
All of the above

5. Which of the following command is used to install the Node.js express module?
$ npm install express
$ node install express
$ install express
none of the above

6. What is Callback?
The callback is a technique in which a method calls back the caller method.
The callback is an asynchronous equivalent for a function.
Both of the above.
None of the above.

7. Which of the following extension is used to save the Node.js files?
.js
.node
.java
.txt

8. The Node.js modules can be exposed using:
expose
module
exports
All of the above

9. Which of the following module is not a built-in node module?
zlib
https
dgram
fsread

10. Which of the following method of fs module is used to get file information?
fs.open(path, flags[, mode], callback)
fs.stat(path, callback)
fs.readFile(path, flags[, mode], callback)
None of the above.

11. What does the fs module stand for?
File Service
File System
File Store
File Sharing

12. Which of the following method of fs module is used to truncate a file?
fs.delete(fd, len, callback)
fs.remove(fd, len, callback)
fs.ftruncate(fd, len, callback)
None of the above.

13. Which of the following template engines can be used with Node.js?
Jade
Vash
Handlebars
All of the above

14. Which of the following code print the platform of operating system?
console.log('platform : ' + os.platform);
console.log('platform : ' + os.platform());
console.log('platform : ' + os.getPlatform());
None of the above.

15. Which of the following method is used to return the current working directory of the process?
cwd();
cwd();
pwd();
None of the above.

16. Which of the following statement defines Express?
Express is an application framework that provides a robust set of features to develop desktop-based applications.
Express is a minimal and flexible Node.js web application framework that provides a robust set of features to develop web and mobile applications.
Both of the above.
None of the above.

17. Which of the following is not a benefit of using modules in Express?
It provides a means of dividing up tasks.
It provides a means of reuse of program code.
It provides a means of reducing the size of the program.
It provides a means of testing individual parts of the program.

18. What is the best practice to do in your code to improve the performance of your application?
Using gzip compression.
Don't use synchronous functions.
Do logging correctly.
Handle exceptions properly.

19. What is the default scope in the Node.js application?
Global
Local
Global Function
Local to object

20. Which of the following engine Node in core?
Chrome V8
Microsoft Chakra
SpiderMonkey
Node En

21. Which of the following statement is used to execute the code of the sample.js file?
sample.js
node sample.js
nodejs sample.js
None of the above.

22. Which of the following is not a valid language for Node.js?
JavaScript
Java
C
C++

23. Which of the following shortcut command is used to kill a process in Node.js?
Ctrl + B
Ctrl + K
Ctrl + T
Ctrl + C

24. How many Node object methods are available?
21
18
19
20

25. What is the main usage of Node.js terminal (REPL)?
To specify the preview of the Node.js application.
For testing Node.js/JavaScript expressions.
For executing browser's JavaScript expressions.
None of the above.

26. Which of the following types of applications can be built using Node.js?
Web Application
Chat Application
RESTful Service
All of the above

27. Which of the following is used to test if two nodes are equal?
==
equal()
isEqualNode()
None of the above.

28. Which of the following tool is used to automate the various tasks of the Node.js application?
Express.js
GruntJS
NPM
none of the above

29. Which of the following areas, Node.js, is not advised to be used?
Single Page Applications
JSON APIs based Applications
CPU intensive applications
Data-Intensive Real-time Applications (DIRT)

30. Which of the following route parameter formats are valid?
/books/!:from-:to
/flights/:from-:to
/users/:userId/books/:bookId
None of the above.

31. Which of the following module is required to create a web server?
net module
http module
net module
url module

32. Which of the following is the correct syntax to initiate the Node.js File?
filename.js
javascript filename.js
node filename.js
node filename

33. Which of the following method is used to compare the placement of two nodes in the DOM hierarchy (document)?
cloneNode()
compareDocumentPosition()
getFeature()
getUserData()

34. Which of the following platforms does Node.js support?
Windows
Macintosh
Unix/Linux
All of the above.

35. Which of the following keyword is used to make properties and methods available outside the module file?
import
module
exports
require

36. Which of the following Node.js object property is used to return the node immediately before a node?
localName
index
previousSibling
textContent

37. Which of the following method can append specified content to a file?
fs.appendFile()
fs.open()
fs.writeFile()
None of the above.

38. Which of the following is a GUI-based debugging tool for Node.js?
Core node debugger
Console
REPL
Node Inspector

39. What is the use of underscore variable in REPL session in Node.js?
It is used to store the result.
It is used to get the last command used.
It is used to get the last result.
None of the above.

40. The buffer class is a global class that can be accessed without importing a buffer module.
True
False
all of the above
none of the above

41. Is Node.js multithreaded?
Yes
no
all of the above
none of the above

42. Is the process a global object and can be accessed from anywhere?
True
False
SOAP
None of these

43. Node.js uses an event-driven, non-blocking I/O model. Is it true?
True
False
all of the above
none of the above

44. The net.isIP(input) returns 0 for invalid input. Is it true?
True
False
all of the above
none of the above

45. A stream fires finish event when all data has been flushed to the underlying system. Is it true?
True
False
all of the above
none of the above

46. A stream fires data event when there is data available to read. Is it true?
True
False
all of the above
none of the above

47. Which of the following is true about RESTful web services?
Webservices based on REST Architecture are known as RESTful web services
Webservices uses HTTP methods to implement the concept of REST architecture
Both of the above
none of the above

48. The Node.js modules can be exposed using
module.expose
module
module.exports
All of the above

49. In Nodejs how node based web servers differ from traditional web servers?
Node based server uses a single threaded model and can serve much larger number of requests compared to any traditional server like Apache HTTP Server.
Node based server process request much faster than traditional server.
There is no much difference between the two.
All of the above

50. Which statement executes the code of sample.js file?
nodejs sample.js
node sample.js
sample.js
None of the above