Node.js MCQ
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.
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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."
- REPL stands for "Read Eval Point Loop."
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3) Which of the following command is used to start a REPL session?
- $ node
- $ node start
- $ node repl
- $ node console
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4) In which language is Node.js written?
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- JavaScript
- C
- C++
- CoffeeScript
- All of the above
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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
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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.
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7) Which of the following extension is used to save the Node.js files?
- .js
- .node
- .java
- .txt
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8) The Node.js modules can be exposed using:
- expose
- module
- exports
- All of the above
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9) Which of the following module is not a built-in node module?
- zlib
- https
- dgram
- fsread
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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.
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11) What does the fs module stand for?
- File Service
- File System
- File Store
- File Sharing
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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.
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13) Which of the following template engines can be used with Node.js?
- Jade
- Vash
- Handlebars
- All of the above
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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.
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15) Which of the following method is used to return the current working directory of the process?
- cwd();
- cwd();
- pwd();
- None of the above.
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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.
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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.
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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.
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19) What is the default scope in the Node.js application?
- Global
- Local
- Global Function
- Local to object
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20) Which of the following engine Node in core?
- Chrome V8
- Microsoft Chakra
- SpiderMonkey
- Node En
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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
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22) Which of the following is not a valid language for Node.js?
- JavaScript
- Java
- C
- C++
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23) Which of the following shortcut command is used to kill a process in Node.js?
- Ctrl + B
- Ctrl + K
- Ctrl + T
- Ctrl + C
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24) How many Node object methods are available?
- 21
- 18
- 19
- 20
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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.
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26) Which of the following types of applications can be built using Node.js?
- Web Application
- Chat Application
- RESTful Service
- All of the above
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27) Which of the following is used to test if two nodes are equal?
- ==
- equal()
- isEqualNode()
- None of the above.
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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
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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)
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30) Which of the following route parameter formats are valid?
- /books/!:from-:to
- /flights/:from-:to
- /users/:userId/books/:bookId
- None of the above.
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31) Which of the following module is required to create a web server?
- net module
- http module
- net module
- url module
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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
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33) Which of the following method is used to compare the placement of two nodes in the DOM hierarchy (document)?
- cloneNode()
- compareDocumentPosition()
- getFeature()
- getUserData()
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34) Which of the following platforms does Node.js support?
- Windows
- Macintosh
- Unix/Linux
- All of the above.
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35) Which of the following keyword is used to make properties and methods available outside the module file?
- import
- module
- exports
- require
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36) Which of the following Node.js object property is used to return the node immediately before a node?
- localName
- index
- previousSibling
- textContent
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37) Which of the following method can append specified content to a file?
- fs.appendFile()
- fs.open()
- fs.writeFile()
- None of the above.
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38) Which of the following is a GUI-based debugging tool for Node.js?
- Core node debugger
- Console
- REPL
- Node Inspector
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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.
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True or False Questions
40) The buffer class is a global class that can be accessed without importing a buffer module.
- True
- False
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41) Is Node.js multithreaded?
- Yes
- No
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42) Is the process a global object and can be accessed from anywhere?
- True
- False
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43) Node.js uses an event-driven, non-blocking I/O model. Is it true?
- True
- False
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44) The net.isIP(input) returns 0 for invalid input. Is it true?
- True
- False
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45) A stream fires finish event when all data has been flushed to the underlying system. Is it true?
- True
- False
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46) A stream fires data event when there is data available to read. Is it true?
- True
- False
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