Node.JS MCQ Questions and Answers for Practice

1. In Nodejs what is use of underscore variable in REPL session

1. to store the result.
2. to get the last command used.
3. to get the last result.
4. None of the above

2. Which of the following is true about Chaining streams ?

1. Chanining is a mechanism to connect output of one stream to another stream and create a chain of multiple stream operations.
2. Chanining is normally used with piping operations.
3. Both of the above
4. None of the above

3. APIs of Node.JS are

1. Asynchronous
2. Synchronous
3. Both of the above.
4. None of the above.

4. Which of the following is true about RESTful web services?

1. Webservices based on REST Architecture are known as RESTful web services
2. Webservices uses HTTP methods to implement the concept of REST architecture
3. Both of the above
4. None of the above

5. Which statement execute the code of sample.js file?

1. nodejs sample.js
2. node sample.js
3. sample.js
4. None of the above

6. The Node.js modules can be exposed using

1. module.expose
2. module
3. module.exports
4. None of the above

7. How can we check the cujrrent version of NPM?

1. npm --version
2. npm --ver
3. npm help
4. None of the above

8. To install Node.js express module

1. $ npm install express
2. $ node install express
3. $ install express
4. None of the above

9. The $ npm ls statement is used to list down all the locally installed module?

1. True.
2. False.

10. Which of the following class is used to create and consume custom events in Node.js?

1. EventEmitter
2. Events
3. NodeEvent
4. None of the above