Node.js Online Quiz

Q 1 - Why code written in Node.JS is pretty fast although being written in JavaScript?

A - Node.JS internally converts JavaScript code to Java based code and then execute the same.

B - Node.JS internally converts JavaScript code to C based code and then execute the same.

C - Being built on Google Chrome's V8 JavaScript Engine.

D - None of the above.

Q 2 - Which of the following command will show version of npm?

A - $ npm --version

B - $ node --version

C - $ npm getVersion

D - $ node getVersion

Q 3 - Which of the following code converts a buffer buf to JSON object?

A - buf.toJSON()

B - buf.json()

C - buf.covertToJson()

D - buf.jsonify()

Q 4 - Which of the following is true about Piping streams?

A - Piping is a mechanism where we provide output of one stream as the input to another stream.

B - Piping is normally used to get data from one stream and to pass output of that stream to another stream.

C - There is no limit on piping operations.

D - All of the above.

Q 5 - Which method of fs module is used to remove a directory?

A - fs.deleteDirectory(path[, mode], callback)

B - fs.rmdir(path, callback)

C - fs.removeDirectory(path[, mode], callback)

D - None of the above.

Q 6 - Which of the following code print the name of operating system?

A - console.log('type : ' + os.type);

B - console.log('type : ' + os.type());

C - console.log('type : ' + os.getType());

D - None of the above.

Q 7 - Which of the following is the correct way to get an absolute path?

A - os.resolve('main.js')

B - path.resolve('main.js')

C - fs.resolve('main.js')

D - None of the above.

Q 8 - net.isIP(input) returns 4 for IP version 4 addresses.

A - true

B - false

Q 9 - Which of the following code can create a web server?

A - http.createServer(callback)

B - http.createWebServer(callback)

C - http.createHTTPServer(callback)

D - None of the above.

Q 10 - A stream fires end event when there is no more data to read.

A - true

B - false