What does the following line of code do? var http = require("http"); 

Which method of fs module is used to truncate a file?

How to convert from Buffer instance to string of base64? 

Which of the following code print the total free memory of operating system?

Select valid stream instances:

How can you access the command line arguments passed to your program?

Which of the following is operates asynchronous logic?

In express application you are handling the route '/user/:name'. How could you access the 'name' property?

Which of the following should not to use in NodeJS?

Which of the following is the result of module.id ?

Which of the following timers methods exists in Node.js?