Which of the following is a core module in Node?

Which of the following Buffer class methods returns an uninitialized buffer?

Which of the following modules is NOT a built-in module in Node?

Which fs module method can be used to read the content of a file without buffering it in memory?

Which of the following DNS module methods uses the underlying OS facilities and does not necessarily perform any network communication?

How do you check that a value is a date object in Node?

In Express, which of these Response methods can NOT automatically end the response?

By executing node without any arguments from the command-line:

What built in class is a global type for dealing with binary data directly?

Given the following route and request, which Request object property will hold the value of 30 in the Express handler? Route: '/post/:id' Request: '/post/30?start=20'

The first argument passed to a Node.js asynchronous callback is always what?