Study the following code snippet and determine which code line contains an error.

1. var connect =require('connect'),

2. http = require('http');

3. var app = connect();

4. http.createServer(http).listen(3000);

5. console.log('port 3000');

Which of the following HTTP methods for collection URLs is used to replace the entire collection with a new collection?

Carefully study the following code snippet and answer the question that follows: var http = require('http'); var server = http.createServer(function (request1, result1) { console.log('This is request Header'); console.log(request1.headers); result1.write('Working with HTTP'); result1.end(); }).listen(3000); console.log('This is a sample'); When a client request is made, which of the following outputs is obtained on a web browser?

What is the default port number on which a node process in debug mode listens for accepting the incoming connections for the purpose of debugging?

Which of the given statements is correct about the following program? function mSync (ar1, ar2) { if (ar1){ ar2('Data Cached') } else { setTimeout(function () { ar2('Data Loaded ') }, 2000); } } mSync(true, function (value) { prg1(); }); prg2(); function prg2(){console.log('Good Morning')} function prg1(){console.log('Good Evening')}

Which of the following is the correct command for installing the NPM module, underscore?

What does the following command do? npm view version

Which of the following will copy a file in Node.js?

Which node module is used to make API request?

Which of these are valid ways to apply middleware in Express?

Which is a correct way to check the latest released version of the Express module with npm?