Which of the following classes is/are always used for connecting to a MongoDB server?

The following program was designed to create an Express app that displays the output 'Working with Express' on the web browser. But the program contains some errors. Identify which code lines contain an error. 1) var exp1= require('express'); 2) var http: require('http‘); 3) var newapp = exp1() 4) use(function(req. res. next) [ 5) res.end('Working with Express'); 6) i): 7) https.createServer(newapp).listen(3000);

A Node.js application consists of an HTML file named ‘idx.html' and a JavaScript f‌ile 'ht3.js'. The f‌ile ht3.js when executed, should display the content of 'idx.html' file on the web browser. However, the f‌ile 'ht3.js' contains some errors. Identify which code lines contain an error. 1. var http = require(‘http'); 2. var fs; 3. function send404(response){ 4. response.writeHead(404. ['Content—Type' :‘text/plain'}); 5. response.write('Error 404: Resource not found'); 6. response.end0: 7. } 8. var server =http.createServer(function(req. res)[ 9. if(req.method = 'GET', req.url =‘/')[ 10. res.writeHead(200, ['content-type' : 'text/html'}); 11. fs.createReadStream('idx.html') 12. ] 13. else[ 14. send404fres); 15. ] 16. ]).listen(3000); 17. console.logf'server running on port 3000');

Which of the following is/are not (a) valid state(s) of promise used in Node.js?

Which of the following statements are NOT true about promises in Node.js?

Which two of the following statements will generate the output 'Hello Node.js'?

The process object is an instance of____?

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

Node.js is a truly parallel technology.

Which of the following statements are true about the module.exports object?

True or false? Node.js is multi-core by nature.