In Node.js, which of the following functions is used by an Express app to accept the middleware?

What will be the output of the following code snippet? var x =[8, 12, 3]; x.push(5); x.unshift(1); console.log(x[0]);

In the following program of an asynchronous test, which line of code contains an error? Line 1: exportsaynchabc = function (abc)[ Line 2: setTimeout(function (){ Line 3: abc.equal(false, true); Line 4: abc.done(true. false); Line 5: } 1200); Line 6: };

A Node.js project consists of three files: app1.js, app2.js, and app3.js. The code snippets of each of these files are given below. If we execute app2.js, then what output will be obtained? app1.js module.exports = {value1: 'Hello'}app2.jsvar app1 = require('./app1');console.log('Initial value:',app1.value1);app1.value1 = 'World';var app3 = require('./app3');app3.jsvar app3 = require('./app2');console.log('Final value:', app3.value1);

In a Node.js application, the 'optimist' module is installed. If the following program is executed in a JavaScript file of this application, then what will be the output?var a1 = require('optimist').argv;delete a1['$0'];console.log(a1);

Carefully study the following code snippet and answer the question that follows: new_function (true, function (data){ func1(); }); func2(); function func1(){console.log('Clouds')} function func2(){console.log('Sunshine')} function new_function (ar1, ar2) { if (ar1) { ??? } else { setTimeout(function () { ar2() }, 1000); } } Which of the given code lines should be written in place of '???' in the above program so that the following output is obtained?

If an EventEmitter object emits an 'error' event and there is no listener for it, node will:

In Node.js, the result of an asynchronous function can be accessed how?

What is NOT a valid method to create a child process instance?

Node.js clusters are child processes that do NOT share server ports?

What command is used to end a Node.JS process?