Node.js Online Test

1. Real time Data intensive

2. Highly scalable servers for Web Applications

3. Builds fast and scalable network Applications

4. All of the above

Correct Answer : D

1. Client

2. Server

3. Both, server and client

4. None of the above

Correct Answer : B

1. Node.JS internally converts JavaScript code to Java based code and then execute the same

2. Node.JS internally converts JavaScript code to C based code and then execute the same

3. Being built on Google Chrome's V8 JavaScript Engine

4. None of the above

Correct Answer : C

1. strings

2. string patterns

3. regular expressions

4. All of above

Correct Answer : D

1. Express.js

2. GruntJS

3. NPM

4. None of the above

Correct Answer : B

1. It provides an easy way to build scalable network programs

2. Generally fast

3. Great concurrency

4. All of these

Correct Answer : D

1. buf.json()

2. buf.covertToJson()

3. buf.toJSON()

4. buf.jsonify()

Correct Answer : A

1. $ npm --version

2. $ node --version

3. $ npm getVersion

4. $ node getVersion

Correct Answer : A

1. NoSQL databases

2. Relational databases

3. All of the above

4. None of the above

Correct Answer : C

1. node-static

2. http

3. node-resource

4. static

Correct Answer : A

1. Module

2. Library

3. Package

4. Function

Correct Answer : A

1. path.join('/test', 'test1', '2slashes/1slash', 'tab', '..')

2. path.combine('/test', 'test1', '2slashes/1slash', 'tab', '..')

3. buffer.join('/test', 'test1', '2slashes/1slash', 'tab', '..')

4. None of the above

Correct Answer : A

1. Node being a single thread, and uses async function calls to maintain the concurrency

2. Every API of Node js are asynchronous

3. Node thread keeps an event loop and whenever any task get completed, it fires the corresponding event which signals the event listener function to get executed

4. All of these

Correct Answer : A

1. Express.js

2. Geddy

3. Locomotive

4. All of the above

Correct Answer : D

1. Chanining is a mechanism to connect output of one stream to another stream and create a chain of multiple stream operations

2. Chanining is normally used with piping operations

3. Both of the above

4. None of the above

Correct Answer : C

1. JavaScript

2. Java

3. C++

4. C#

Correct Answer : A

1. Node Package Manager

2. Node.exe

3. Module.exports

4. REPL

Correct Answer : A

1. module.expose

2. module

3. module.exports

4. all of the above

Correct Answer : C

1. testing node.js/JavaScript expressions

2. executing browser’s JavaScript expressions

3. the preview of node.js application

4. None of the above

Correct Answer : A

1. Synchronous

2. Multi-threaded

3. Asynchronous

4. None of the above

Correct Answer : A

1. $ npm install express

2. $ node install express

3. $ install express

4. None of above

Correct Answer : A

1. Multiple threads

2. Single thread

3. Multiple Processes

4. Single Process

Correct Answer : B

1. fs.close(fd, callback)

2. fs.closeFile(fd, callback)

3. fs.closePath(fd, callback)

4. None of the above.

Correct Answer : A

1. The __dirname represents the name of the directory that the currently executing script resides in

2. The __dirname represents the resolved absolute path of code file

3. Both of the above

4. None of the above

Correct Answer : A

1. var http = require("http");

2. var http = new require("http");

3. var http = new http();

4. None of the above

Correct Answer : A

1. Core node debugger

2. Console

3. REPL

4. Node Inspector

Correct Answer : D

1. fs

2. url

3. connect

4. http

Correct Answer : D

1. Use gzip compression

2. Don’t use synchronous functions

3. Do logging correctly

4. Handle exceptions properly

Correct Answer : A

1. The process object is an instance of EventEmitter.

2. process emits exit event when process is about to exit.

3. process emits uncaughtException when when an exception bubbles all the way back to the event loop.

4. All of the above

Correct Answer : D

1. isEqualNode()

2. equal()

3. ==

4. none of the mentioned

Correct Answer : A