- Node.js Tutorial
- Node.js - Home
- Node.js - Introduction
- Node.js - Environment Setup
- Node.js - First Application
- Node.js - REPL Terminal
- Node.js - Package Manager (NPM)
- Node.js - Callbacks Concept
- Node.js - Event Loop
- Node.js - Event Emitter
- Node.js - Buffers
- Node.js - Streams
- Node.js - File System
- Node.js - Global Objects
- Node.js - Utility Modules
- Node.js - Web Module
- Node.js - Express Framework
- Node.js - RESTFul API
- Node.js - Scaling Application
- Node.js - Packaging
- Node.js Useful Resources
- Node.js - Quick Guide
- Node.js - Useful Resources
- Node.js - Dicussion
- Selected Reading
- UPSC IAS Exams Notes
- Developer's Best Practices
- Questions and Answers
- Effective Resume Writing
- HR Interview Questions
- Computer Glossary
- Who is Who
Node.js Online Quiz
Following quiz provides Multiple Choice Questions (MCQs) related to Node.js Framework. You will have to read all the given answers and click over the correct answer. If you are not sure about the answer then you can check the answer using Show Answer button. You can use Next Quiz button to check new set of questions in the quiz.
Q 1 - How Node based web servers are different from traditional web servers?
A - Node based server process request much faster than traditional server.
Answer : B
Explanation
Node based server uses a single threaded model and can services much larger number of requests than traditional server like Apache HTTP Server.
Q 2 - Which of the following command will show version of Node?
Answer : B
Explanation
Executing $ node --version command will show the version of Node instance.
Q 3 - Which of the following is true about EventEmitter.on property?
A - on property is used to fire event.
B - on property is used to bind a function with the event.
Answer : B
Explanation
on property is used to bind a function with the event.
Q 4 - Which method of fs module is used to close a file?
B - fs.closeFile(fd, callback)
Answer : A
Explanation
fs.close(fd, callback) is the method which is used to close a file.
Q 5 - Which method of fs module is used to remove a directory?
A - fs.deleteDirectory(path[, mode], callback)
Answer : B
Explanation
fs.rmdir(path, callback) is the method which is used to remove a directory.
Q 6 - Which of the following code print the name of operating system?
A - console.log('type : ' + os.type);
B - console.log('type : ' + os.type());
Answer : B
Explanation
os.type() returns the operating system name.
Q 7 - Which of the following module is required for network specific operations?
Answer : C
Explanation
Node.js net module is used to create both servers and clients. This module provides an aynchronous network wrapper.
Q 8 - Which of the following stands true for dns.lookup(hostname[, options], callback) method?
A - Resolves a hostname (e.g. 'google.com') into the first found A (IPv4) or AAAA (IPv6) record.
Answer : C
Explanation
dns.lookup(hostname[, options], callback) resolves a hostname (e.g. 'google.com') into the first found A (IPv4) or AAAA (IPv6) record. options can be an object or integer. If options is not provided, then IP v4 and v6 addresses are both valid. If options is an integer, then it must be 4 or 6.
Q 9 - Which of the following module is required to create a child process?
Answer : B
Explanation
Node provides child_process module which provides ways to create child process.
Answer : A
Explanation
Each type of Stream is an EventEmitter instance and throws several events at different instance of times.