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NADSOFT Node Developer Interview Questions and Answers

Updated 19 Jul 2024

NADSOFT Node Developer Interview Experiences

1 interview found

Node Developer Interview Questions & Answers

user image ANUBHAV RAJPOOT

posted on 19 Jul 2024

Interview experience
3
Average
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
Not Selected

I applied via Approached by Company and was interviewed in Jun 2024. There were 2 interview rounds.

Round 1 - HR 

(2 Questions)

  • Q1. Tell me about yourself
  • Q2. What is event loop
  • Ans. 

    Event loop is a mechanism in JavaScript that allows for asynchronous non-blocking operations.

    • Event loop is responsible for handling asynchronous operations in JavaScript.

    • It allows for non-blocking I/O operations by continuously checking the call stack and the callback queue.

    • Event loop ensures that the JavaScript runtime is not blocked by long-running tasks.

    • Example: setTimeout() function in JavaScript uses the event loo...

  • Answered by AI
Round 2 - Assignment 

Create backend for student management

Interview questions from similar companies

I applied via Monster and was interviewed before Dec 2020. There was 1 interview round.

Interview Questionnaire 

1 Question

  • Q1. How to Define a module in angular?
  • Ans. 

    A module in Angular is defined using the NgModule decorator.

    • Import the NgModule decorator from @angular/core

    • Use the decorator to define the module and its properties

    • Export the module to make it available for other modules to import

  • Answered by AI

Interview Preparation Tips

Interview preparation tips for other job seekers - Prepare for conceptual as well as syntactical knowledge.

Skills evaluated in this interview

Interview experience
2
Poor
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Technical 

(2 Questions)

  • Q1. What is NodeJs and why we need to use
  • Ans. 

    Node.js is a runtime environment that allows you to run JavaScript on the server side.

    • Node.js is built on Chrome's V8 JavaScript engine.

    • It is lightweight and efficient for building scalable network applications.

    • Node.js uses an event-driven, non-blocking I/O model, making it ideal for real-time applications like chat apps or streaming services.

  • Answered by AI
  • Q2. NodeJs is single threaded but how it achieved multiple threading
  • Ans. 

    NodeJs achieves multiple threading through event loop and asynchronous non-blocking I/O operations.

    • NodeJs uses event loop to handle multiple requests efficiently without blocking the main thread.

    • It utilizes asynchronous non-blocking I/O operations to perform tasks concurrently.

    • NodeJs can also create child processes to handle heavy computational tasks in parallel.

  • Answered by AI

Skills evaluated in this interview

Interview experience
4
Good
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
No response

I applied via Approached by Company and was interviewed in Oct 2023. There were 2 interview rounds.

Round 1 - Resume Shortlist 
Pro Tip by AmbitionBox:
Keep your resume crisp and to the point. A recruiter looks at your resume for an average of 6 seconds, make sure to leave the best impression.
View all tips
Round 2 - Technical 

(2 Questions)

  • Q1. Tell me about yourself. Tell me about your project and technical background What project you have done . Technology? Which AWS services you have used tell me about AWS lambda function How to make aws lamb...
  • Ans. 

    I am a Node JS Developer with experience in various projects and technologies, including AWS services and async programming.

    • Developed projects using Node JS and various technologies

    • Utilized AWS services such as Lambda functions

    • Implemented async programming concepts like async/await and promises

    • Worked with filtering even numbers in code

    • Familiar with Redis cache and RabbitMQ

    • Knowledge of NPM and packages

  • Answered by AI
  • Q2. When did you used and where did you used redis cache
  • Ans. 

    I have used Redis cache in multiple projects to improve performance and reduce database load.

    • Used Redis cache to store frequently accessed data for faster retrieval

    • Implemented Redis cache in a Node.js application to cache API responses

    • Utilized Redis cache to store session data for improved user experience

  • Answered by AI

Interview Preparation Tips

Interview preparation tips for other job seekers - Intrviewer has good knowledge in AWS
Interview experience
5
Excellent
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
No response

I applied via Referral and was interviewed in May 2024. There were 2 interview rounds.

Round 1 - Technical 

(2 Questions)

  • Q1. Node js event loop
  • Q2. What is api and schema
  • Ans. 

    API is a set of rules and protocols for building and interacting with software applications. Schema defines the structure of data in a database.

    • API stands for Application Programming Interface, it defines how software components should interact.

    • APIs can be used to access data or functionality from external sources, such as a web server or database.

    • Schema defines the structure of data in a database, including tables, fi...

  • Answered by AI
Round 2 - HR 

(2 Questions)

  • Q1. Behavioural questions
  • Q2. Why do you want to join infosys

Skills evaluated in this interview

Interview experience
3
Average
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Technical 

(1 Question)

  • Q1. Multi processing in node
  • Ans. 

    Node.js uses child processes for multi-processing to take advantage of multiple CPU cores.

    • Node.js uses child processes to run multiple instances of the application in parallel.

    • The 'cluster' module can be used to create a pool of worker processes to handle incoming requests.

    • Using child processes allows Node.js to take advantage of multiple CPU cores for better performance.

  • Answered by AI

Skills evaluated in this interview

I applied via Company Website and was interviewed in Jul 2021. There was 1 interview round.

Interview Questionnaire 

8 Questions

  • Q1. Explain the projects you have worked and describe your role.
  • Q2. How do you deploy your Nodejs application?
  • Ans. 

    Nodejs application can be deployed using various tools like Heroku, AWS, DigitalOcean, etc.

    • Use a cloud platform like Heroku, AWS, DigitalOcean, etc.

    • Create a production build of the application

    • Configure environment variables

    • Use a process manager like PM2 to manage the application

    • Use a reverse proxy like Nginx to handle incoming requests

    • Set up SSL/TLS certificates for secure communication

  • Answered by AI
  • Q3. Describe the work flow of Nodejs.
  • Ans. 

    Nodejs is a JavaScript runtime built on Chrome's V8 JavaScript engine.

    • Nodejs uses an event-driven, non-blocking I/O model.

    • It is designed to build scalable network applications.

    • Nodejs uses modules to organize code.

    • It has a built-in package manager called npm.

    • Nodejs can be used for both server-side and client-side programming.

  • Answered by AI
  • Q4. Difference between Nodejs and Javascript.
  • Ans. 

    Node.js is a runtime environment for executing JavaScript code outside of a web browser.

    • Node.js is built on the V8 JavaScript engine, while JavaScript is a programming language.

    • Node.js allows JavaScript to be run on the server-side, while JavaScript is primarily used for client-side scripting.

    • Node.js provides additional features and APIs for server-side development, such as file system access and networking capabilitie...

  • Answered by AI
  • Q5. Difference between Nodejs and Angularjs.
  • Ans. 

    Nodejs is a server-side runtime environment while Angularjs is a client-side JavaScript framework.

    • Nodejs is used for building server-side applications while Angularjs is used for building client-side applications.

    • Nodejs is based on JavaScript and uses an event-driven, non-blocking I/O model.

    • Angularjs is a framework for building dynamic web applications using HTML, CSS, and JavaScript.

    • Nodejs is used for creating APIs, h...

  • Answered by AI
  • Q6. What is error first callback function?
  • Ans. 

    Error first callback function is a convention in Node.js where the first parameter of a callback function is reserved for an error object.

    • The error object is passed as the first argument to the callback function

    • If there is no error, the error object will be null or undefined

    • If there is an error, the error object will contain information about the error

    • This convention allows for consistent error handling in asynchronous...

  • Answered by AI
  • Q7. Did you involve in project proposals?
  • Q8. Do you follow agile or any other SDLC model?
  • Ans. 

    Yes, I follow agile methodology for software development.

    • I believe in iterative development and continuous feedback.

    • I prioritize customer satisfaction and collaboration with the team.

    • I use tools like Jira and Trello to manage tasks and sprints.

    • I also follow the Scrum framework for daily stand-ups, sprint planning, and retrospectives.

  • Answered by AI

Interview Preparation Tips

Interview preparation tips for other job seekers - Simple basic technical questions in Nodejs and javascript were asked.

Skills evaluated in this interview

Interview experience
4
Good
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Assessment test 

(2 Questions)

  • Q1. What is a callback function?
  • Ans. 

    A callback function is a function passed as an argument to another function, which will be executed at a later time.

    • Used in asynchronous programming to handle tasks that take time to complete

    • Allows functions to be executed after another function has finished

    • Commonly used in Node.js for handling I/O operations

  • Answered by AI
  • Q2. Output of setTimeout Js Function?
  • Ans. 

    setTimeout function in JavaScript executes a function after a specified delay.

    • setTimeout function takes two parameters: a function to be executed and a delay in milliseconds.

    • The function is executed only once after the specified delay.

    • Example: setTimeout(() => { console.log('Hello, World!'); }, 2000); // Output: 'Hello, World!' after 2 seconds

  • Answered by AI

Skills evaluated in this interview

Interview experience
4
Good
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
Not Selected

I appeared for an interview in May 2024.

Round 1 - Technical 

(2 Questions)

  • Q1. How node.js works
  • Ans. 

    Node.js is a runtime environment that allows JavaScript code to run on the server-side.

    • Node.js uses an event-driven, non-blocking I/O model, making it lightweight and efficient.

    • It uses the V8 JavaScript engine from Google Chrome to execute code.

    • Node.js allows developers to build scalable network applications using JavaScript.

    • It has a large ecosystem of libraries and frameworks, such as Express.js for web applications.

  • Answered by AI
  • Q2. What is event loop in Node.js
  • Ans. 

    Event loop in Node.js is a mechanism that allows Node.js to perform non-blocking I/O operations.

    • Event loop is responsible for handling asynchronous operations in Node.js.

    • It allows Node.js to perform multiple operations concurrently without blocking the execution.

    • Event loop continuously checks the event queue for any pending events and executes them in a loop.

    • Example: When reading a file in Node.js, the event loop allow...

  • Answered by AI
Round 2 - Technical 

(2 Questions)

  • Q1. How to deploy node.js application
  • Ans. 

    Node.js applications can be deployed using various methods such as using a hosting service, containerization, or serverless platforms.

    • Use a hosting service like Heroku, AWS, or DigitalOcean to deploy the application.

    • Containerize the application using Docker and deploy it on a container orchestration platform like Kubernetes.

    • Utilize serverless platforms like AWS Lambda or Google Cloud Functions for deploying serverless

  • Answered by AI
  • Q2. List AWS services used
  • Ans. 

    Some AWS services commonly used by Node JS developers are EC2, S3, Lambda, RDS, and API Gateway.

    • EC2 (Elastic Compute Cloud) for scalable virtual servers

    • S3 (Simple Storage Service) for object storage

    • Lambda for serverless computing

    • RDS (Relational Database Service) for managed databases

    • API Gateway for creating, publishing, maintaining, monitoring, and securing APIs

  • Answered by AI

Skills evaluated in this interview

Interview experience
3
Average
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Technical 

(2 Questions)

  • Q1. How to connect db to node
  • Ans. 

    Use a database driver like Mongoose or Sequelize to connect a database to Node.js

    • Install the database driver package using npm

    • Require the database driver in your Node.js application

    • Create a connection to the database using the driver's connection method

    • Use the connection object to interact with the database

  • Answered by AI
  • Q2. What is callback hell
  • Ans. 

    Callback hell is a situation in asynchronous JavaScript programming where multiple nested callbacks make the code difficult to read and maintain.

    • Occurs when multiple asynchronous operations are nested within each other

    • Leads to deeply nested code structure which is hard to read and debug

    • Can be avoided by using promises, async/await, or modularizing code

  • Answered by AI

Skills evaluated in this interview

NADSOFT Interview FAQs

How many rounds are there in NADSOFT Node Developer interview?
NADSOFT interview process usually has 2 rounds. The most common rounds in the NADSOFT interview process are HR and Assignment.

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NADSOFT Node Developer Interview Process

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Interview experience

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Average
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