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Infosys Node Js Backend Developer Interview Questions and Answers

Updated 18 Nov 2024

Infosys Node Js Backend Developer Interview Experiences

1 interview found

Interview experience
4
Good
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
Selected Selected

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

Round 1 - Technical 

(3 Questions)

  • Q1. What is node js and how does it handle concurrency?
  • Ans. 

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

    • Node.js is built on the V8 JavaScript engine from Google Chrome.

    • It uses an event-driven, non-blocking I/O model that makes it lightweight and efficient for handling concurrent operations.

    • Node.js uses the libuv library to handle asynchronous operations and manage event loops.

    • Concurrency in Node.js is achieved through event loops and ca...

  • Answered by AI
  • Q2. Difference between SQL and NoSQL.
  • Ans. 

    SQL is a relational database management system, while NoSQL is a non-relational database management system.

    • SQL databases are table-based and have a predefined schema, while NoSQL databases are document-based, key-value pairs, graph databases, or wide-column stores.

    • SQL databases are good for complex queries and transactions, while NoSQL databases are better for hierarchical data storage and real-time web applications.

    • Ex...

  • Answered by AI
  • Q3. Authentication and Authorization.
Round 2 - One-on-one 

(2 Questions)

  • Q1. What kind of project you have worked on, project discussion.
  • Q2. 3rd Highest number in an array without using any sorting method/algo.
  • Ans. 

    Find the 3rd highest number in an array without sorting.

    • Iterate through the array to find the highest, second highest, and third highest numbers.

    • Keep track of these numbers as you iterate.

    • Return the third highest number once the iteration is complete.

  • Answered by AI

Interview Preparation Tips

Topics to prepare for Infosys Node Js Backend Developer interview:
  • Node.Js
  • MySQL
  • MongoDB
Interview preparation tips for other job seekers - Prepare Mysql and mongodb queries. Also read about authorization and authentication.

Skills evaluated in this interview

Interview questions from similar companies

I applied via Walk-in and was interviewed before Dec 2020. There were 3 interview rounds.

Interview Questionnaire 

3 Questions

  • Q1. Basic Programming questions.
  • Q2. Fibonacci program
  • Q3. OOPS concepts.

Interview Preparation Tips

Interview preparation tips for other job seekers - Prepare basic OOPS concepts and basic programs.

I applied via Naukri.com and was interviewed in Aug 2020. There were 3 interview rounds.

Interview Questionnaire 

1 Question

  • Q1. Oops Concepts and Data Structure Questions.

Interview Preparation Tips

Interview preparation tips for other job seekers - Oops And Data Structure, Collection.

I applied via Campus Placement and was interviewed before Feb 2020. There were 6 interview rounds.

Interview Questionnaire 

4 Questions

  • Q1. Was interviewed as fresher?
  • Q2. Written test conducted? with verbal ability test ? GD
  • Q3. How would u deal with a problematic situation when you are working in a team?
  • Q4. What are your plans about higher studies?

Interview Preparation Tips

Interview preparation tips for other job seekers - it was basic with apptiude test and attitiude test.
Interview experience
5
Excellent
Difficulty level
Easy
Process Duration
4-6 weeks
Result
Selected Selected

I applied via Campus Placement and was interviewed before Dec 2021. There were 2 interview rounds.

Round 1 - Aptitude Test 

Basic logical reasoning and verbal questions . Easy to clear

Round 2 - HR 

(2 Questions)

  • Q1. 1.Tell me about yourself? 2.What are Your achievements?
  • Q2. 3. Your strengths? 4. How did you face a situation using your key skills?

Interview Preparation Tips

Interview preparation tips for other job seekers - Be Confident . Care to explain more instead of giving single word answers . Good luck

Interview Questionnaire 

1 Question

  • Q1. About my college projects and about my passion

I was interviewed in Mar 2021.

Interview Questionnaire 

1 Question

  • Q1. .net core , mvc basics and some scripting language

Interview Preparation Tips

Interview preparation tips for other job seekers - Stick to basics , know about your current project . If interviewer asks you if you have to ask anything , do ask . For my case I asked for his advice where I need to improve. He answered genuinely and even came to know about my other technical skills .

I applied via Campus Placement and was interviewed before Oct 2020. There were 3 interview rounds.

Interview Questionnaire 

3 Questions

  • Q1. About project done
  • Q2. Core Java basics
  • Q3. NodeJs basics

Interview Preparation Tips

Interview preparation tips for other job seekers - Prepare well on Java and the technology you have used in your projects always be truthful and answer directly

Interview Questionnaire 

1 Question

  • Q1. A-Z in MySQL, programming languages(only concepts)

Interview Questionnaire 

1 Question

  • Q1. Questions on java and selenium
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Infosys Interview FAQs

How many rounds are there in Infosys Node Js Backend Developer interview?
Infosys interview process usually has 2 rounds. The most common rounds in the Infosys interview process are Technical and One-on-one Round.
What are the top questions asked in Infosys Node Js Backend Developer interview?

Some of the top questions asked at the Infosys Node Js Backend Developer interview -

  1. What is node js and how does it handle concurren...read more
  2. 3rd Highest number in an array without using any sorting method/al...read more
  3. Difference between SQL and NoS...read more

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Infosys Node Js Backend Developer Interview Process

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