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Wissen Infotech React Developer Interview Questions and Answers

Updated 16 Sep 2022

Wissen Infotech React Developer Interview Experiences

1 interview found

I applied via Naukri.com and was interviewed in Aug 2022. There were 3 interview rounds.

Round 1 - Coding Test 

There was a test with JS and React MCQs. Plus subjective questions which are these.
1. Write a function that keep track of how many times it is called
2. What are Sass, Less, Postcss and Stylus? Why do people use them?
3. What is CSS flexbox? Explain with a simple example.
4. What is the difference between RequireJS, CommonJS and AMD Loaders?
5. Write a function that flattens an array of nested arrays into a single array.
6. What is Callback Hell? How do you avoid it?

Round 2 - Technical 

(2 Questions)

  • Q1. What is React? Why do we use it? Make a form with 3 different child components and pass props from the parent. There should be Select box, an Input field and a Submit Button.
  • Ans. 

    React is a JavaScript library used for building user interfaces.

    • React allows for reusable components and efficient rendering.

    • It uses a virtual DOM to update only the necessary parts of the UI.

    • React is popular for its simplicity and flexibility.

    • Examples of companies using React include Facebook, Instagram, and Airbnb.

  • Answered by AI
  • Q2. What is Virtual DOM?
  • Ans. 

    Virtual DOM is a lightweight copy of the actual DOM that React uses to update the UI efficiently.

    • Virtual DOM is a JavaScript object that represents the actual DOM.

    • It allows React to update only the necessary parts of the UI, improving performance.

    • Changes made to the Virtual DOM are compared with the previous version to determine the minimum number of changes needed to update the actual DOM.

    • React uses a diffing algorith...

  • Answered by AI
Round 3 - Technical 

(1 Question)

  • Q1. Questions about project, experience etc.

Interview Preparation Tips

Interview preparation tips for other job seekers - I'd say avoid this company. The interviewers are egoistic and rigid.

Skills evaluated in this interview

Interview questions from similar companies

I applied via Company Website and was interviewed before Dec 2020. There were 4 interview rounds.

Interview Questionnaire 

1 Question

  • Q1. Questions on Java,SQL,some trending technologies(IOT,Big data),pattern questions, programming questions with different approaches.

Interview Preparation Tips

Interview preparation tips for other job seekers - Prepare basics of DSA, have knowledge about the databases, some common dml ,ddl statements, programming knowledge of a particular language like C,Java, python,etc...have good command on oops concepts... little bit of frameworks knowledge will also help

I applied via Newspaper Ad and was interviewed before Jun 2021. There were 3 interview rounds.

Round 1 - Aptitude Test 
Round 2 - Technical 

(1 Question)

  • Q1. Basic questions of java.
Round 3 - HR 

(1 Question)

  • Q1. Intro and other hr related questions.

Interview Preparation Tips

Interview preparation tips for other job seekers - Cover the basic questions regarding the programming language.

I applied via Referral and was interviewed before Apr 2021. There were 2 interview rounds.

Round 1 - Aptitude Test 

Puzzles, Psychometric Test

Round 2 - One-on-one 

(1 Question)

  • Q1. Some water in 3 Jars question, you had to measure out 5L correctly

Interview Preparation Tips

Interview preparation tips for other job seekers - Make the interview interactive, I got this input from another Senior. Before i went into the interview room the volunteers were telling all those who goes into Room No 1 is screwed. I was praying i don't get room no 1. But fortunately for me I got room no 1 because when the interviewer gave me the puzzle and handed over pen and paper he went back to relax his posture and when i explained i will fill the 5L Jar first, he immediately came forward to listen to me, at that moment i knew i got the job because i felt the previous candidates never made their interview interactive and that's why he went back to relax his posture.

I applied via Company Website and was interviewed before Jun 2021. There were 2 interview rounds.

Round 1 - Aptitude Test 

First round was coding as well as aptitude done together went well I guess focusing on codes helps a lot.

Round 2 - Technical 

(1 Question)

  • Q1. 2nd round included tr and mr round went quite enegritic

Interview Preparation Tips

Interview preparation tips for other job seekers - Resume skills matters a lot don't fill resume the technologies you don't even aware of

I was interviewed in Sep 2016.

Interview Questionnaire 

3 Questions

  • Q1. Tell me about yourself
  • Ans. 

    I am a passionate software developer with experience in Java, Python, and web development.

    • Experienced in Java, Python, and web development technologies

    • Strong problem-solving skills and ability to work in a team

    • Completed multiple projects including a web-based inventory management system

  • Answered by AI
  • Q2. Simple coding questions..Basically pattern.
  • Q3. And also they will ask about your projects.

Interview Preparation Tips

Round: Test
Experience: 60 multiple choice questions so have to manage time carefully.
Tips: Have to give equal importance to all the sections..So try to do well in all section.
Duration: 1 hour 30 minutes
Total Questions: 60

Round: Technical + HR Interview
Experience: Don't panic...Only write those things that you know in your resume.

Skills: Smart Coding
College Name: Jaypee Institute Of Information Technology, Noida

I was interviewed in May 2017.

Interview Preparation Tips

Round: Test
Total Questions: 20

Round: Group Discussion
Duration: 1 hour

Skills: Coding Skills And Knowledge On Data Structures

I was interviewed in Jun 2017.

Interview Preparation Tips

Round: Test
Duration: 1 hour 30 minutes

Skills: Engineering Basics

I was interviewed in May 2017.

Interview Preparation Tips

Round: Group Discussion
Duration: 7 hours

College Name: Andhra university

I was interviewed in Aug 2017.

Interview Preparation Tips

Round: Test
Tips: Practice e litmus questions and also give mock tests on placement season
Duration: 2 hours

Round: Technical + HR Interview
Experience: The interviewer asked me questions from the subjects I mentioned in my CV and also asked so many situational questions like what will you do in this situation etc.

Skills: Presence Of Mind, Technical Skill

Wissen Infotech Interview FAQs

How many rounds are there in Wissen Infotech React Developer interview?
Wissen Infotech interview process usually has 3 rounds. The most common rounds in the Wissen Infotech interview process are Technical and Coding Test.
How to prepare for Wissen Infotech React Developer interview?
Go through your CV in detail and study all the technologies mentioned in your CV. Prepare at least two technologies or languages in depth if you are appearing for a technical interview at Wissen Infotech. The most common topics and skills that interviewers at Wissen Infotech expect are Javascript, Redux, HTML, React.Js and CSS.
What are the top questions asked in Wissen Infotech React Developer interview?

Some of the top questions asked at the Wissen Infotech React Developer interview -

  1. What is React? Why do we use it? Make a form with 3 different child components ...read more
  2. What is Virtual D...read more

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