Upload Button Icon Add office photos
Engaged Employer

i

This company page is being actively managed by Cognizant Team. If you also belong to the team, you can get access from here

Cognizant Verified Tick

Compare button icon Compare button icon Compare

Proud winner of ABECA 2024 - AmbitionBox Employee Choice Awards

zig zag pattern zig zag pattern

Filter interviews by

Cognizant React Native Developer Interview Questions, Process, and Tips

Updated 14 May 2022

Cognizant React Native Developer Interview Experiences

1 interview found

I applied via Approached by Company and was interviewed in Apr 2022. There were 2 interview rounds.

Round 1 - Technical 

(3 Questions)

  • Q1. Difference between functional and class based component
  • Ans. 

    Functional components are stateless and use functional programming concepts, while class components are stateful and use object-oriented programming concepts.

    • Functional components are simpler and easier to read and test.

    • Class components have access to lifecycle methods and state.

    • Functional components are preferred for simple UI components, while class components are preferred for complex UI components.

    • Functional compon...

  • Answered by AI
  • Q2. Have you ever worked on native components
  • Ans. 

    Yes, I have worked on native components.

    • I have experience in creating custom native modules for React Native apps.

    • I have integrated native libraries like Firebase, Google Maps, and Camera into React Native apps.

    • I have used native UI components like TextInput, ScrollView, and FlatList in React Native apps.

    • I have also worked with native modules for iOS and Android separately.

  • Answered by AI
  • Q3. What are hooks and what are the hooks you have used
  • Ans. 

    Hooks are functions that allow you to use state and other React features without writing a class.

    • useState() - for managing state in functional components

    • useEffect() - for performing side effects in functional components

    • useContext() - for consuming context in functional components

    • useReducer() - for managing complex state in functional components

    • useCallback() - for memoizing functions in functional components

  • Answered by AI
Round 2 - Technical 

(3 Questions)

  • Q1. Asked about projects and some questions based on it
  • Q2. What is Hermes engine
  • Ans. 

    Hermes is a JavaScript engine optimized for React Native apps.

    • Developed by Facebook to improve app startup time and reduce memory usage.

    • Uses ahead-of-time compilation to convert JavaScript code into bytecode.

    • Supports ES6 syntax and is compatible with most React Native libraries.

    • Can be enabled in React Native projects by adding a single line to the configuration file.

  • Answered by AI
  • Q3. Are you familiar with new architecture of React native
  • Ans. 

    Yes, I am familiar with the new architecture of React Native.

    • The new architecture of React Native is based on Fabric, a C++ UI framework.

    • It separates the UI rendering from the JavaScript thread, resulting in improved performance.

    • It also introduces new features like TurboModules and JSI for better native module integration.

    • The new architecture is being gradually rolled out in React Native releases.

    • It requires some chang...

  • Answered by AI

Interview Preparation Tips

Topics to prepare for Cognizant React Native Developer interview:
  • React Native
  • Javascript
Interview preparation tips for other job seekers - Easy interview just focus on basics.

Skills evaluated in this interview

Interview questions from similar companies

I appeared for an interview before Sep 2016.

Interview Preparation Tips

Round: Group Discussion
Experience: Interview was scheduled in Grab Job consultancy. In that, a class room, where we all asked to sit and interviewer was sitting in front and asked to speak one by one on the topic traffic situation in Hyderabad.
Tips: Just speak once two to three lines. Don't rush to speak. Take ur time and don't try speak repeatedly.
Duration: 35 minutes

Round: Technical Interview
Experience: System based test. Easy question from java , c, data structure.

Round: HR Interview
Experience: Not held because already we got too late.

Skills: Proficiency In English, Basic Coding
College Name: Medak College of engineering

I appeared for an interview in Mar 2017.

Interview Questionnaire 

5 Questions

  • Q1. Oops concepts in Java?
  • Ans. 

    Oops concepts in Java

    • Encapsulation - hiding implementation details

    • Inheritance - reusing code and creating parent-child relationships

    • Polymorphism - multiple forms of a method or object

    • Abstraction - creating abstract classes and interfaces

    • Example: Encapsulation - using private variables and public methods

    • Example: Inheritance - creating a subclass that inherits from a superclass

    • Example: Polymorphism - using method overloa...

  • Answered by AI
  • Q2. Altering columns in Databases?
  • Ans. 

    Altering columns in databases involves modifying the structure of a table by adding, deleting or modifying columns.

    • Use ALTER TABLE statement to modify columns

    • Add new columns using ADD COLUMN

    • Delete columns using DROP COLUMN

    • Modify columns using MODIFY COLUMN

    • Changing column data type may result in data loss

  • Answered by AI
  • Q3. Asked some queries in SQL
  • Q4. Reversing a number in java?
  • Ans. 

    Reversing a number in Java

    • Convert the number to a string

    • Use StringBuilder to reverse the string

    • Convert the reversed string back to a number

  • Answered by AI
  • Q5. Extracting words from a line in java?
  • Ans. 

    To extract words from a line in Java, split the line using whitespace as delimiter.

    • Use the split() method of String class

    • Pass the whitespace regex as argument to split() method

    • Iterate over the resulting array to get individual words

  • Answered by AI

Interview Preparation Tips

Round: Technical Interview
Experience: Started with the question "Tell me about yourself". Asked me about Core Java. Asked to solve some questions related to Java and SQL.
Tips: Be prepared with high knowledge in Java, Data Structures and SQL.

Skills: Java Programming, Data Strrutures, SQL
College Name: IIITDM Jabalpur

Skills evaluated in this interview

Software Developer Interview Questions & Answers

Capgemini user image Dwarkesh Maheshwari

posted on 23 Sep 2017

I appeared for an interview in Sep 2017.

Interview Questionnaire 

1 Question

  • Q1. Basic c questions and sorting Then about projects

Interview Preparation Tips

Round: Test
Experience: Basic apti questions
But reasoning was tricky
Tips: Don't waste time
Duration: 1 hour
Total Questions: 32

Round: Technical test
Experience: Basic c question
SQL questions
Tips: Must have deep knowledge in c

Round: Technical Interview
Experience: Briefly explain my project and then successfully answerd questions asked
Tips: Complete knowledge of your project

College Name: KIET

Interview Questionnaire 

1 Question

  • Q1. What is the advantage of generic collection, when and why we should approach for that?
  • Ans. 

    Generic collections provide type safety and reusability in software development.

    • Generic collections allow us to store and manipulate objects of any type in a type-safe manner.

    • They provide compile-time type checking, reducing the chances of runtime errors.

    • They promote code reusability by allowing the same collection to be used with different types.

    • Generic collections improve performance by eliminating the need for boxin...

  • Answered by AI

Interview Preparation Tips

Round: Test
Experience: It was and off campus drive, first round was written test on computer as MCQ.
Aptitude, reasoning, English and programming sudo codes.
60 questions 90 minutes.
Duration: 2 hours 30 minutes
Total Questions: 60

Round: Group Discussion
Experience: It was a very interesting round, we were given sufficient time to think about topic.
First we were asked to speak individually on the topic ,later panel member asked is to make same topic as debate.
Tips: Don't sit silent, if you are not getting a chance to speak, you can interrupt to the people and seek a chance to put your point.
Duration: 30 minutes

Round: Technical + HR Interview
Tips: Be confident and tell the exact you know, don't try make customised concepts.
Try to drag interviewer towards the fields of your strength.

I appeared for an interview before Jun 2016.

Interview Questionnaire 

4 Questions

  • Q1. Tell me something about yourself
  • Ans. 

    I am a passionate software developer with 5 years of experience in web development and a strong background in computer science.

    • 5 years of experience in web development

    • Strong background in computer science

    • Passionate about software development

  • Answered by AI
  • Q2. Questions related to project I have worked on during college days
  • Q3. Core Java concepts
  • Q4. Why do you use two mobile numbers
  • Ans. 

    To separate personal and professional calls, and to ensure availability and accessibility.

    • Separate personal and professional calls

    • Ensure availability and accessibility

    • Maintain work-life balance

    • Avoid mixing personal and work-related contacts

  • Answered by AI

Interview Preparation Tips

Round: Test
Total Questions: 60

College Name: Watumull Institute Of Electronics Engineering And Computer Technology ( WIEECT )

I appeared for an interview in Jul 2017.

Interview Questionnaire 

1 Question

  • Q1. Android basics and programs

Interview Preparation Tips

Round: Resume Shortlist
Experience: Resume shortlisted on the basis of 60% through out and experience in development more than 6 months.

Round: Technical Interview
Experience: Core java.. String, oops, exception,

Round: HR Interview
Experience: As usual.. tell me about your self.expectations and salary discussion.
Tips: Be confident whatever you say.

I appeared for an interview in Apr 2017.

Interview Questionnaire 

2 Questions

  • Q1. What is firmware and where it is used?
  • Ans. 

    Firmware is a type of software that is embedded in hardware devices to control their functionality.

    • Firmware is a combination of hardware and software.

    • It is used to control the behavior of hardware devices.

    • Firmware is typically stored in non-volatile memory, such as ROM or flash memory.

    • Examples of devices that use firmware include routers, printers, and digital cameras.

  • Answered by AI
  • Q2. Tell me about yourself only.
  • Ans. 

    I am a passionate software developer with experience in building web applications and solving complex problems.

    • Experienced in programming languages such as Java, JavaScript, and Python

    • Familiar with front-end technologies like HTML, CSS, and React

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

    • Previous projects include developing a customer management system for a small business

  • Answered by AI

Interview Preparation Tips

Round: aptitude
Experience: the test had around 70 questions to be answered in 1 hour
Tips: keep watch on time and be quick enough because each sections has sectional cutoff.

Round: Technical Interview
Experience: the test had around 70 questions to be answered in 1 hour
Tips: keep watch on time and be quick enough because each sections has sectional cutoff.

Round: HR Interview
Experience: they tested my core knowledge and learning skill.
Tips: be strong in your basics.

Skills: Ability To Think Beyond Boundaries
College Name: mnm jec

Skills evaluated in this interview

I appeared for an interview before May 2016.

Interview Questionnaire 

3 Questions

  • Q1. Tell me about your mini project
  • Ans. 

    Developed a web application for tracking personal expenses

    • Used HTML, CSS, and JavaScript for front-end development

    • Implemented Node.js and MongoDB for back-end functionality

    • Included features for adding, categorizing, and analyzing expenses

  • Answered by AI
  • Q2. Tell me about your team work other than project.
  • Ans. 

    I actively participate in team building activities and collaborate with colleagues on various initiatives outside of work projects.

    • Organizing team lunches or outings to build camaraderie

    • Participating in charity events or volunteer work as a team

    • Collaborating on internal initiatives such as diversity and inclusion programs

    • Attending industry conferences or workshops together

  • Answered by AI
  • Q3. How will you convince your client if you are not able deliver the project on time.
  • Ans. 

    I will explain the reasons for the delay and present a plan to mitigate it.

    • Communicate the reasons for the delay clearly and honestly

    • Present a plan to mitigate the delay and ensure timely delivery

    • Provide regular updates on the progress of the project

    • Offer alternative solutions or compromises if necessary

    • Ensure that the client understands the impact of the delay on the project

    • Maintain a professional and respectful attit

  • Answered by AI

Interview Preparation Tips

Round: Test
Experience: Questions will be from aptitude and vocabulary
Duration: 1 hour
Total Questions: 60

Interview Questionnaire 

1 Question

  • Q1. Totally HR basic questions

Interview Preparation Tips

Round: Test
Experience: Quant LR verbal IQ
Duration: 1 hour

Round: HR Interview
Experience: Related to personal life and activities with achievements etc.

College Name: Tsec

Cognizant Interview FAQs

How many rounds are there in Cognizant React Native Developer interview?
Cognizant interview process usually has 2 rounds. The most common rounds in the Cognizant interview process are Technical.
How to prepare for Cognizant React Native 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 Cognizant. The most common topics and skills that interviewers at Cognizant expect are React Native, Javascript, Android, CSS and HTML.
What are the top questions asked in Cognizant React Native Developer interview?

Some of the top questions asked at the Cognizant React Native Developer interview -

  1. what are hooks and what are the hooks you have u...read more
  2. Are you familiar with new architecture of React nat...read more
  3. Have you ever worked on native compone...read more

Tell us how to improve this page.

Interview Questions from Similar Companies

TCS Interview Questions
3.7
 • 10.5k Interviews
Accenture Interview Questions
3.8
 • 8.2k Interviews
Infosys Interview Questions
3.6
 • 7.6k Interviews
Wipro Interview Questions
3.7
 • 5.6k Interviews
Capgemini Interview Questions
3.7
 • 4.8k Interviews
Tech Mahindra Interview Questions
3.5
 • 3.8k Interviews
HCLTech Interview Questions
3.5
 • 3.8k Interviews
Genpact Interview Questions
3.8
 • 3.1k Interviews
LTIMindtree Interview Questions
3.8
 • 2.9k Interviews
IBM Interview Questions
4.0
 • 2.4k Interviews
View all
Cognizant React Native Developer Salary
based on 15 salaries
₹3.5 L/yr - ₹12 L/yr
20% more than the average React Native Developer Salary in India
View more details
Associate
72.2k salaries
unlock blur

₹5.2 L/yr - ₹16 L/yr

Programmer Analyst
55.6k salaries
unlock blur

₹2.4 L/yr - ₹9.4 L/yr

Senior Associate
49.5k salaries
unlock blur

₹8.9 L/yr - ₹28 L/yr

Senior Processing Executive
29k salaries
unlock blur

₹1.8 L/yr - ₹9 L/yr

Technical Lead
17.6k salaries
unlock blur

₹5.9 L/yr - ₹25 L/yr

Explore more salaries
Compare Cognizant with

TCS

3.7
Compare

Infosys

3.6
Compare

Wipro

3.7
Compare

Accenture

3.8
Compare
Did you find this page helpful?
Yes No
write
Share an Interview