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Extramarks Education React Js Frontend Developer Interview Questions and Answers
Extramarks Education React Js Frontend Developer Interview Experiences
1 interview found
I applied via Walk-in and was interviewed in Jul 2024. There were 2 interview rounds.
(5 Questions)
- Q1. Asked about lazy loading ?
- Ans.
Lazy loading is a design pattern that delays loading resources until they are needed, improving performance and user experience.
Improves initial load time by loading components only when they are needed.
Implemented in React using React.lazy() and Suspense.
Example: const LazyComponent = React.lazy(() => import('./LazyComponent'));
Helps in reducing the bundle size by splitting code into smaller chunks.
Can be used for ...
- Q2. What do you mean by denouncing?
- Ans.
Denouncing refers to publicly declaring something as wrong or evil.
Denouncing is the act of condemning or criticizing something publicly.
It is often done to express disapproval or to call attention to a wrongdoing.
Examples include denouncing acts of violence, discrimination, or corruption.
Denouncing can also be used in political contexts to criticize policies or actions of a government.
- Q3. How redux state are cleaned ?
- Ans.
Redux state can be cleaned by dispatching an action to reset the state to its initial values.
Dispatching an action with type 'RESET_STATE'
Updating the reducer to return the initial state when 'RESET_STATE' action is dispatched
- Q4. Sorting the array
- Q5. Make pagination and sorting coding questions.
(4 Questions)
- Q1. How Netflix video loading works it was of system design
- Ans.
Netflix uses a content delivery network (CDN) to efficiently load videos based on user location and network conditions.
Netflix uses a distributed network of servers to store and deliver video content closer to users for faster loading times.
Content is cached on servers located in various regions to reduce latency and improve streaming quality.
Netflix employs adaptive bitrate streaming to adjust video quality based on a...
- Q2. How can we download csv file of more then 1000mb and show the data that is downloaded while downloading?
- Ans.
To download a large CSV file (>1000mb) and show the data while downloading, use streaming and pagination techniques.
Implement streaming to download the file in chunks instead of all at once.
Use pagination to display the downloaded data in parts as it is being downloaded.
Consider using libraries like PapaParse for parsing CSV data efficiently.
Show a progress bar or indicator to inform the user about the download status.
- Q3. Pattern question
- Q4. React assingment
Interview Preparation Tips
Skills evaluated in this interview
Top trending discussions
Interview questions from similar companies
SHUBHAM ANAND
I applied via Company Website and was interviewed before Sep 2019. There were 5 interview rounds.
Interview Questionnaire
2 Questions
- Q1. Why should we hire you?
- Q2. Why did you leave your last job?
Interview Preparation Tips
Software Developer Interview Questions & Answers
Next Education India
Anonymous
posted on 23 Jun 2021
I applied via Recruitment Consultant and was interviewed in Dec 2020. There were 6 interview rounds.
Interview Questionnaire
3 Questions
- Q1. Basic questions on core java,java 8 features, multi threading.
- Q2. Basic to advanced questions on Hibernate , SQL queries, spring
- Q3. Questions on architecture,caching, design patterns
Interview Preparation Tips
Prepare well for System design concepts like load balancing , api gateways,caching....
(2 Questions)
- Q1. No any interview
- Q2. It's aptitude test only
Interview Preparation Tips
Yashwant Panchal
Question on Linked list. array and string manipulation.
Yash Solanki
I applied via Job Portal
Medium to hard level DSA from leetcode
Medium to hard level DSA from leetcode
(1 Question)
- Q1. General HR questions.
Interview Preparation Tips
Extramarks Education HR Interview Questions
sapuru dinesh
I applied via Recruitment Consulltant and was interviewed in Jun 2024. There were 2 interview rounds.
Number system,30 min duration
(2 Questions)
- Q1. What is promises
- Ans.
Promises are objects representing the eventual completion or failure of an asynchronous operation.
Promises are used in JavaScript to handle asynchronous operations.
They can be in one of three states: pending, fulfilled, or rejected.
Promises can be chained together using .then() to handle success or failure.
They help avoid callback hell and make asynchronous code more readable.
Example: const myPromise = new Promise((res...
- Q2. What is html and css
- Ans.
HTML and CSS are languages used for creating and styling web pages.
HTML (Hypertext Markup Language) is used for structuring content on a web page.
CSS (Cascading Style Sheets) is used for styling the appearance of the content.
HTML uses tags to define elements like headings, paragraphs, images, and links.
CSS allows for customization of colors, fonts, layouts, and more.
Both HTML and CSS are essential for creating visually...
Skills evaluated in this interview
Basic numeric ability and reasoning
Easy to medium level problems of dsa
(1 Question)
- Q1. It was one and a half hour long round basically what ever your have written down on your resume they will ask you
Selected
I appeared for an interview in Jul 2025, where I was asked the following questions.
- Q1. What React js?
- Q2. What is the difference between class and functional Component?
I applied via LinkedIn and was interviewed in Feb 2023. There were 6 interview rounds.
(1 Question)
- Q1. Data structures
(1 Question)
- Q1. System Design fundamentals
(1 Question)
- Q1. System Design questions
(1 Question)
- Q1. What do you think about the negative news going around the company
(1 Question)
- Q1. Why join this company
Interview Preparation Tips
After taking 5 rounds, they have the audacity of not even calling back, picking up the calls or providing us with any information. If you are not interested in taking the candidate then why waste their time?
Funniest part is that they are fully aware of what a rubbish organization it is. In the later rounds they talked about cost cutting, negative news around the company, and employee complaints for work life balance. However, they are great at gaslighting as well because they make these sound like employee problems not employer problems.
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