Livevox Solutions Interview Questions and Answers

Q1. Create basic react app with dummy data fetched from JSON API
Ans. 
Create a basic React app with dummy data fetched from a JSON API.
• Set up a new React project using create-react-app

• Create a component to fetch data from a JSON API using fetch or axios

• Display the fetched data in the component
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Q2. Array methods and Flatten array
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Q3. Event loop
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Q4. HTML and Javascript basics
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Q1. Concept of Hoisting in Javascript
Ans. 
Hoisting is a JavaScript behavior where variable and function declarations are moved to the top of their containing scope during compilation.
• Variable declarations are hoisted to the top of their scope, but not their initializations.

• Function declarations are fully hoisted, including their definitions.

• Hoisting can lead to unexpected behavior if not understood properly.
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Q2. What is arrow function
Ans. 
Arrow functions are a concise way to write functions in JavaScript.
• Arrow functions are anonymous functions defined using the '=>' syntax.

• They have a shorter syntax compared to traditional function expressions.

• Arrow functions do not have their own 'this' keyword, instead they inherit it from the parent scope.
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Q3. Polyfill of Promise
Ans. 
Polyfill of Promise is a code that adds Promise functionality to browsers that do not support it natively.
• Polyfill is a piece of code that provides the technology that you expect the browser to provide natively.

• Polyfill for Promise adds Promise functionality to browsers that do not support it, allowing developers to use Promises in their code.

• Examples of Promise polyfills include 'es6-promise' and 'promise-polyfill'.
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Q1. Implementation of carousel
Ans. 
Implementing a carousel for displaying multiple images or content in a rotating manner.
• Use a library like Slick or Owl Carousel for easy implementation

• Ensure images/content are responsive for different screen sizes

• Add navigation arrows or dots for user interaction

• Consider adding autoplay feature with customizable speed

• Optimize performance by lazy loading images
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Q1. SQL Questions - Constraints- how to optimize long SQL query without changing the output
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Q1. Question based on CV
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1 hour - NodeJS Based

Q1. High Level System Design
Ans. 
High level system design involves creating an overall architecture for a software system.
• Identify the main components of the system

• Define the interactions between the components

• Consider scalability, reliability, and performance

• Use diagrams to visualize the design

• Example: Designing a social media platform with user profiles, posts, and messaging functionality
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Q1. Low Level System Design
Ans. 
Low level system design involves designing the internal components of a software system.
• Focus on the architecture of the system at a detailed level

• Consider how different components interact with each other

• Optimize for performance and efficiency

• Think about scalability and maintainability

• Examples: designing a database schema, creating algorithms for data processing
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Q1. Culture Fit Round - Strength, Challenges etc
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Basic Js concepts like debouncing,event loop, and other output-based questions.

Q1. Js concepts in depth
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Q1. Hiring manager round, questions around my project
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Q2. Optimization techniques
Ans. 
Optimization techniques are methods used to improve the efficiency and performance of software applications.
• Use algorithms like greedy, dynamic programming, or divide and conquer to optimize code

• Minimize time complexity by avoiding nested loops and unnecessary iterations

• Utilize data structures like hash tables, arrays, and trees for efficient storage and retrieval

• Profile code to identify bottlenecks and optimize critic...read more
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Q1. Previous exp in banking domain
Ans. 
Yes, I have 5 years of experience working in the banking domain.
• Managed projects for implementing new banking software systems

• Worked closely with stakeholders to ensure project goals aligned with business objectives

• Led a team of developers to customize banking applications for client needs
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Q1. Real time application
Ans. 
Real time application refers to software that processes data as it is received, providing instant feedback or results.
• Real time applications require low latency for immediate response

• Examples include live chat applications, stock trading platforms, and online gaming

• Data is processed and displayed instantly without delay
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Q2. What domain experience you have
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Q1. Salary negotiation ,company culture
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Q1. Technical questions that includes coding as well
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Q1. Technical and Managerial discussion
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Q1. Salary discussion
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Q1. Tell me about your self
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