Compunnel Senior Recruiter Interview Questions and Answers for Experienced

Pair programming Round - It involves collaborating with the interviewer on the development of a small or micro feature.

System Design Interview - High Level & Low Level Design

Behavioral Interview Round - Test our abilities to handle various conflicts & leadership qualities

Social Issues - Test our understanding of various social/real-world problems and solutions

Peer-coding test based on the provided tech-stack

Q1. Current project overview & it's architecture
Ans. 
Current project involves developing a cloud-based CRM system for a multinational corporation.
• Utilizing microservices architecture for scalability and flexibility

• Implementing RESTful APIs for seamless integration with other systems

• Leveraging cloud services like AWS for hosting and data storage

• Using Docker containers for easy deployment and management
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Q2. System design questions & LLD
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Basic questions about logical reasoning

Q1. Basic introduction Some puzzles Sport questions
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Q2. Basic communication check
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Q3. How was yourday
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Q4. Favourite sportof
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A task was given, where we had to solve two questions and was judged on the overall approach and coding skills.

Q1. Virtual Dom in reactjs
Ans. 
Virtual DOM is a lightweight copy of the actual DOM in React, used for efficient updates.
• Virtual DOM is a concept where a lightweight copy of the actual DOM is created in memory.

• React uses Virtual DOM to improve performance by minimizing actual DOM updates.

• When state or props change, React compares the Virtual DOM with the actual DOM and only updates the necessary parts.

• This helps in reducing the number of DOM manipula
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Q2. Performance improvement techniques in reactjs
Ans. 
Performance improvement techniques in ReactJS involve code splitting, lazy loading, optimizing render methods, and using memoization.
• Implement code splitting to load only necessary code for each route or component

• Utilize lazy loading to defer loading of non-essential components until they are needed

• Optimize render methods by avoiding unnecessary re-renders and using PureComponent or shouldComponentUpdate

• Use memoization...read more
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Q3. Promises and closures in JS
Ans. 
Promises and closures are important concepts in JavaScript for handling asynchronous operations and maintaining scope.
• Promises are objects representing the eventual completion or failure of an asynchronous operation.

• Closures are functions that have access to variables from their containing scope even after the parent function has finished executing.

• Promises can be used to handle asynchronous operations like fetching da...read more
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Code test to extend feature and cover tests

Q1. Related all tests and resume
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Q2. Resume discussion
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