RSL Private Limited Software Engineer Interview Questions and Answers

Coding Test at round 1 includes questions like sorting the array, addition of array elements,
Javascript HTML CSS Basic Questions

Q1. What is React Lazy Loading, and what are the reasons for implementing it?
Ans. 
React Lazy Loading is a technique used to improve performance by loading components only when they are needed.
• Improves performance by reducing initial load time of the application

• Helps in splitting the code into smaller chunks which can be loaded on demand

• Reduces the amount of code that needs to be loaded upfront, leading to faster initial rendering

• Useful for applications with large codebases or complex UIs
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Q2. What is React Lazy Loading, and what are the reasons for implementing it?
Ans. 
React Lazy Loading is a technique used to improve performance by loading components only when they are needed.
• Improves performance by reducing initial load time of the application

• Helps in splitting the code into smaller chunks which can be loaded on demand

• Reduces the amount of code that needs to be loaded upfront, leading to faster initial rendering

• Commonly used with React Suspense to handle loading states
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Q3. What is caching in Node.js, and what are the benefits of using Redis for caching?
Ans. 
Caching in Node.js involves storing frequently accessed data in memory for faster retrieval. Redis is a popular caching solution.
• Caching in Node.js helps improve performance by reducing the need to fetch data from slower sources like databases.

• Redis is often used for caching in Node.js due to its fast in-memory data storage capabilities.

• Benefits of using Redis for caching include faster data retrieval, reduced load on ...read more
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