Decisivedge Software Support Engineer Interview Questions and Answers

Q1. Basic Linux commands and practical programming stuff!
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Q1. Architecture of web application, out of memory error
Ans. 
The architecture of a web application can affect memory usage and cause out of memory errors.
• The architecture should be designed to minimize memory usage

• Use caching and compression techniques to reduce memory usage

• Implement garbage collection to free up memory

• Consider using a load balancer to distribute traffic and reduce memory usage on individual servers
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Q2. Client, web server, app server , database server Close connections properly
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Q1. What are your salary expectations?
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It was on sql,plsql

Q1. Basic sql questions,joins
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Q1. Strenths,weakness,salary expectation
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Q1. What are custom hooks in React, and what are their use cases? Additionally, can you provide an example of a custom hook that performs an API call and utilizes the retrieved data?
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Q2. What is the difference between useMemo and useCallback in React?
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Q3. What is the difference between class-based components and functional components in React?
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Q4. How can you implement the lifecycle of a React component in a functional component?
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Q5. What are the various state management techniques available in React?
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Q6. What is the architecture of Redux, and what purposes do middlewares serve within it?
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Q7. What is hoisting in JavaScript?
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Q8. What is event bubbling in JavaScript?
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Q9. What are block scope and function scope in JavaScript?
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Q10. Have you had experience working with semantic tags in HTML?
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Q11. What are the various methods for creating an object in JavaScript?
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Q12. What are the differences between shallow copy and deep copy in JavaScript?
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Q13. What will be the output of the following JavaScript code fragment: `const a; function test() { console.log(a); }; test();`?
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Q14. How can you use CSS to arrange elements in a row and column layout?
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Q15. Have you utilized CSS preprocessors, and if so, which ones?
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Q16. If I have assigned different colors to an ID and a class and applied both to the same element, which color will be applied based on CSS specificity precedence?
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Q1. What is the design of the microservices implemented in your current project?
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Q2. Can you provide a program that prints the second largest number in both an array and a list, illustrating implementations using streams as well as traditional methods?
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Aptitude test was simple and basic questions were asked

They gave us 3 codes out of which 2 should be written correct

Q1. At first I was in trouble logging in due to there cookies specifications then finally panel member had accepted my joining request after waiting in the lobby for 3 and half hours. The approach was friend...read more
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Q2. Machine learning types.
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