Epsilon DOT NET Developer Interview Questions and Answers

Q1. Shallow copy and deep copy
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Q2. What is Pure component
Ans. 
A Pure component is a component in React that does not have any state or lifecycle methods, resulting in improved performance.
• Pure components are used to prevent unnecessary re-renders in React applications.

• Pure components implement shouldComponentUpdate method with shallow comparison of props and state.

• Examples of Pure components include functional components and class components that extend PureComponent class.
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Q1. How does consumer, producer work in kafka
Ans. 
Consumers read data from topics, while producers write data to topics in Kafka.
• Consumers subscribe to topics to read messages from them

• Producers publish messages to topics for consumers to read

• Consumers can be part of a consumer group to scale out consumption

• Producers can specify key for messages to control partitioning
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Q1. Basic JavaScript and React.js questions
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Q2. Questions on functions, hooks and DOM
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Q3. Questions on SSR
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Q4. Questions on strings and arrays
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Api related questions

Q1. Project Explain
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Project Explain is a question where you are asked to describe a project you have worked on in detail.
• Provide an overview of the project including its purpose and goals

• Explain the technologies used and your role in the project

• Discuss any challenges faced and how they were overcome

• Highlight the outcomes and impact of the project
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Basic coding questions And logical questions

Simple program for mathematics

Q1. Mostly asked on .net core Addsingleton,Addtransient,Scoped ,Middleware
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Q2. Coding question : Fibonacchi series ,finding avrage salary
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Q1. Who do you test your django apps?
Ans. 
I test my Django apps using automated testing tools and manual testing methods.
• I use Django's built-in testing framework to write unit tests for individual components of the app.

• I also use tools like pytest and Selenium for automated testing of the app's functionality.

• I perform manual testing to ensure the app works as expected in real-world scenarios.

• I use tools like Django Debug Toolbar to identify and fix any perfor
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Q2. Count the number of vowels in a string.
Ans. 
Count the number of vowels in a given string.
• Iterate through each character in the string and check if it is a vowel (a, e, i, o, u).

• Increment a counter for each vowel found.

• Return the total count of vowels in the string.
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