EPAM Systems Software Engineer Interview Questions, Process, and Tips

Q1. Three sum leet code, left view binary tree, java8 features
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Q1. Project architecture, spring boot ,spring
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Q1. Basic of oops concept
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Q2. Event handler in dotnet
Ans. 
Event handler in dotnet is a function that responds to events triggered by user actions or system events.
• Event handlers are used to handle events like button clicks, mouse movements, etc.

• In .NET, event handlers are typically defined using delegates.

• Example: handling a button click event in a Windows Forms application.
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Q3. Basic of c# oop
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Q4. Abstract class and methods
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Q5. How to optimise sp
Ans. 
Optimizing SP involves improving performance and efficiency of stored procedures in a database.
• Identify and eliminate unnecessary or redundant code

• Use appropriate indexing to speed up data retrieval

• Avoid using cursors and loops whenever possible

• Consider parameterizing queries to improve execution plan caching

• Regularly monitor and analyze performance metrics to identify bottlenecks
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25 questions medium level questions

3 questions with medium level data strucures

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Q1. I was rejected in gd round so i dont know
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Q1. I was rejected in gd round so i dont know
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Q1. They asked mostly on java 8 features, core java, junit etc. Prepare well for streams.
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Q2. They asked two DSA question one is N meetings in room i was not able answer this then they asked Next Greater Element this one i answered.
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Q1. Here we discussed about my previous projects, Design of that project and how we deploy and all. High level design of our project.
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Medium level questions

Q1. Find duplicates in a string
Ans. 
Use a hash set to find duplicates in a string efficiently.
• Create a hash set to store characters as you iterate through the string.

• If a character is already in the hash set, it is a duplicate.

• Return the set of duplicates found.
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Q2. Balanced parenthesis
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Q1. Shift related questions
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Q2. Compensation about current company
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