Koch Business Solutions Team Lead Interview Questions and Answers

Q1. Dotnet full stack developer questions
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Q1. Managerial round questions with normal questions
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Q1. HR round with normal HR question
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Q1. Remove duplicates from the list
Ans. 
Remove duplicates from an array of strings
• Create a new set to store unique values

• Iterate through the array and add each element to the set

• Convert the set back to an array to remove duplicates
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Q2. Inheritance related theoretical
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Q1. Share roles n responsibilities
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32 Mcq questions include aptitude and scenario questions

Q1. SQL n manual testing
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Q1. Write a join in sql
Ans. 
A SQL join is used to combine rows from two or more tables based on a related column between them.
• Use the JOIN keyword to specify the tables to be joined

• Use the ON keyword to specify the column to join on

• Types of joins include INNER JOIN, LEFT JOIN, RIGHT JOIN, and FULL JOIN
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Q2. Java related many questions
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Q1. Explain your project in details
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Q2. Write 2 any joins in sql
Ans. 
Two common SQL joins are INNER JOIN and LEFT JOIN.
• INNER JOIN: Returns rows when there is at least one match in both tables.

• LEFT JOIN: Returns all rows from the left table and the matched rows from the right table.
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Q1. About current project
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Q1. What are oops concept
Ans. 
Object-oriented programming concepts that focus on data encapsulation, inheritance, polymorphism, and abstraction.
• Encapsulation: bundling data and methods that operate on the data into a single unit (class)

• Inheritance: allows a class to inherit properties and behavior from another class

• Polymorphism: ability for objects of different classes to respond to the same message

• Abstraction: hiding the complex implementation det
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Q1. Good to learn new technology base on you are working technology
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Q2. Know all the technology updates as per the new generation
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Q1. Know to Visual studio and TFS
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Q2. Power Apps, PowerBI and Power Automate
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Q1. Tell me about your self, why you want to join, what do you know about NIQ,case study on people management
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