Exinent Info Solutions Interview Questions and Answers

Q1. What is oops concept with real life example
Ans. 
OOPs concept is a programming paradigm based on the concept of objects, which can contain data in the form of fields and code in the form of procedures.
• Encapsulation: bundling data and methods that operate on the data into a single unit. Example: a car object with properties like color and methods like start() and stop().

• Inheritance: allows a class to inherit properties and behavior from another class. Example: a class...read more
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Q2. Real life scenario example of oops
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A real life scenario example of OOPs is modeling a car as an object with properties and methods.
• Create a Car class with attributes like make, model, year, color

• Define methods like start(), accelerate(), brake()

• Instantiate multiple car objects and perform actions on them
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Q3. What is collections
Ans. 
Collections in Java are classes and interfaces that provide a way to store and manipulate groups of objects.
• Collections provide a way to work with groups of objects in Java

• They include classes like ArrayList, LinkedList, HashMap, etc.

• Collections framework provides interfaces like List, Set, Map, etc.

• Collections offer methods for adding, removing, and accessing elements in a group
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Q1. Tell me about yoursef
Ans. 
I am a passionate Java developer with 5 years of experience in developing web applications and implementing software solutions.
• 5 years of experience in Java development

• Strong knowledge of web application development

• Experience in implementing software solutions

• Passionate about coding and problem-solving
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Q2. Tell me about ur project
Ans. 
Developed a web application for online shopping with user authentication and payment gateway integration.
• Used Java Spring framework for backend development

• Implemented RESTful APIs for communication between frontend and backend

• Integrated Stripe API for secure payment processing
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Q1. Difference between Vuejs and Reactjs
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Vuejs is simpler and easier to learn, while Reactjs is more flexible and widely used in industry.
• Vuejs is simpler and easier to learn for beginners

• Reactjs is more flexible and widely used in industry

• Vuejs has a more gradual learning curve compared to Reactjs

• Reactjs has a larger ecosystem and community support
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Q2. Difference between mssql and Postgressql
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MSSQL is a proprietary database management system developed by Microsoft, while PostgreSQL is an open-source relational database management system.
• MSSQL is developed by Microsoft, while PostgreSQL is open-source.

• MSSQL is a proprietary system, while PostgreSQL is free and open-source.

• MSSQL has a larger market share in the industry compared to PostgreSQL.

• PostgreSQL has a strong reputation for reliability, data integrity,...read more
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Q1. Find unique records & Difference between union & union all & joins
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Q2. What is Indexing & it's types.
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Q1. Delete all the previous records and keep only latest one
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Q2. Window function.
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First there will be a topic given to you to write an article of length 300-400 words in 15 mins. This article writing is to check your knowledge of English language.
Then there is a 45 mins round test in which 40 questions will be asked.
20 Technical and 20 Programming.
The programming questions will be from C++, and you are required to choose the correct output of the given C++ program.
The technical aptitude questions were medium to hard.

Q1. It's a 1:30 hr round. In this part, there will be 4 coding questions from arrays topic which you can solve with any programming language you know. Along with this, you will have 2 questions from SQL and e...read more
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It was a handson coding test contains 4 coding questions on prime numbers patterns and array it was easy

Q1. All questions based on resume on javascript java and react and mainly on projects
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Q1. 3 Basic DSA Questions
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Q2. 1st Math based coding question
Ans. Can solve with normal loops and some if-else statements.
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Q3. 2nd String based
Ans. String manipulation and Traversal meanwhile keep tracking the max answer.
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Q4. 3rd Array Sorting Algorithm
Ans. 
Quick Sort is a popular in-place sorting algorithm that uses divide and conquer approach.
• Divide the array into two sub-arrays based on a pivot element

• Recursively sort the sub-arrays

• Combine the sorted sub-arrays to get the final sorted array

• Time complexity: O(nlogn) in average case and O(n^2) in worst case

• Space complexity: O(logn)

• Example: [5, 2, 9, 3, 7, 6, 8] -> [2, 3, 5, 6, 7, 8, 9]
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Q5. There was an Introduction too in starting.
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Q1. Introduce Yourself
Ans. 
I am a software enthusiast with a passion for coding and problem-solving.
• I have a degree in Computer Science and Engineering.

• I have experience in programming languages such as Java, Python, and C++.

• I have worked on projects involving web development, data analysis, and machine learning.

• I am a quick learner and enjoy working in a team environment.
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Q2. Why should I hire you?
Ans. 
I am a quick learner with a passion for software development and a strong work ethic.
• I have a solid understanding of programming concepts and experience with multiple programming languages.

• I am a team player and enjoy collaborating with others to solve problems.

• I am highly motivated and always strive to improve my skills and knowledge.

• I have completed several projects on my own and am eager to apply my skills in a prof
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Q1. Normal questions asked regarding day to day responsibilities of a project manager.
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Q1. Salary Negotiation
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