Natsoft Corporation Interview Questions and Answers

Q1. I was asked some questions related to Node.js, WebSockets, and streams.
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Coding Que - Find minimum in a rotated sorted array with duplicates.

Q1. What are oops concepts in java, explain real time scenario
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OOPs concepts in Java include inheritance, polymorphism, encapsulation, and abstraction.
• Inheritance allows a subclass to inherit properties and methods from a superclass.

• Polymorphism allows objects to take on multiple forms and behave differently based on their context.

• Encapsulation hides the implementation details of an object and only exposes necessary information.

• Abstraction allows for the creation of abstract class...read more
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Q2. Uses of interface, inheritance
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Interfaces define contracts for behavior, while inheritance allows for code reuse and polymorphism.
• Interfaces allow for loose coupling and abstraction, enabling multiple implementations of the same behavior.

• Inheritance allows for code reuse and extension of existing classes, reducing code duplication.

• Polymorphism allows objects of different classes to be treated as if they were of the same class, simplifying code and i
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Q3. SQL query for join of tables
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SQL query for joining tables
• Use JOIN keyword to combine two or more tables based on a related column

• Specify the columns to be selected using SELECT keyword

• Use ON keyword to specify the condition for joining the tables

• Different types of joins include INNER JOIN, LEFT JOIN, RIGHT JOIN, and FULL OUTER JOIN
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Q4. Java concepts used in your project
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Used Java concepts such as inheritance, polymorphism, and exception handling in my project.
• Implemented inheritance to create a base class and derived classes with specific functionalities.

• Utilized polymorphism to allow objects of different classes to be treated as if they were of the same class.

• Implemented exception handling to handle errors and prevent program crashes.

• Used interfaces to define a set of methods that a ...read more
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Q5. Overloading vs overriding, practical uses
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Overloading is having multiple methods with the same name but different parameters. Overriding is having a method in a subclass with the same name and parameters as a method in the superclass.
• Overloading is used to provide different ways to call a method with different parameters

• Overriding is used to provide a specific implementation of a method in a subclass

• Overloading is resolved at compile-time while overriding is r...read more
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Q1. Introducing your self, and some basic technical questions.
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Q1. Basic core java questions like 1. Why object oriented? 2. Oops concept 3.diffrence between method overloading and overriding 4.static members 5.Occurance of a string 6.why immutable string is? 7.construc...read more
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Q2. Basic program in array
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Q1. 1. How to fetching data from html 2. Service about rest API 3. Difference between doget and dopost 4. Sql sub query 5. Collection question
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Q1. Basic question about company and role
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Very easy roundand is it a program to implement Parallel Merge Sort and can measure the performance

Coding and decoding reasoning for the shield season is over now I am not sure

College first day experience:
just tell the breif abut your experience better dont tell about unwanted stuff

Q1. Self intro: name: educational details: skills: acheivements: brief about your personality:
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Q2. Why you choose this:
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I chose this software trainee position because of my passion for coding and my desire to learn and grow in the software development field.
• I have always been interested in technology and computers.

• I enjoy problem-solving and finding creative solutions.

• I have a strong foundation in programming languages like Java and Python.

• I believe this trainee position will provide me with valuable hands-on experience and mentorship.

• I...read more
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Q1. Prepare process related questions
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Q2. How do u used to work ? What was profile?
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Q3. Some examples of what we used to do?
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