Birlasoft Software Engineer Trainee Interview Questions and Answers

Q1. How to reverse a array, basic java
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Q1. Oops concepts to be known
Ans. 
Understanding of OOP concepts is essential for software development.
• Inheritance: Allows a class to inherit properties and behavior from another class.

• Encapsulation: Bundling data and methods that operate on the data into a single unit.

• Polymorphism: Ability to present the same interface for different data types.

• Abstraction: Hiding the complex implementation details and showing only the necessary features.
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Q2. What is inheritance
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Inheritance is a concept in object-oriented programming where a class inherits attributes and methods from another class.
• Allows a class to inherit attributes and methods from another class

• Promotes code reusability and reduces redundancy

• Creates a parent-child relationship between classes

• Derived class can access all public and protected members of the base class

• Example: Class 'Car' can inherit from class 'Vehicle' to reu
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Q3. Abstraction use to be explained
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Abstraction is the concept of hiding complex details and showing only the essential features of an object.
• Abstraction allows us to focus on what an object does, rather than how it does it

• It helps in reducing complexity and improving efficiency

• Example: A car dashboard abstracts the internal workings of the car and provides only essential information to the driver
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Based on logical reasoning, quantitative aptitude

Q1. Questions on OOPs, Testing, Types of testing
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It consists of general aptitude

3 questions were given to solve

Q1. It's was quite easy , they only asked about your resume
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Q2. Prepare well everything that you have mentioned in the resume
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Q1. It didn't get selected in this round
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First round was Aptitude test which contained questions from every major subject from CS/IT i.e., DBMS, OS, Computer Networks. It also had Maths aptitude and Verbal, and 2 coding questions.

Q1. Polymorphism and its types
Ans. 
Polymorphism is the ability of an object to take on many forms.
• Polymorphism allows objects of different classes to be treated as if they are of the same class.

• There are two types of polymorphism: compile-time (method overloading) and runtime (method overriding).

• Compile-time polymorphism is achieved through method overloading, where multiple methods have the same name but different parameters.

• Runtime polymorphism is ach...read more
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Q2. SQL Joins query
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Q1. I didn't get selected for this round but my friends told me that they just asked if you are comfortable with salary, bond and relocation. Also the lady HR asked them to define the room, tell her something ...read more
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It was great experience and all questions were not that though an average student having good apti practice can qualify the test

Q1. Here all questions were based on the contents of my resume. The technical questions were asked according to the skills that were on my resume.
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Q2. Explanation oops concepts?
Ans. 
Object-oriented programming concepts like inheritance, polymorphism, encapsulation, and abstraction.
• Inheritance: Allows a class to inherit properties and behavior from another class.

• Polymorphism: Ability to present the same interface for different data types.

• Encapsulation: Bundling of data with the methods that operate on that data.

• Abstraction: Hiding the complex implementation details and showing only the necessary fe
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Q3. Explain overriding and overloading?
Ans. 
Overriding is when a subclass provides a specific implementation of a method that is already provided by its parent class. Overloading is when multiple methods have the same name but different parameters.
• Overriding: Subclass provides specific implementation of a method from parent class. Example: Animal class has a method 'sound', Cat class overrides it with 'meow'.

• Overloading: Multiple methods with same name but diffe...read more
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Q1. Explain about your project?
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