Bajaj Finserv Software Development Engineer Intern Interview Questions and Answers

On hacker rank duration was 90 min and 3 que to attempt and pass all the test cases

Q1. About basic fundamentals about cn and oops and funfamental que and at the end a 5 min hr session by the interviewer itself
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Q2. What is adressing mode and its types
Ans. 
Addressing mode is a technique used in computer architecture to specify how to calculate the effective address of an operand.
• Addressing mode determines how the CPU accesses data from memory

• Types of addressing modes include direct, indirect, indexed, and register

• Examples: direct addressing mode - MOV A, 1000H, indirect addressing mode - MOV A, [BX], indexed addressing mode - MOV A, [BX+SI], register addressing mode - MO
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Q3. What is tcp osi difference
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TCP is a transport layer protocol while OSI is a reference model for network communication.
• TCP is a protocol responsible for establishing and maintaining a connection between two devices.

• OSI is a conceptual framework that standardizes the functions of a telecommunication or computing system into seven abstraction layers.

• TCP operates at the transport layer (Layer 4) of the OSI model.

• OSI model includes layers like physic...read more
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Q4. Reverse linkedlist in 3 steps
Ans. 
Iterate through the linked list and reverse the pointers in 3 steps
• Iterate through the linked list and keep track of the previous, current, and next nodes

• Update the pointers to reverse the direction of the nodes

• Repeat the process until the end of the linked list is reached
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DP graphs strings it was good

Q1. Reverse a linkded list
Ans. 
Reverse a linked list by changing the direction of pointers
• Start with three pointers: current, previous, and next

• Iterate through the list, updating pointers to reverse the direction

• Return the new head of the reversed list
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Q2. Print fibonacci series
Ans. 
The Fibonacci series is a sequence of numbers where each number is the sum of the two preceding ones.
• Start with two variables initialized to 0 and 1

• Loop through desired number of iterations, adding the previous two numbers to get the next number

• Print or store each number in the series
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Q1. Dependency injection
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Q2. What are oops concepts
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: ability of a class to inherit properties and behavior from another class

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

• Abstraction: hiding the complex implementation details
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Q1. How do you define clean code?
Ans. 
Clean code is well-organized, easy to read, and maintainable code that follows best practices.
• Clean code is easy to read and understand by other developers.

• It follows consistent naming conventions for variables, functions, and classes.

• Clean code is well-organized with proper indentation and spacing.

• It avoids unnecessary complexity and duplication.

• Clean code is modular and follows the single responsibility principle.

• Exa...read more
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Q2. How to better test your code?
Ans. 
To better test your code, use a combination of unit tests, integration tests, regression tests, and automated testing.
• Write unit tests to test individual components or functions in isolation.

• Perform integration tests to test how different components work together.

• Implement regression tests to ensure that new code changes do not break existing functionality.

• Utilize automated testing tools to run tests quickly and effici...read more
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Logical,quants,coding

Q1. Java,sql,testing,sdlc
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Q2. What is method overriding?
Ans. 
Method overriding is a feature in object-oriented programming where a subclass provides a specific implementation of a method that is already provided by its parent class.
• In method overriding, the method in the subclass has the same name, return type, and parameters as the method in the parent class.

• The purpose of method overriding is to provide a specific implementation of a method in the subclass that is different fr...read more
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Q3. What is exception handling in java?
Ans. 
Exception handling in Java is a mechanism to handle runtime errors and prevent program crashes.
• Exceptions are objects that represent errors or unexpected events during program execution.

• Java provides try, catch, and finally blocks to handle exceptions.

• try block contains the code that may throw an exception, catch block handles the exception, and finally block is executed regardless of an exception.

• Example: try { // cod...read more
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Q1. Normal questions
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Q2. Why you want to join our company?
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