Mphasis Interview Questions, Process, and Tips

Q1. How to handle the exceptions globally in rest api Springboot
Ans. 
Handle exceptions globally in Springboot REST API
• Use @ControllerAdvice annotation to define global exception handling for all controllers

• Create a class annotated with @ControllerAdvice and define methods to handle specific exceptions

• Use @ExceptionHandler annotation to specify which exceptions the method should handle

• Return appropriate HTTP status codes and error messages in the exception handling methods
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Q2. Micro services design pattern and example
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Microservices design pattern involves breaking down a large application into smaller, independent services.
• Each microservice is responsible for a specific function or feature

• Communication between microservices is typically done through APIs

• Microservices can be deployed independently, allowing for easier scalability and maintenance

• Examples include Netflix (uses microservices for different functionalities like recommenda...read more
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Q3. Add 10% hike for the employees who are more than 5 years of experience using stream API.
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Q4. Map, flatmap method difference in stream
Ans. 
Map method transforms each element in a stream, while flatMap method transforms each element into a stream and then flattens the result.
• Map method applies a function to each element in the stream and returns a new stream with the transformed elements.

• FlatMap method applies a function that returns a stream for each element in the original stream, then flattens these streams into a single stream.

• Example: Using map to con...read more
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Q5. How to handle customized exceptions in controller advice with example code.
Ans. 
Handling customized exceptions in controller advice with example code
• Create a custom exception class that extends RuntimeException

• Create a controller advice class to handle exceptions globally

• Use @ExceptionHandler annotation in the controller advice class to handle specific exceptions

• Return a custom error response with appropriate status code and message
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Q6. What annotations are included in @SpringbootApplication annotation
Ans. 
The @SpringBootApplication annotation includes @Configuration, @EnableAutoConfiguration, and @ComponentScan annotations.
• Includes @Configuration annotation to specify that the class can be used by the Spring IoC container as a source of bean definitions.

• Includes @EnableAutoConfiguration annotation to enable Spring Boot's auto-configuration feature.

• Includes @ComponentScan annotation to specify the base packages to scan f
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Java, Appium, selenium basics

Q1. Java logical programs coding
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Q2. Detail discussion kn projects worked
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Q1. How can you reverse a string that is stored in an array?
Ans. 
To reverse a string stored in an array, iterate through each string and reverse it character by character.
• Iterate through each string in the array

• For each string, use a loop to reverse the characters

• Store the reversed string back in the array
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Q2. Oops
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Q1. How do you feel about policies and location constraints?
Ans. 
I am comfortable with policies but prefer flexibility in location constraints.
• I believe policies are necessary for maintaining order and consistency in a work environment.

• I am open to following company policies and procedures to ensure smooth operations.

• I prefer flexibility in location constraints as it allows for a better work-life balance and increased productivity.

• For example, remote work options can be beneficial f...read more
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Q2. Okay with joining mphasis?
Ans. 
Yes, I am okay with joining Mphasis.
• I am excited about the opportunity to work at Mphasis.

• I have researched the company and am impressed with their work culture.

• I am ready to contribute my skills and expertise to the team at Mphasis.
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Q1. Opps concept on spring boot
Ans. 
OOPs concepts in Spring Boot refer to the principles of Object-Oriented Programming applied in the development of Spring Boot applications.
• Inheritance: Allows classes to inherit attributes and methods from other classes.

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

• Polymorphism: Allows objects to be treated as instances of their parent class.

• Abstraction: Hides the implementation d...read more
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Q2. How docker works and kunermates
Ans. 
Docker is a platform for developing, shipping, and running applications in containers. Kubernetes is an open-source system for automating deployment, scaling, and management of containerized applications.
• Docker allows developers to package applications and their dependencies into containers for easy deployment and scalability.

• Kubernetes helps in automating the deployment, scaling, and management of containerized applic...read more
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Mainly About Simple array question

Q1. About collections in Java
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Q2. Spring Boot questions
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Q1. Explain Framework
Ans. 
A framework is a set of guidelines, tools, and libraries used to develop and maintain software applications.
• Provides structure and guidelines for development

• Promotes code reusability and maintainability

• Includes libraries and tools for common tasks

• Supports automation and scalability

• Examples: Selenium WebDriver for web automation, TestNG for test execution
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Q2. Code to find second largest number in array without sorting
Ans. 
Use two variables to keep track of the largest and second largest numbers in the array.
• Iterate through the array and compare each element with the largest and second largest variables.

• Update the variables accordingly to find the second largest number.

• Return the second largest number once the iteration is complete.
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Q3. Find xpath of product on amazon
Ans. 
The xpath of a product on Amazon can be found by inspecting the HTML code of the product page.
• Right click on the product on Amazon and select 'Inspect' to view the HTML code

• Locate the unique identifier of the product, such as class name or id

• Construct the xpath using the unique identifier and other relevant attributes
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Q4. Oops concept in java
Ans. 
Object-oriented programming concept in Java
• Encapsulation: bundling data and methods that operate on the data

• Inheritance: creating new classes using existing classes

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