Infosys Interview Questions, Process, and Tips

Q1. Introduce yourself
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Q2. Explain the project you are working with
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I am currently working on a project to implement a new customer relationship management system for our client.
• Analyzing client requirements and designing a customized CRM solution

• Collaborating with developers to build and test the system

• Training client staff on how to use the new CRM system
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Q3. Dependency Injections
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Q4. OOPs Concept in detail
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OOPs stands for Object-Oriented Programming. It is a programming paradigm based on the concept of objects.
• OOPs focuses on creating objects that contain both data and methods to manipulate that data.

• Encapsulation is a key principle in OOPs, where data is kept private and only accessible through public methods.

• Inheritance allows classes to inherit attributes and methods from other classes.

• Polymorphism allows objects to b...read more
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Q5. Action Filters and Middlewares
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Q6. MVC architecture and design patterns
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Q7. Solid principles and how they are used in project
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SOLID principles are design principles used in software development to make software more maintainable, flexible, and scalable.
• S - Single Responsibility Principle: A class should have only one reason to change.

• O - Open/Closed Principle: Software entities should be open for extension but closed for modification.

• L - Liskov Substitution Principle: Objects of a superclass should be replaceable with objects of its subclasse...read more
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Q1. Managerial Round
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Q2. Introduce yourself
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Q3. Challenges you faced during the project
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Managing conflicting stakeholder priorities and tight deadlines
• Balancing the needs and expectations of different stakeholders

• Prioritizing tasks to meet project deadlines

• Communicating effectively to manage expectations and resolve conflicts
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Q4. If you find a bug in production system how will you handle it
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I would immediately notify the appropriate team, document the bug, and work on a fix to deploy as soon as possible.
• Notify the appropriate team or individual responsible for handling production issues

• Document the bug thoroughly, including steps to reproduce and impact on system

• Work on a fix or workaround to deploy as soon as possible

• Communicate with stakeholders about the issue and resolution progress
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Q1. Salary discussion
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Coding skill is very knowledgeable skill

Solving the problem of code assessment with proper logic.

Discuss a topic with many people to identify both positive and negative points

Aptitudes require strong logical thinking skills.

What about codding is telling for code rount

Q1. I recently appeared for an interview at Infosys for the Senior System Engineer (Spring Boot) role. The interview focused on core Java concepts, multithreading, and functional programming, along with some c...read more
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Q1. Component lifecycle
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Q2. What is DOM tree?
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DOM tree is a hierarchical representation of HTML elements in a web page.
• DOM stands for Document Object Model.

• It is a tree-like structure where each node represents an HTML element.

• The DOM tree is created by the browser when a web page is loaded.

• It allows JavaScript to manipulate the content, structure, and style of a web page.
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Q3. What is the difference between props and state?
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Props are immutable and passed from parent component, while state is mutable and managed within the component.
• Props are read-only and cannot be modified by the component receiving them.

• State is mutable and can be changed by the component that owns it.

• Props are passed from parent to child components, while state is managed within the component itself.

• Example: Props can be used to pass data from a parent component to a c...read more
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Q4. What is redux and when to use it and when not to use it?
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Redux is a predictable state container for JavaScript apps. It is used to manage application state in a centralized way.
• Use Redux when you have complex state management needs in your application.

• Redux is helpful for large applications with many components that need access to the same state.

• Avoid using Redux for simple applications with minimal state management requirements.

• Consider using React's built-in state manageme...read more
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Q5. Two arrays passed to one function, then remove the elements passed from source array and present in another array
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Remove elements from source array present in another array passed to a function
• Loop through elements in source array and check if they exist in the other array

• If an element is found in both arrays, remove it from the source array
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Q1. What is DOM tree

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DOM tree is a hierarchical representation of HTML elements in a web page.

• DOM stands for Document Object Model

• It is a tree-like structure where each node represents an HTML element

• The root node is the element, followed by and elements

• Nodes can have parent-child relationships, siblings, and descendants

• JavaScript can manipulate the DOM to dynamically update the content and structure of a web page

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