Capgemini Software Developer Interview Questions, Process, and Tips

Q1. Method overring & method overloading?
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Q2. Gave small coding problem
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Q1. What are idempotent http methods?
Ans. 
Idempotent HTTP methods are methods that can be called multiple times without different outcomes.
• Idempotent methods do not have side effects on the server.

• GET, PUT, and DELETE are examples of idempotent HTTP methods.

• Idempotent methods are safe to retry in case of network failures.
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Q2. How to optimize the Db queries?
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Optimizing Db queries involves using indexes, minimizing data retrieval, and avoiding unnecessary joins.
• Use indexes on columns frequently used in WHERE clauses

• Minimize data retrieval by selecting only necessary columns

• Avoid unnecessary joins by denormalizing data when possible

• Use query optimization tools like EXPLAIN in MySQL to analyze query performance
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It included all aptitude

Contains all pseudo questions related to DSA

Q1. What is a class?
Ans. 
A class is a blueprint for creating objects in object-oriented programming.
• Defines the properties and behaviors of objects

• Can be used to create multiple instances of objects

• Encapsulates data and methods within a single unit
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Q2. What is an object?
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An object is a self-contained entity that consists of data and methods to manipulate that data.
• Objects are instances of classes in object-oriented programming.

• They have attributes (data) and methods (functions) to operate on the data.

• Objects can interact with each other through method calls.

• Example: In a car simulation program, a 'Car' object may have attributes like 'color' and 'speed', and methods like 'accelerate' a
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Q3. How the login page comes when clicks on some webpage icon like facebook?
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The login page is displayed when a user clicks on a webpage icon like Facebook by redirecting to a separate login page.
• Clicking on the webpage icon triggers a redirect to the login page

• The login page prompts the user to enter their credentials

• After successful login, the user is redirected back to the original webpage
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Q4. DDL and DML commands
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Q5. Polymorphism and method overriding?
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Q6. Entire opps in java
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Object-oriented programming in Java involves creating classes, objects, inheritance, polymorphism, and encapsulation.
• Classes are blueprints for objects, defining attributes and behaviors.

• Objects are instances of classes, representing real-world entities.

• Inheritance allows a class to inherit attributes and methods from another class.

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

• Encapsulat...read more
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Q1. What is servlet implement code
Ans. 
Servlet implement code is the code that defines the behavior of a servlet in a Java web application.
• Servlet implement code is written in Java and typically extends the HttpServlet class.

• It includes methods like doGet() and doPost() to handle HTTP GET and POST requests.

• Servlet implement code can interact with databases, process form data, and generate dynamic web content.
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Q2. Write jwt implementation methods
Ans. 
JWT implementation methods involve encoding, decoding, and verifying tokens for secure authentication.
• Use a library like jsonwebtoken to easily create and verify JWT tokens

• When creating a token, include a payload with user information and a secret key for signing

• To verify a token, decode it using the secret key and check the signature
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Q3. What is oops concets
Ans. 
Object-oriented programming concepts that focus on classes and objects.
• 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 and showing only the necessary features.

• ...read more
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Q4. What is rdbms and use
Ans. 
RDBMS stands for Relational Database Management System. It is a type of database management system that stores data in a structured format.
• Organizes data into tables with rows and columns

• Uses SQL for querying and managing data

• Enforces relationships between tables using foreign keys

• Examples include MySQL, PostgreSQL, Oracle
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Q5. What is microservies anduse
Ans. 
Microservices are a software development technique where applications are broken down into smaller, independent services that communicate with each other.
• Each microservice is responsible for a specific function or feature

• Microservices can be developed, deployed, and scaled independently

• Communication between microservices is typically done through APIs

• Examples: Netflix, Amazon, Uber
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It was pretty easy and quick

Q1. Ques related to dsa and oops
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Q2. What are your projects that you have worked on
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