Capgemini Engineering Senior Software Developer Interview Questions and Answers

Q1. Microservice Architecture
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Q2. Rest api vs soap api
Ans. 
REST API is lightweight, flexible, and widely used, while SOAP API is more rigid and heavy.
• REST API uses standard HTTP methods like GET, POST, PUT, DELETE, while SOAP API uses XML for communication.

• REST API is stateless and can be cached, making it faster, while SOAP API is stateful and requires more bandwidth.

• REST API is easier to implement and understand, while SOAP API has more built-in security features.

• Examples: R
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Q1. What is dependancy Injection?
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Dependency Injection is a design pattern where the dependencies of a class are provided from the outside rather than created within the class itself.
• Allows for easier testing by providing mock dependencies

• Promotes loose coupling between classes

• Improves code reusability and maintainability

• Commonly implemented using frameworks like Spring in Java
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Q2. How We maintain security in Application?
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Maintaining security in applications involves implementing encryption, authentication, authorization, and regular security audits.
• Implement encryption to protect data in transit and at rest

• Use strong authentication mechanisms like multi-factor authentication

• Implement proper authorization controls to restrict access to sensitive data

• Regularly conduct security audits and penetration testing to identify vulnerabilities
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Basic php questions and laravel framework

Q1. Basic reactjs question
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Q1. Json related question
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Q1. Basic java , oops
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Q2. Sql , project, behavioral
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Q1. What are the OOPs concept
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OOPs concepts are fundamental principles of Object-Oriented Programming, including Inheritance, Encapsulation, Polymorphism, and Abstraction.
• 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 imple...read more
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Q1. Salary discussion
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Three question were given , one was to implement singleton class, other one was easy array question and the third one was was also easy medium which was testing HashMap knowledge
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Q1. Asked to explain the answers you wrote in first round.
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Q2. Some conceptual questions of java like string pools, solid principles, etc.
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Q1. Sort of Managerial Technical round : Core Java
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Q2. Spring boot and about deployment tools.
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Q1. Why do want to join us?
Ans. 
I am excited about the innovative projects and collaborative team environment at your company.
• Impressed by company's reputation in the industry

• Excited about the opportunity to work on cutting-edge projects

• Looking forward to collaborating with talented team members
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Q2. Have you heard of what your company does and at the end compensation discussion.
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It was 2 hours, to solve problems in javascript and html css.

Q1. They asked projects related and state management questions.
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Q2. Get length of string without using native method
Ans. 
Iterate through each character in the string and count the number of characters.
• Create a function that takes a string as input

• Initialize a counter variable to 0

• Iterate through each character in the string and increment the counter variable

• Return the counter variable as the length of the string
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Q3. Local storage questions
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Q4. Netflix app lld
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