Capgemini Engineering Senior Software Engineer Interview Questions and Answers

Abstraction focuses on hiding implementation details, while interface defines a contract for classes to implement.

• Abstraction is about hiding complexity and showing only relevant details.

• Interface defines a set of methods that a class must implement.

• Abstraction can be achieved through abstract classes or interfaces.

• Abstraction allows for flexibility and reusability in code.

• Interfaces can be used to achieve multipl...read more

OOP pillars include encapsulation, inheritance, and polymorphism for organizing code into reusable and maintainable components.

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

• Inheritance: Creating new classes based on existing classes, allowing for code reuse and hierarchy.

• Polymorphism: Objects of different classes can be treated as objects of a common superclass, enabl...read more

Branching in software development allows teams to work on features independently, facilitating collaboration and version control.

• Branching enables multiple developers to work on different features simultaneously without conflicts.

• Common branching strategies include feature branches, release branches, and hotfix branches.

• Example: A feature branch named 'feature/login' can be created for developing a new login featu...read more

To sort a single linked list, we can use merge sort or quick sort algorithm.

• Merge sort: divide the list into two halves, sort each half recursively, and merge the sorted halves.

• Quick sort: partition the list into two sub-lists, one with elements smaller than a pivot and the other with elements larger than the pivot, and recursively sort each sub-list.

• Selection sort: repeatedly find the minimum element in the unsor...read more

Kubernetes is an orchestration tool while Docker is a containerization platform.

• Docker is used to create and manage containers while Kubernetes is used to manage containerized applications.

• Kubernetes provides features like load balancing, scaling, and self-healing while Docker does not.

• Docker is used to package an application and its dependencies into a container while Kubernetes is used to manage and deploy those...read more

HIL testing stands for Hardware-in-the-Loop testing, a type of testing used in the development of complex systems.

• HIL testing involves testing a system or component in a simulated environment that includes real hardware components.

• It is used to test complex systems such as automotive systems, aerospace systems, and industrial control systems.

• HIL testing can help identify issues early in the development process, re...read more