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

Experienced software engineer with a strong background in developing scalable applications and leading technical teams.

• Over 8 years of experience in software development, specializing in full-stack web applications.

• Proficient in languages such as Java, Python, and JavaScript, with frameworks like Spring and React.

• Led a team of 5 engineers in a project that improved application performance by 30%.

• Strong understandi...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

To reverse a single linked list, iterate through the list and change the direction of the pointers.

• Create three pointers: previous, current, and next

• Set current to the head of the linked list

• Iterate through the list, setting next to the next node, then setting current's next to previous

• Move previous and current pointers one node forward

• Return the new head of the linked list

To create a 1GB file in Python, use the 'os' module and write random data to the file.

• Import the 'os' module

• Use the 'os.urandom()' function to generate random data

• Open a file using the 'open()' function and write the data to it

• Repeat until the file size reaches 1GB

dSPECE is not a known term or acronym in the software engineering field.