Capgemini Software Engineer Interview Questions and Answers

Microservices communicate through APIs, messaging queues, and event-driven architectures for efficient data exchange.

• RESTful APIs: Microservices expose endpoints for HTTP requests, allowing services to communicate over the web. Example: A user service and an order service can interact via REST APIs.

• gRPC: A high-performance RPC framework that uses Protocol Buffers for serialization, enabling efficient communication...read more

A palindrome is a word, phrase, number, or sequence that reads the same backward as forward.

• Examples of palindromic words: 'level', 'radar', 'civic'.

• Examples of palindromic phrases: 'A man, a plan, a canal, Panama!'

• Palindromes can also be numbers, e.g., 121, 1331.

• They are often used in puzzles and word games.

Local variables are defined within a function, while global variables are accessible throughout the entire program.

• Local variables are declared inside a function or block and can only be accessed within that function.

• Global variables are declared outside of all functions and can be accessed from any part of the program.

• Example of a local variable: function example() { let localVar = 5; console.log(localVar); ...read more

C is a high-level programming language known for its efficiency and control, widely used in system and application software development.

• Developed in the early 1970s at Bell Labs.

• Supports procedural programming and low-level memory manipulation.

• Used for system programming, embedded systems, and application development.

• Example: A simple C program to print 'Hello, World!': #include <stdio.h> int main() { pr...read more

I prefer a location that fosters collaboration, innovation, and work-life balance, ideally in a tech hub.

• Proximity to tech companies: Being near industry leaders like Google or Amazon can provide networking opportunities.

• Access to talent: Locations with a strong tech community can facilitate collaboration and knowledge sharing.

• Work-life balance: Areas with good amenities and recreational options can enhance overal...read more

This program identifies the least occurring character in a given string, considering case sensitivity and ignoring spaces.

• Count Characters: Use a dictionary to count occurrences of each character in the string.

• Ignore Spaces: Ensure that spaces are not counted when determining the least occurring character.

• Find Minimum: Iterate through the dictionary to find the character with the minimum count.

• Return Result: Outpu...read more

Group employees by salary using data structures to organize and summarize employee information effectively.

• Data Structure: Use a dictionary or map to group employees by their salary, where the key is the salary and the value is a list of employees.

• Example: For employees with salaries 50000, 60000, and 50000, the output would be {50000: [Employee1, Employee3], 60000: [Employee2]}.

• Iterate through the employee list: ...read more

This question assesses your problem-solving skills and technical knowledge in software engineering.

• Understand the problem statement clearly before diving into coding.

• Break down the problem into smaller, manageable parts.

• Use examples to illustrate your thought process, like using arrays or data structures.

• Discuss potential edge cases and how you would handle them.