Michelin Software Engineer Interview Questions and Answers

Q1. How would you preprocess the raw data
Ans. 
Preprocessing raw data involves cleaning, transforming, and organizing data to make it suitable for analysis.
• Remove any irrelevant or duplicate data

• Handle missing values by imputation or deletion

• Normalize or standardize numerical data

• Encode categorical variables using techniques like one-hot encoding

• Feature scaling for machine learning algorithms

• Perform text preprocessing like tokenization and stemming
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Q2. How would you specify a solution that has been already existing
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Specify the existing solution by documenting its architecture, components, technologies used, and any modifications made.
• Document the architecture of the solution, including high-level components and their interactions

• List the technologies used in the solution, such as programming languages, frameworks, and databases

• Describe any modifications or customizations made to the existing solution

• Include any performance metric...read more
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Q1. Embedded qns and oops qns
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Q2. What is virtual function
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A virtual function is a function in a base class that is declared using the keyword 'virtual' and can be overridden by a function with the same signature in a derived class.
• Virtual functions allow for dynamic polymorphism in object-oriented programming.

• They are used to achieve runtime polymorphism by allowing a function to be called based on the type of object it is called on.

• Virtual functions are declared in a base cl...read more
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Q3. What is polymorphism
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Polymorphism is the ability of a function or method to behave differently based on the object it is acting upon.
• Polymorphism allows objects of different classes to be treated as objects of a common superclass.

• It enables a single interface to be used for different data types or classes.

• Examples include method overloading and method overriding in object-oriented programming.
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Q4. Please don't attend this interview
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Q5. Idon'tknow hahab
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In depth coding test with bit level operations and memory concepts

C++ coding test with focus on design patterns

Q1. Manager round about previous experience and working project
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Q2. What is your experience in feature development
Ans. 
I have extensive experience in feature development, having worked on multiple projects and delivered successful features.
• Developed features for various software applications

• Collaborated with cross-functional teams to gather requirements and design solutions

• Implemented features using agile methodologies and best practices

• Conducted testing and debugging to ensure quality and functionality

• Continuously improved features ba
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Q3. Why the job change currently
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Coding test, on C, around 1 hr, on teams

Q1. C basics Embedded C Aptitude
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Q1. Project explanation
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Q2. C syntaxes, questions on arrays pointers
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Q1. Coding related to pointers
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Q2. Recursion program
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Q1. Object oriented Concepts concepts
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Q2. Explain what is Constructors
Ans. 
Constructors are special methods in a class that are used to initialize objects of that class.
• Constructors have the same name as the class they belong to.

• They are called automatically when an object is created.

• Constructors can have parameters to initialize object properties.

• Example: public class Car { public Car(String color) { this.color = color; }}
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Q3. DO you know about the design pattern in C++
Ans. 
Design patterns in C++ are reusable solutions to common problems in software design.
• Design patterns help in creating flexible, maintainable, and scalable code.

• Examples of design patterns in C++ include Singleton, Factory, Observer, and Strategy.

• Each design pattern has its own purpose and can be applied in different scenarios.

• Understanding design patterns can improve code quality and efficiency.
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Q1. Difference between structure and union?
Ans. 
Structure is a collection of variables of different data types while union is a collection of variables of same data type.
• Structure allocates memory for all its variables while union allocates memory for only one variable at a time.

• Structure is used when we want to store different types of data while union is used when we want to store only one type of data.

• Structure is accessed using dot operator while union is access...read more
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Q2. How to avoid dangling pointers?
Ans. 
Dangling pointers can be avoided by setting them to NULL after freeing the memory they point to.
• Always initialize pointers to NULL.

• Set pointers to NULL after freeing the memory they point to.

• Avoid accessing memory through a pointer after it has been freed.

• Use smart pointers or garbage collection to automate memory management.
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Q3. Write a program to print Fibonacci series using recursion
Ans. 
A program to print Fibonacci series using recursion.
• Define a recursive function that takes an integer n as input

• Base case: if n is 0 or 1, return n

• Recursive case: return the sum of the previous two Fibonacci numbers

• Call the recursive function with the desired number of terms and print the result
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Q1. What are your strengths in computer science?
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