Rexel Senior Regional Sales Engineer Interview Questions and Answers

Q1. Basics of domain
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Q2. Technical questions about ur Job
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Q1. Why you want to come to this company why not other company
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I am drawn to this company's innovative approach, strong company culture, and opportunities for growth.
• I am impressed by the company's track record of success and growth.

• I believe in the company's mission and values, which align with my own.

• I see great potential for career advancement and development here.

• I have heard positive feedback from current employees about the company culture and work environment.
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Q1. Explain Oops concepts in c# Solid and design principles Task vs thread Difference between interface and abstract class
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OOPs concepts in C#, SOLID and design principles, Task vs Thread, Interface vs Abstract class
• OOPs concepts in C# include encapsulation, inheritance, polymorphism, and abstraction

• SOLID principles are Single Responsibility, Open/Closed, Liskov Substitution, Interface Segregation, and Dependency Inversion

• Task is a unit of work in C# that represents an asynchronous operation, while Thread is a separate path of execution wi...read more
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Q1. Same as 1 st round with programing questions
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Q1. Explain singleton design pattern, And general questions
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Q1. Swift interview questions
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Q1. Initializer list use cases
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Q2. Polymorphism and use cases
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Q3. Types of polymorphism
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Types of polymorphism include compile-time polymorphism (method overloading) and runtime polymorphism (method overriding).
• Compile-time polymorphism is achieved through method overloading, where multiple methods have the same name but different parameters.

• Runtime polymorphism is achieved through method overriding, where a subclass provides a specific implementation of a method that is already defined in its superclass.
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Q4. Virtual functions
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The aptitude test is beneficial and somewhat easy.

The coding test was both successful and somewhat challenging.

Group discussions are highly beneficial.

Q1. What is the concept of Object-Oriented Programming (OOP) in Python?
Ans. 
Object-Oriented Programming (OOP) in Python is a programming paradigm based on objects and classes to structure code effectively.
• Encapsulation: Bundling data and methods that operate on the data within one unit (class). Example: class Dog with attributes and methods.

• Inheritance: Mechanism to create a new class using properties of an existing class. Example: class Bulldog inherits from class Dog.

• Polymorphism: Ability to...read more
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Q2. What can you tell me about machine learning algorithms?
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Machine learning algorithms enable computers to learn from data and make predictions or decisions without explicit programming.
• Supervised Learning: Algorithms learn from labeled data. Example: Linear Regression for predicting house prices.

• Unsupervised Learning: Algorithms identify patterns in unlabeled data. Example: K-Means Clustering for customer segmentation.

• Reinforcement Learning: Algorithms learn by interacting wi...read more
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Q1. Can you tell me about yourself?
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Q2. What makes you a suitable candidate for this position?
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I possess a blend of relevant skills, experience, and a strong commitment to contributing positively to your team.
• Strong analytical skills: In my previous role, I successfully analyzed market trends to improve product positioning.

• Team collaboration: I led a project team that increased efficiency by 20% through effective communication and delegation.

• Adaptability: I quickly learned new software tools that enhanced our wo...read more
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Q1. What is the concept of virtual inheritance in relation to vtables and vptrs in object-oriented programming?
Ans. 
Virtual inheritance allows a derived class to inherit from a base class without creating duplicate base class subobjects.
• Virtual inheritance is used to resolve the Diamond Problem in C++ where a class inherits from two classes that have a common base class.

• It ensures that only one copy of the base class is inherited by the derived class.

• Virtual inheritance introduces a virtual base class subobject to the derived class,...read more
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Q2. Explained about vtptr and vtable initialisation and structure
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Q1. What is the implementation of a class for string operations?
Ans. 
A class for string operations can include methods for concatenation, substring extraction, length calculation, etc.
• Create a class with methods like concatenateStrings, extractSubstring, calculateLength, etc.

• Use string manipulation functions like substring, concat, length, etc. within the class methods.

• Ensure error handling for edge cases like empty strings or out-of-bounds indices.

• Example: class StringOperations { conc...read more
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