Dassault Systemes Senior Software Developer Interview Questions and Answers

Q1. Types of data structure and their time complexities
Ans. 
Data structures are used to organize and store data efficiently. Time complexity is the measure of efficiency.
• Arrays - O(1) for access, O(n) for search and insertion

• Linked Lists - O(n) for access, O(1) for insertion and deletion

• Stacks - O(1) for access, insertion and deletion

• Queues - O(1) for access, insertion and deletion

• Trees - O(log n) for access, insertion and deletion

• Hash Tables - O(1) for access, insertion and de
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Q2. Types of Binary Tree
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Binary trees are classified based on the number of children each node can have.
• Full binary tree: every node has either 0 or 2 children

• Complete binary tree: all levels except possibly the last are completely filled, and all nodes are as far left as possible

• Perfect binary tree: all internal nodes have two children and all leaf nodes are at the same level

• Balanced binary tree: the difference in height between the left and ...read more
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Q1. Based on DSA, OOPS
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Q1. Based on Projects in Resume
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Q1. Technical Discussion about earlier projects
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Q1. Salary Discussion
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Scheduling Program, Build Scripts

Q1. System Design, Previous Projects
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Q1. Salary Decision, Car lease options
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It was like 5 MCQ and two coding questions with difficult level of moderate

Q1. They asked questions from DSA,sql and some web technology which I mentioned in my resume
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Q2. What is the life cycle of react components?
Ans. 
React components go through various stages in their life cycle, from initialization to destruction.
• Initialization: Component is created and initialized with default props and state.

• Mounting: Component is rendered on the DOM for the first time.

• Updating: Component re-renders when props or state change.

• Unmounting: Component is removed from the DOM.

• Examples: componentDidMount() for mounting, componentDidUpdate() for updati
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Q1. Asked about my project and some behavioural questions
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Moderate level questions

Q1. OOPS,DBMS,SQL queries,Web Development essentials,GitHub
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Q1. Questions about your interests
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Q1. Questions like what is your dream company,will you re-locate,..etc
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Q1. What is polymorphism?
Ans. 
Polymorphism is the ability of an object to take on many forms. It allows objects of different classes to be treated as the same type.
• Polymorphism is a fundamental concept in object-oriented programming.

• It enables code reusability and flexibility.

• Polymorphism can be achieved through method overriding and method overloading.

• Example: A parent class Animal can have multiple child classes like Dog, Cat, and Bird. They can ...read more
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Q2. What is static polymorphism?
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Static polymorphism refers to the ability of a programming language to select the appropriate function or method at compile-time.
• Static polymorphism is achieved through function overloading or operator overloading.

• It allows different functions with the same name but different parameters to be called based on the arguments provided.

• The selection of the appropriate function is determined at compile-time, based on the sta...read more
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Q3. What is dynamic polymorphism?
Ans. 
Dynamic polymorphism is the ability of an object to take on many forms based on the context it is used.
• It allows objects of different classes to be treated as objects of a common superclass.

• It is achieved through method overriding and virtual functions.

• Example: A superclass 'Animal' with subclasses 'Dog' and 'Cat'. Both can be treated as 'Animal' objects.
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Q1. What project worked on
Ans. 
I worked on a project to develop a web-based inventory management system for a retail company.
• Implemented user authentication and authorization features

• Designed database schema for storing product information

• Developed frontend using React and backend using Node.js

• Integrated payment gateway for online transactions
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Q2. Explain a scenario
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Explaining a scenario in software development
• Scenario: A team is working on developing a new feature for a mobile app

• Discussing the requirements with the product owner and stakeholders

• Breaking down the feature into smaller tasks for the development team

• Assigning tasks to team members based on their expertise

• Regularly reviewing progress and making adjustments as needed
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