Dassault Systemes R&D Engineer Interview Questions and Answers

There was 60mins and we have to solve 60 questions

Sometimes they take coding along with aptitude

Q1. Most of the interview is related to the current project that i was working in the current organization.
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Q2. How to allocate dynamic memory in c n cpp
Ans. 
Dynamic memory allocation in C and C++ can be done using malloc, calloc, realloc and new operators.
• malloc() function is used to allocate a block of memory of specified size.

• calloc() function is used to allocate a block of memory and initializes it to zero.

• realloc() function is used to resize the previously allocated memory block.

• new operator is used in C++ to allocate memory for an object.

• Memory allocated using these f...read more
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Q3. Difference between malloc and calloc
Ans. 
malloc and calloc are memory allocation functions in C. malloc allocates memory but does not initialize it, while calloc initializes memory to zero.
• malloc allocates memory block of given size

• calloc allocates memory block of given size and initializes it to zero

• malloc returns a pointer to the allocated memory

• calloc returns a pointer to the allocated memory or NULL if allocation fails

• malloc does not clear the allocated m...read more
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Q4. What are pointers and what is dangling pointer
Ans. 
Pointers are variables that store memory addresses. A dangling pointer is a pointer that points to a memory location that has been deallocated.
• Pointers are used to access memory directly

• They can be used to pass values by reference

• Dangling pointers can cause program crashes or unexpected behavior
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Q5. What is inheritance and its type
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Inheritance is a mechanism in object-oriented programming where a new class is created from an existing class.
• It allows the new class to inherit the properties and methods of the existing class.

• There are different types of inheritance such as single, multiple, multilevel, and hierarchical.

• Single inheritance involves a child class inheriting from a single parent class.

• Multiple inheritance involves a child class inheriti...read more
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Q1. This is a mix of hr and technical where they ask some puzzles and ask some basic hr question
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Basic HTML, CSS and JS questions

Q1. Aptitude & Logical questions and JS questions
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Q1. Normal discussions
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General Aptitude test along with Coding Test.

Q1. Basic Javascript Questions and outputs of code snippet.
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Q1. Scenario based Question along with some puzzle
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Q1. Behavioural Questions
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Q1. Salary discussion
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This was my 1st round in which aptitude question.

Q1. Asked about closers in Javascript. One Aptitude question And one output realted question in javascript
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Q1. Puzzles were asked in this round related to a sandclock.
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Q1. C++ specific interview
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Q1. Explain coin change problem ?
Ans. 
Coin change problem involves finding the minimum number of coins needed to make a certain amount of change.
• Involves finding the minimum number of coins needed to make a certain amount of change

• Dynamic programming is commonly used to solve this problem

• Example: If the coins available are [1, 2, 5] and the amount to make is 11, the minimum number of coins needed is 3 (5 + 5 + 1)
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Contains Maths/Apti and basic coding question

Q1. Asked about OOPs Concept, Geometry and Puzzle
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