Mercedes-Benz Research and Development India Software Consultant Interview Questions and Answers

Online test -math & quants,verbal,puzzle,computer programming,logical

Q1. They select everyone from this & nothing serious
Add your answer

Q1. Any program which you know.
Ans. 
One program I know is a simple calculator program written in Python.
• The program takes user input for two numbers and an operator (+, -, *, /).

• It then performs the operation and displays the result.

• Example: input 5, +, 3 -> output 8
Answered by AI
Add your answer
Q2. About the projects in the resume
Add your answer
Q3. About the internship
Add your answer

Q1. Tell about yourself
Add your answer
Q2. Can you relocate yourself(your answer should be yes)
Add your answer

Q1. Android interview asked about coroutines, flow, why we use MVVM instead of MVP, viewmodel pros and cons, security and how to hide keys in package
Add your answer

2nd round was about again Android but more focused on security features of android

3rd round was live coding . I was asked to make an app from scratch in 1 hour without even using google.

Q1. What are closures
Ans. 
Closures are functions that have access to variables from their containing scope even after the scope has closed.
• Closures allow functions to access variables from their outer function even after the outer function has finished executing.

• They are commonly used in event handlers, callbacks, and asynchronous programming.

• Closures help in maintaining state in functional programming.
Answered by AI
Add your answer
Q2. What is virtual DOM
Ans. 
Virtual DOM is a lightweight copy of the actual DOM used for efficient updates in web development.
• Virtual DOM is a concept used in frameworks like React to improve performance by minimizing actual DOM manipulations.

• When changes are made to the virtual DOM, a comparison is done with the actual DOM to determine the minimal updates needed.

• This approach reduces the number of costly DOM operations, resulting in faster rende
Answered by AI
Add your answer
Q3. What are the data types in JS
Ans. 
Data types in JavaScript include number, string, boolean, object, function, undefined, and null.
• Number - represents numeric data, e.g. 10, 3.14

• String - represents textual data, e.g. 'hello', '123'

• Boolean - represents true or false values, e.g. true, false

• Object - represents complex data structures, e.g. { key: 'value' }

• Function - represents executable code, e.g. function() { }

• Undefined - represents a variable that has ...read more
Answered by AI
Add your answer

Q1. Write react code for counter
Ans. 
React code for a simple counter
• Create a functional component for the counter

• Use useState hook to manage the count state

• Render the count value and buttons to increment and decrement the count
Answered by AI
Add your answer

Q1. Salary discussion
Add your answer

Q1. Mostly asked c questions
Add your answer
Q2. Project related questions
Add your answer

Q1. Project related questions
Add your answer

Q1. Salary discussion
Add your answer

Q1. Technical discussion over how the microservices communicate internally.
Add your answer
Q2. Immutable class implementation
Add your answer
Q3. Singleton class implementation
Add your answer

Basic MCQs on General aptitude, logical reasoning and programming questions

Q1. What is a constructor in C++?
Ans. 
A constructor in C++ is a special member function that is automatically called when an object is created.
• Constructors have the same name as the class and do not have a return type.

• They can be used to initialize the object's data members.

• Default constructors are automatically generated if no constructor is defined.

• Parameterized constructors can be defined to accept arguments during object creation.
Answered by AI
Add your answer
Q2. What is copy assignment operator?
Ans. 
Copy assignment operator is a special member function in C++ that allows one object to be assigned the values of another object of the same class.
• Copy assignment operator is denoted by the = operator.

• It is used to copy the values of one object into another object of the same class.

• It is automatically generated by the compiler if not explicitly defined.

• Example: MyClass obj1; MyClass obj2; obj2 = obj1; // Copy assignment
Answered by AI
Add your answer
Q3. What is virtualization in C++?
Ans. 
Virtualization in C++ is the process of creating a virtual version of a class or function to allow for polymorphism and dynamic binding.
• Virtualization in C++ is achieved through the use of virtual functions and inheritance.

• Virtual functions are declared in a base class and overridden in derived classes to provide different implementations.

• Virtualization allows for polymorphism, where a pointer to a base class can point...read more
Answered by AI
Add your answer
Q4. Implement String class
Ans. 
Implement a custom String class in a programming language.
• Define a class with necessary properties and methods to manipulate strings.

• Include methods for concatenation, substring, length, etc.

• Handle memory allocation and deallocation properly.

• Example: class MyString { // implementation }
Answered by AI
Add your answer
Q5. What is smart pointers?
Ans. 
Smart pointers are objects that act like pointers but provide automatic memory management.
• Smart pointers help prevent memory leaks by automatically deallocating memory when no longer needed.

• Examples include unique_ptr, shared_ptr, and weak_ptr in C++.

• They provide better memory safety compared to raw pointers.
Answered by AI
Add your answer

30 questions combination of Logical, numeric, verbal and 2 coding questions.

Q1. Self Introduction
Add your answer
Q2. Questions on core Java concepts
Add your answer

Q1. Tell me about yourself
Ans. 
I am a passionate software engineer with experience in developing web applications and a strong background in computer science.
• Experienced in developing web applications using technologies such as HTML, CSS, JavaScript, and React

• Strong background in computer science with knowledge of data structures and algorithms

• Proficient in programming languages such as Java, Python, and C++

• Familiar with Agile development methodolog
Answered by AI
Add your answer
Q2. Your strength and weakness
Ans. 
Strength: Problem-solving skills. Weakness: Overthinking.
• Strength: I have strong problem-solving skills which help me in finding efficient solutions to complex issues.

• Weakness: Sometimes I tend to overthink situations, which can lead to unnecessary stress and delays in decision-making.
Answered by AI
Add your answer

Q1. What is Java and static method and why use java
Ans. 
Java is a programming language used for developing applications. Static methods in Java are methods that belong to the class rather than an instance of the class.
• Java is a popular programming language used for developing various types of applications.

• Static methods in Java are methods that can be called without creating an instance of the class.

• Static methods are commonly used for utility functions or methods that do n
Answered by AI
Add your answer
Q2. Write a program to print prime number
Ans. 
Program to print prime numbers
• Iterate through numbers and check if each number is prime

• Use a nested loop to check divisibility by numbers less than the current number

• Print the number if it is prime
Answered by AI
Add your answer