63 Moons Technologies C Developer Interview Questions and Answers

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1. Aptitude questions (profit and loss, coding decoding, missing number , time and distance etc)
2. C++ mcq questions(constructor and destructor, virtual functions, class and objects, pointer, oops concept)

Q1. What is class and objects in c++?
Ans. 
Class is a blueprint for creating objects. Objects are instances of a class with their own set of properties and methods.
• Classes define the properties and methods that objects will have

• Objects are created from a class using the 'new' keyword

• Objects can interact with each other through their methods and properties

• Example: class Car { int speed; void accelerate(); }; Car myCar; myCar.accelerate();

• Example: class Person { ...read more
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Q2. About Constructor and destructor , Types of constructor, How constructor called?
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Q3. Memory management of variable and objects
Ans. 
Memory management involves allocating and deallocating memory for variables and objects.
• Variables can be allocated on the stack or heap depending on their scope and lifetime.

• Objects can be created using new operator and must be deleted using delete operator to avoid memory leaks.

• Smart pointers like unique_ptr and shared_ptr can be used to manage object memory automatically.

• Memory leaks can be avoided by properly managi...read more
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Q4. Difference between stack memory and heap memory
Ans. 
Stack memory is allocated automatically, while heap memory is allocated manually.
• Stack memory is limited and has a fixed size, while heap memory is larger and can grow dynamically.

• Stack memory is faster to access than heap memory.

• Stack memory is used for local variables and function calls, while heap memory is used for dynamic memory allocation.

• Examples of stack memory include function call stack and local variables, w...read more
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Q5. About function overloading and overriding in c++?
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Technical based question and c++ programing question

Q1. Opps concept and multi threading questions
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Q1. About your self
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