Nagarro interview questions

Preview Questions

1. How can we prevent memory leaks in C++ ?

   To prevent memory leaks in C++, we should always free the memory we allocate. When we use new to create something, we must use delete to release it after use. A better and safer way is to use smart pointers like...

2. Where is object stored ? (in both C++ & Java)

   In C++, an object can be stored in two places: Stack: When you create an object normally (like Student s;), it is stored in the stack. Stack memory is fast and automatically cleared when the function ends. Heap: When...

3. Can we declare function static outside class.

   No, we cannot declare a static function outside a class in C++. If a function is declared as static inside a class, it means that the function belongs to the class and not to any specific object. However, we can have a...

4. Difference between C++ & c# ?

   C++ and C# are both powerful languages, but they’re used for different purposes. Platform: C++ is platform-independent and used for system-level or performance-heavy applications. C# mainly runs on the .NET framework...

5. How can abstraction be achieved? Can it be achieved using access modifiers?

   Abstraction in programming means showing only the necessary details and hiding the complex logic from the user. In C++ or Java, abstraction can be achieved using abstract classes and interfaces — they define what should...

6. How do we resolve interface ambiguity in programming?

   In C++, interface ambiguity can occur when a class inherits from multiple base classes that have functions with the same name. To resolve it, we use the scope resolution operator (::) to specify which class’s function...