Interview Questions Answers in C++ General, Web Design

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Question { 1016 }

What is the difference between a shallow copy and a deep copy?

Answer

• Shallow Copy: Copies memory addresses. Changes in one object affect the other.
• Deep Copy: Creates a new copy of the actual data, independent of the original

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Question { 957 }

Explain virtual functions in C++.

Answer

• A virtual function is a member function that can be overridden in derived classes. Declared with the virtual keyword in the base class, enabling runtime polymorphism.

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Question { 973 }

Explain the concept of inheritance in C++.

Answer

Inheritance allows one class (derived class) to acquire the properties and methods of another class (base class). Types: single, multiple, multilevel, hierarchical, hybrid.

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Question { 1002 }

What are access specifiers in C++?

Answer

• Private: Members are accessible only within the class.
• Protected: Accessible within the class and derived classes.
• Public: Accessible from outside the class.

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Question { 1008 }

What is the use of the this pointer?

Answer

• It points to the calling object and is used to resolve scope issues, especially with member functions.

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Question { 1076 }

Explain RAII (Resource Acquisition Is Initialization).

Answer

• A programming idiom where resource allocation is tied to object lifetime. Destructors release resources.

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Question { 1397 }

What is the difference between inline functions and macros?

Answer

• Inline Functions: Type-checked, replace function calls with code during compilation.
• Macros: Preprocessor directive, no type-checking.

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Question { 1254 }

What is the difference between const and constexpr?

Answer

• const: Value remains constant; evaluated at runtime.
• constexpr: Evaluated at compile time for optimization.

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Question { 1572 }

What is the difference between UI and UX design?

Answer

UI (User Interface) focuses on the look and feel of a product, such as layout, colors, and typography. UX (User Experience) is about the overall experience a user has while interacting with the product, including usability, functionality, and accessibility.

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Question { 1572 }

What is the difference between UI and UX design?

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Question { 1572 }

What is the difference between UI and UX design?

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Question { 1572 }

What is the difference between UI and UX design?

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Question { 1572 }

What is the difference between UI and UX design?

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Question { 1572 }

What is the difference between UI and UX design?

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Question { 1242 }

Why is UX important in product design?

Answer

Good UX improves user satisfaction, reduces friction, enhances engagement, and ensures users achieve their goals effectively. It can also reduce customer support costs and boost product adoption.

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