C++ Interview Questions and Answers
Last Updated :
18 Sep, 2025
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C++ is one of the most common languages asked about in technical interviews. It is widely used because of its speed, flexibility, and support for both low-level programming and advanced features like OOP and templates.
Topic-wise Interview Questions:
- Basics & Program Structure
- Core Concepts & Memory Handling
- Object-Oriented Programming (OOP)
- Exception Handling & Templates
- STL (Standard Template Library)
- Advanced Topics & Design Patterns
Relevant Resources
To do well in interviews, you need to understand core syntax, OOP concepts, STL, memory handling, and advanced features.
1. Core Concepts : Arrays, String, Pointers, References, Dynamic Memory (new/delete), Memory Leaks, Shallow vs Deep Copy, Smart Pointers, Object Oriented Programming
2. Advanced Topics : Exception Handling, Templates, STL, Multithreading, Lambda Expressions, Move Semantics, Memory Models and Design Patterns (Singleton, Factory, Observer)
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