Specialization Track

C++ and C Interview Questions & Answers

C++ Technical Interview Questions

Medium 0 views

How does RAII prevent resource leaks in C++?

Resource acquisition is initialization binds a resource’s lifetime to an object whose destructor performs cleanup. Stack unwinding destroys fully constructed local objects when exceptions propagate, m...

Verified Model Solution View Full Answer

Medium 0 views

When should you choose unique_ptr, shared_ptr, or a non-owning pointer in C++?

Use std::unique_ptr for exclusive dynamic ownership and transfer ownership explicitly with move semantics. Use std::shared_ptr only when independently managed shared ownership is actually required. A ...

Verified Model Solution View Full Answer

Medium 0 views

Why is returning a pointer to a local variable invalid, and what are safer alternatives?

An ordinary local variable with automatic storage duration ceases to exist when the function returns. A pointer to it then dangles, and accessing the former object through that pointer is invalid even...

Verified Model Solution View Full Answer

Medium 0 views

Why can a C++ base class need a virtual destructor?

When an object is destroyed through a base pointer, a public virtual destructor permits the derived destructor to run correctly. Deleting a derived object through a base pointer without a suitable vir...

Verified Model Solution View Full Answer

Other Categories

Software Engineering & OOP 8 AI & Machine Learning 12 Data Structures & Algorithms 11 IT Staffing & Recruitment 9 JavaScript & Web Technologies 7 Cybersecurity & InfoSec 7 Python Programming 13 Data Science & Analytics 6 Java 18 Full Stack Web Development 13 SQL & Relational Databases 12 Computer Networks & OS 13 Cloud & DevOps Engineering 6 HR Interview 14 Data Science & Machine Learning 6 General 21 .NET 12 C++ and C 18 Networking 11 Windows 11 Unix / Linux 17 Visual Basic 8 Hardware 13 Database 9 Testing 19 Web Development 12 x86 13 Designing 6 Programming 2 Marketing 1 BPO 3 Customer Support 0 Technical Support 1 CCNA 3 Aptitude 1 FAQ 19 Engineering 3 Manufacturing 2 Backend 0

Practice Placement MCQs

Test your aptitude, quantitative reasoning, and core programming skills under timed conditions.

Start Placement Test