What is the correct extension of C++ source file?

• .c
• .cpp
• .cp
• .cxx

Which is the correct output stream in C++?

• cin
• cout
• printf
• echo

Which header file is required to use cout?

• stdio.h
• iostream
• conio.h
• stream.h

What is the size of int in C++ (typically)?

• 2 bytes
• 4 bytes
• 8 bytes
• Depends on system

Which of the following is a correct variable name?

• 1num
• num_1
• %value
• num-value

What is the purpose of inheritance in C++?

• Memory management
• Code reuse
• Faster execution
• Data hiding

Which type of inheritance is supported in C++?

• Single
• Multiple
• Multilevel
• All of the above

Which keyword is used to define a base class?

• base
• super
• class
• parent

What does polymorphism in C++ refer to?

• Memory allocation
• Data hiding
• Function behavior overloading
• Inheritance

Which type of function allows polymorphism?

• Virtual
• Static
• Inline
• Constant

What is the primary purpose of move semantics in C++11 and later?

• Reduce code size
• Improve syntax
• Optimize resource transfers
• Create inline functions

Which smart pointer shares ownership of an object in C++?

• unique_ptr
• auto_ptr
• raw pointer
• shared_ptr

What is the output type of a lambda function with no specified return?

• int
• void
• auto
• Depends on the lambda body

Which header file provides std::thread in C++11?

• <threading>
• <concurrency>
• <thread>
• <threads>

Which C++ principle ensures proper resource release on exception?

• OOP
• STL
• RAII
• Inheritance