What is the purpose of the C++ auto keyword?

Allows type inference, deducing the type of a variable at compile time.

What is the purpose of the inline keyword in C++?

suggests to replace the function call with the actual code of the function

What is the purpose of the virtual keyword in C++?

It is used to define a virtual function in a base class

What is the purpose of the friend keyword in C++?

It specifies a function that can access private members of a class

What is the role of the break statement in a switch statement?

It exits the loop or switch statement

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Answers

1
What is the purpose of the C++ auto keyword?
Allows type inference, deducing the type of a variable at compile time.
It automatically increments the value of a variable.
It is a data type for automatic variables
It automatically assigns a value to a variable.
2
What is the scope resolution operator in C++?
.
::
:
->
3
What is the purpose of the inline keyword in C++?
indicates that a function should be implemented in a separate source file.
suggests to replace the function call with the actual code of the function
used to declare a function as a member of a class.
specifies that a function can be called from other source files.
4
Which C++ keyword is used to allocate memory dynamically?
malloc
new
allocate
dynamic
5
What is the purpose of the virtual keyword in C++?
It declares a variable as virtual
It allocates memory virtually
It is used to define a virtual function in a base class
It specifies that a class cannot be inherited
6
Which of the following is a reference variable in C++?
int* ptr;
char# ch;
float& ref;
double@ num;
7
Which operator is used for memory deallocation in C++?
delete
remove
dealloc
free
8
What is the purpose of the friend keyword in C++?
It specifies a function that can access private members of a class
It defines a function that can be used by any other function.
It declares a function as a friend to the main function
It allows a class to inherit from another class.
9
What is the role of the break statement in a switch statement?
It exits the loop or switch statement
It skips the next iteration of the loop
It restarts the loop
It ends the program
10
In C++, what is the primary purpose of the iostream library?
Mathematical Operations
File Handling
String Manipulation
Input and Output

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