C++ Pointers and File Management Quiz

What is a pointer in C++?

• A type of function

• A variable that holds a string

• A class member

• A variable that points to an address of a value

Which operator is used to access the value stored at the address pointed to by a pointer?

• &

• *

• ->

• &&

What does the 'this' pointer refer to in C++?

• The base class

• The current instance of the class

• A static variable

• A global variable

What is a pure virtual function in C++?

• A function with a complete implementation

• A function that cannot be overridden

• A function declared without an implementation

• A function that is private

Which class is the base class for all stream classes in C++?

• istream

• ostream

• ios

• fstream

What is the purpose of the ofstream class in C++?

• To create objects

• To read from files

• To write to files

• To manage input streams

Which of the following is a manipulator in C++?

• put

• read

• get

• setprecision

What does the cin object do in C++?

• Writes data to the console

• Formats output

• Reads data from the console

• Creates a file

What is the output of the following code: cout << setbase(16) << 100;

• Error

• 100

• 0x64

• 64

Which function is used to close a file in C++?

• close()

• finish()

• end()

• stop()