Test Questions

1. What is the purpose of a pure virtual function in C++?

• a) To ensure that the function is never called
• b) To provide a default implementation for derived classes
• c) To make a class abstract and require derived classes to implement it
• d) To enable function overloading

2. In C++, what is the difference between an object and a class?

• a) An object is a blueprint for creating instances of a class.
• b) An object is an instance of a class, and a class is a blueprint.
• c) An object is a function inside a class, and a class is an instance of the object.
• d) An object and a class are the same thing in C++.

3. Which of the following is not a C++ standard library container?

• a) vector
• b) queue
• c) array
• d) stack

4. What is the purpose of the 'new' operator in C++?

• a) To delete memory allocated by the 'malloc' function
• b) To allocate memory for an array of elements
• c) To create a new instance of a class
• d) To open a new file for reading

5. In C++, what is the role of the 'typeid' operator?

• a) It returns the type information of a variable or expression.
• b) It checks if a variable is of primitive type.
• c) It is used to cast variables to a different type.
• d) It is used to determine the size of an array.