Questions
41
Run time polymorphism is achieved only when a ……………….. is accessed through a pointer to the base class.
Answer: Option [B]
42
If a ……………………… is defined in the base class, it need not be necessarily redefined in the derived class.
Answer: Option [B]
43
…………………………. is a function declared in a base class that has no definition relative to the base class.
Answer: Option [B]
44
State whether the following statements about virtual functions are True or False.
i) A virtual function, equated to zero is called pure virtual function.
ii) A class containing pure virtual function is called an abstract class
Answer: Option [A]
45
The main objective of an abstract base class is to provide some traits to the derived class and to create a ………………………. required for achieving run time polymorphism.
Answer: Option [D]
46
. State whether the following statements about virtual functions is/are True.
i) The virtual function must be member of some class
ii) virtual functions cannot be static members
iii) A virtual function can not be a friend of another class.
Answer: Option [A]
47
The important application of ………………… is to return the object it points to.
Answer: Option [C]
49
We can manipulate a pointer with the indirection operator (*), which is also known as ……………………
Answer: Option [B]
50
Using the ………………………., we can change the contents of the memory location.
Answer: Option [B]
51
If we attempt to dereference an uninitialized pointer, it will ………………….. by referring to any other location in memory.
Answer: Option [C]
