What is the reasonable length of an identifier?

Which operator is used to compare values to find the minimum or maximum?

How many child nodes can a Binary Tree structure have?

Identify the output of the following C program code.

Which function returns the current position of the get or put pointer in bytes?

 In a Queue, if a user tries to remove an element from empty Queue it is called  

If access to the varying arguments is desired, then the called function shall declare a variable of type va_list.

Which arithmetic operations can be applied to a pointer variable?

Which of the following pointer initializations does not set the pointer to null (assuming variable declaration of int a = 0;)?

What are Bi-directional iterators?