Q : What is pointer? How is it initialized? What is indirection operator? What is the scale factor?
Solution:
Pointer
A pointer is a special type of variable which hold physical address of a non pointer variable.Symbol * is used to make a pointer variable. Programmer can change a variable value from another location with the help of pointer. Call reference is an example of pointer , in which a variable physical address pass to a function and any change made inside of function direct affect actual value of passed variable due to pointer.