Constructors are used to

initialize the objects construct the data members All of the mentioned none of the mentioned

Which of the following is not an advantage of secondary memory

It is cost-effective It has large storage capacity It has highest speed It is easily portable

Why reference is not same as a pointer?

All of the mentioned A reference can never be null. Reference doesn't need an explicit dereferencing mechanism. A reference once established cannot be changed.

The default visibility mode while inheriting is ?

private protected public Depends

Which among following is not a valid visibility mode in C++ program ?

Limited Protected Public Private