How many times is a do while loop guaranteed to loop?

1 0 Infinitely Variable

How will you free the allocated memory ?

free(var-name); delete(var-name); remove(var-name); dalloc(var-name);

Classes in C++ are________ .

User defined data types derived data types built-in data types All of the mentioned

Which of the following is C++ style type-casting?

per = total/float(m) per = (float)total/m per = total/(float)m none of the mentioned

Which one of the following is not a valid reserved keyword in C++

Implicit Public Explicit Private