How many types of functions are there in C++?

(a)

2

(b)

3

(c)

4

(d)

many

Ready-to-use sub programs are called
(i) pre-defined functions
(ii) built-in functions
(iii) user-defined functions

(a)

Only(i)

(b)

Only (ii)

(c)

Only (iii)

(d)

both (i) and (ii)

(e)

both (ii) and (iii)

Which of the following function does not return I?

(a)

isupper ()

(b)

toupper()

(c)

islower()

(d)

isdigit()

toupper() belongs to _______.

(a)

type.h

(b)

string.h

(c)

iostream.h

(d)

manip.h

The body of the function always enclosed with _______.

(a)

[]

(b)

{}

(c)

()

(d)

<>