EC8393_FDS_WEEKLY_TEST3(18.08.20)

The keyword used to transfer control from a function back to the calling function is

• switch

• goto

• return

• exit

What is the default return type if it is not specified in function definition?

• void

• int

• float

• short int

The default parameter passing mechanism is

• Call by value

• call by reference

• call by value result

• None

In C, what is the meaning of following function prototype with empty parameter list

void fun()

{

/* .... */

}

• Function can only be called without any parameter

• Function can be called with any number of parameters of any types

• Function can be called with any number of integer parameters.

• Function can be called with one integer parameter.

What error would the following function give on compilation ?

f(int a,int b)

{

int a;

a = 20;

return a;

}

• Missing parentheses in return statement

• Function should be define as int f(int a,int b)

• Redeclaration of a

• No error

A function that is prototype as

int calculate(int num);

may

• Recieve an integer variable named num from the main () program

• Receive any integer variable from the main() program

• Either (a) or (b)

• None of these

The declaration

void function1(int)

indicates the function1 is a function which

• Has no arguments

• Returns nothing

• Both (a) and (b)

• None of these

Use of functions

• helps to avoid repeating a set of statements many times

• enhances the logical clarity of the program

• helps to avoid repeated prograniming across programs

• all of the above

void can be used

• as a data-type of a function that returns value to its calling environment

• inside the brackets of a function that does not need any argument

• in an expression

Any C program

• must contain at least one function

• need not contain any function

• needs input data

• none of the above