Declarations and Initializations

1.	Which of the following statements should be used to obtain a remainder after dividing 3.14 by 2.1 ?
	A. rem = 3.14 % 2.1; B. rem = modf(3.14, 2.1); C. rem = fmod(3.14, 2.1); D. Remainder cannot be obtain in floating point division.
	2. What are the types of linkages?
	A. Internal and External B. External, Internal and None C. External and None D. Internal
	3. Which of the following special symbol allowed in a variable name?
	A. * (asterisk) B. | (pipeline) C. - (hyphen) D. _ (underscore)
4.	Is there any difference between following declarations? 1 : extern int fun(); 2 : int fun();
	A. Both are identical B. No difference, except extern int fun(); is probably in another file C. int fun(); is overrided with extern int fun(); D. None of these
	5. How would you round off a value from 1.66 to 2.0?
	A. ceil(1.66) B. floor(1.66) C. roundup(1.66) D. roundto(1.66)
	6. By default a real number is treated as a
	A. float B. double C. long double D. far double

7.	Which of the following is not user defined data type? 1 : struct book {     char name[10];     float price;     int pages; }; 2 : long int l = 2.35; 3 : enum day {Sun, Mon, Tue, Wed};
	A. 1 B. 2 C. 3 D. Both 1 and
	8. Is the following statement a declaration or definition? extern int i;
	A. Declaration B. Definition C. Function D. Error
	9. Identify which of the following are declarations

1 :	extern int x;
2 :	float square ( float x ) { ... }
3 :	double pow(double, double);

A.	1	B.	2
C.	1 and 3	D.	3

 10. In the following program where is the variable a getting defined and where it is getting declared?

#include<stdio.h>

int main()

{

    extern int a;

    printf("%d\n", a);

    return 0;

}

int a=20;

A.	extern int a is declaration, int a = 20 is the definition
B.	int a = 20 is declaration, extern int a is the definition
C.	int a = 20 is definition, a is not defined
D.	a is declared, a is not defined

11. When we mention the prototype of a function?

A.	Defining	B.	Declaring
C.	Prototyping	D.	Calling

With Explanation Answers