Company: HCL Technologies

1. Which of the following about the following two
declaration is
true
i ) int *F()
ii) int (*F)()
Choice :
a) Both are identical
b) The first is a correct declaration and the second
is wrong
c) The first declaraion is a function returning a pointer to an
integer and the second is a pointer to function
returning int
d) Both are different ways of declarin pointer to a
function
Answer : c) The first de…

2. What are the values printed by the following
program?
#define dprintf(expr) printf(#expr “=%dn”,expr)
main()
{
int x=7;
int y=3;
dprintf(x/y);
}
Choice:
a) #2 = 2 b) expr=2 c) x/y=2 d) none
Answer: c)x/y=2

3. Which of the following is true of the following
program
main()
{
char *c;
int *p;
c =(char *)malloc(100);
p=(int *)c;
free(p);
}
ans: The code functions properly releasing all the
memory allocated

4.output of the following.
main()
{
int i;
char *p;
i=0X89;
p=(char *)i;
p++;
printf(“%x %xn”,p,i);
}
*
ans:0X8A

5.
which of the following is not a ANSI C language
keyword?
ans:Function.

6. When an array is passed as parameter to a function,
which of
the following statement is correct
choice:
a) The function can change values in the original
array
b) In C parameters are passed by value. The funciton
cannot
change
the original value in the array
c) It results in compilation error when the function
tries to
access the
elements in the array
d) Results in a run time error when the funtion tries
to access
the elements
in the array
Answer: a) The fu…

7. The type of the controlling expression of a switch
statement
cannot be of
the type
a) int b) char c) short d)float e) none
Answer : d)float

8.What is the value of the expression (3^6) + (a^a)?
a) 3 b) 5 c) 6 d) a+18 e) None
Answer : 5

9. What is the value assigned to the variable X if b
is 7 ?
X = b>8 ? b <<3 : b>4 ? b>>1:b;
a) 7 b) 28 c) 3 d) 14 e) None
ans: 3;

10. Which is the output produced by the following
program
main()
{
int n=2;
printf(“%d %dn”, ++n, n*n);
}
a) 3,6 b) 3,4 c) 2,4 d) cannot determine
Answer : b) 3,4

11. What is th output of the following program?
int x= 0x65;
main()
{
char x;
printf(“%dn”,x);
}
a) compilation error b) ‘A’ c) 65 d)
unidentified

12. What is the output of the following program
main()
{
int a=10;
int b=6;
if(a=3)
b++;
printf(“%d %dn”,a,b++);
}
a) 10,6 b)10,7 c) 3,6 d) 3,7 e) none
Answer : d) 3,7

13. What can be said of the following program?
main()
{
enum Months {JAN =1,FEB,MAR,APR};
Months X = JAN;
if(X==1)
{
printf(“Jan is the first month”);
}
}
a) Does not print anything
b) Prints : Jan is the first month
c) Generates compilation error
d) Results in runtime error
Answer: b) Prints : Jan..

14. What is the output of the following program?
main()
{
char *src = “Hello World”;
char dst[100];
strcpy(src,dst);
printf(“%s”,dst);
}
strcpy(char *dst,char *src)
{
while(*src) *dst++ = *src++;
}
a) “Hello World” b)”Hello” c)”World” d) NULL e)
unidentified
Answer: d) NULL

15. What is the output of the following program?
main()
{
int l=6;
switch(l)
{ default : l+=2;
case 4: l=4;
case 5: l++;
break;
}
printf(“%d”,l);
}
a)8 b)6 c)5 d)4 e)none
Answer : c)5

16. What is the output of the following program?
main()
{
int x=20;
int y=10;
swap(x,y);
printf(“%d %d”,y,x+2);
}
swap(int x,int y)
{
int temp;
temp =x;
x=y;
y=temp;
}
a)10,20 b) 20,12 c) 22,10 d)10,22 e)none
Answer:d)10,22

17. What is the output of the f
ollowing problem ?
#define INC(X) X++
main()
{
int X=4;
printf(“%d”,INC(X++));
}
a)4 b)5 c)6 d)compilation error e) runtime error
Answer : d) compilation error

18. what can be said of the following
struct Node {
char *word;
int count;
struct Node left;
struct Node right;
}
a) Incorrect definition
b) structures cannot refer to other structure
c) Structures can refer to themselves. Hence the
statement is OK
d) Structures can refer to maximum of one other
structure
Answer :c)

19. What is the size of the following union.
Assume that the size of int =2, size of float =4 and
size of char
=1.
Union Tag{
int a;
flaot b;
char c;
};
a)2 b)4 c)1 d) 7

20) What is the output of the following program? (.has been used to indicate a space)
main()
{
char s[]=”Hello,.world”;
printf(%15.10s”,s);
}
a)Hello,.World…
b)….Hello,.Wor
c)Hello,.Wor….
d)None of the above
(1) The combined length of the longer two pieces of rope is 12 metres.
(2) The combined length of the shorter two pieces of rope is 11 metres.
(A) (B) (C) (D) (E)