C tech questions

C Programming
1. main( )
{
int x = 10, y = 20;/.
x =!x;
y =!x&&!y;
printf(“x =%d y =%d”, x, y);
}
a) x = 10 b) x = 0 c) x = 20 d) None
y = 20 y=0 y = 10

2. main( )
{
int x = 5;
x++;
printf(“x =%dn”, x);
++x;
printf(“x = %dn”, x);
}
a) x = 5 b) x = 6 c) x = 7 d) None
x=7 x=7 x=5
3. main( )
{
int x = 10, y =x, z =x;
y = x;
z = -x;
t = - x;
printf(“y =%d z=%d t=%d”, y, z, t);
}
a) y = -10 b) y = 0 c) y = 0 d) None
z=0 z = -10 z = -10
t = -10 t = -10 t = -10

4. main( )
{
int i;
for(i = - 1; i < = 10 ; i + +)
{
if ( i < 5 )
continue ;
else
break;
printf(“Gets printed only once!!”);
}}
a) No output b) Gets printed only once c)Error d) None

5. main( )
{
int i =135, a =135, k;
k =function(!++i, !a++);
printf(“i =%d a=%d k=%d”, i, a, k);
}
function(j, b)
int j, b;
{
int c;
c = j + b;
return( c );
}

a) i = 136 b) i = 136 c) i = 135 d)None
a = 135 a = 136 a = 136
k=0 k=0 k=0

6. main( )
{
int k = 35, z;
z = func(k);
printf(“z =%d”, z);
}
func(m)
int m;
{
+ +m;
return(m = func1 (++m));
}
func1(m)
int m;
{
m ++;
return(m);
}

a) z = 38 b) z = 36 c) z = 37 d)
None

7. main( )
{
if(printf(“C for yourself how it worksn”))
main( );
}

a)error b) C for yourself it works c) C for yourself how it works
d) None
C for yourself how it works
…….. ………. …….. …….
……… ……… ………. …
8. main( )
{
int i = 1;
if(!i )
printf(“Recursive calls are real pain!”);
else
{
i = 0;
printf(“Recursive calls are challengingn”);
main( );
}
} a)Recursive calls are challenging b) Recursive calls are challenging
c) Error d) None
Recursive calls are challenging
Recursive calls are challenging .
……… ……….. …………..
……… ………. ……………
9. int i = 0;
main( )
{
printf(“in main i =%dn”, i);
i ++;
val( );
printf(“in main i =%dn”, i);
}
val( )
{
int i = 100;
printf(“in val i = %dn”, i);
i ++;
}

a) 101 1 b) Error message c)1 100 d) None

10. #define NO
#define YES
main( )
{
int i = 5, j;

if( i > 5)
j = YES;
else
j = NO;
printf(“%d”, j);
}
a) Yes Yes Yes Yes Yes Yes b) Error Message c) None d ) No No No

11. #define AND &&
#define OR ||
#define LE <=
#define GE >=
main( )
{
char ch = ‘D’;
if((ch GE 65 AND ch LE 90) OR (ch GE 97 AND ch LE 122))
printf(“Alphabet”);
else
printf(“Not an alphabet”);
}

a) No Alphabet b) Alphabet c) error d)None

12. main( )
{
int n[25];
n[0] = 100;
n[24] = 200;
printf(“%d %d”, *n, *(n + 24) + *(n + 0));
}

a) 200 100 b) 100 300 c) 100 200 d) None

13. main( )
{
int arr[ ] = { 0, 1, 2, 3, 4};
int i, *ptr;
for(ptr = arr + 4; ptr = arr; ptr--)
printf(“%d”, *ptr);
}
a) 0 1 2 3 4 b) 4 3 2 1 0 c) 1 2 3 4 0 d)None

14. main( )
{
static char s[ ] = “Rendezvours!”;
printf(“%d”, *(s + strlen(s)));

}

a) 0 b) 1 c) e d) None

15. main( )
{
static char str[ ] = { 48, 48, 48, 48, 48, 48, 48, 48, 48, 48};
char *s;
int i;
s = str;
for(i = 0; i <=9; i++)
{
if(*s)
printf(“%c”, *s);
s++;
}
}

a)0 0 0 0 0 0 0 0 0 0 b) 1 1 1 1 1 1 1 1 1 1 c) 48 48 48 48 48 48 48 48 48 48 d) None

16. main( )
{
struct employee
{
char name[25];
int age;
float bs;
};
struct employee e;
e.name = “Hacker”;
e.age = 25;
printf(“%s%d”, e.name, e.age);
}

a) Hacker, 25 b) Error message c) 25 Hacker d) None

17. main( )
{
struct s1
{
char*str;
int i;
struct s1*ptr;
};
static struct s1 a[ ] ={

{“Nagpur”, 1, a + 1},
{“Raipur”, 2, a + 2},
{“Kanpur”, 3, a}
};
struct s1*p = a;
int j;
for (j = 0; j <=2; j++)
{
printf(“%d”, --a[j].i);
printf(“%sn”, ++a[j].str);
}
}

a) 1 aipur b) 0 agpur c) 0 aipur d) None
0 agpur 1 aipur 1 agpur
2 anpur 2 anpur 2 anpur

18. #define NULL 0
main( )
{
struct node
{
struct node *previous;
int data;
struct node *next;
};

struct node *p, *q;

p = malloc(sizeof(struct node));
q = malloc(sizeof (struct node));

p->data = 75;
q->data = 90;

p->previous = NULL;
p->next = q;
q->previous = p;
q->next = NULL;

while(p!=NULL)
{
printf(“%dn”, p->data);
p =p->next;
}
}

a) 90 b) 75 c) 90 d) None
75 90 90

19. main( )
{
struct a
{
int i;
int j;
};
struct b
{
char x;
char y[3];
};
union c
{
struct a aa;
struct b bb;
};
union c u;

u.aa.i = 512;
u.aa.j = 512;

printf(“%d%d”, u.bb.x, u.bb.y[0]);
printf(“%d%d”, u.bb.y[1], u.bb.y[2]);

}

a)2020 b) 0022 c) 0202 d) None

20. main( )

{
int a = 3, b = 2, c =1, d;
d = a| b & c;
printf(“d = %dn”, d);
d = a| b & ~ c;
printf(“d =%dn”, d);
}

a) d=2 b) d = 3 c) d = 1 d) None
d=2 d=3 d=1

21. main( )
{
static char a[]=”Bombay”;
char *b=”Bombay”;
printf(“%d %d”,sizeof(a),sizeof(b));
}
a. 1 6 b. 1 1 c. 6 6 d. None

22. main( )
{
int i=3;
i=i++;
printf(“%d”,i));
}
a. 3 b. 4 c. undefined d. Error

23. What error would the following function give on compilation.
f (int a,int b)
{
int a;
a=20;
return a;
}
a. Missing parantheses in return statement.
b. The function should be defined as
int f(int a,int b)
c. Redeclaration of a.
d. None of the above.

24. main( )
{
int b;
b=f(20);
printf(”%d”,b);
}
int f(int a)
{
a>20?return (10):return (20);
}

a. 20 b. 10 c. No output d. Error

25. #define sqr(x) (x*x)
main( )

{
int a,b=3;
a=sqr(b+2);
printf(“%d”,a);
}
a. 25 b. 11 c. Error d. Garbage value

26 #define str(x) #x
#define Xstr(x) str(x)
#define oper multiply
main( )
{
char *opername=Xstr(oper);
printf(“%s”,opername);
}
a. oper b. multiply c. Error d. None

27. main( )
{
printf(“%c”,7[“sundaram”]);
}
a. S b. m c. 0 d. Error

28. main( )
{
int a[ ]={10,20,30,40,50};
char *p;
p=(char *)a;
printf(“%d”,*((int *)p+4));
}
a. 50 b. 10 c. Error d. None

29. main( )
{
printf(“%c”,”abcdefgh”[4]);
}
a. a b. e c. Error d. None

30. main( )
{
printf(“%d %d %d”,sizeof(‘3’),sizeof(“3”),sizeof(3));
}
a. 1 1 1 b. 2 2 2 c. 1 2 2d. 1 1 1
Note: Assume size of int is 2 bytes.
31. main( )
{
struct emp{

char n[20];
int age;}
struct emp e1={“david”,23};
struct emp e2=e1;
if(e1= = e2) printf(“structures are equal”);
}
a. structures are equal
b. No output
c. Error
d. None

32. main( )
{
char a[ ];
a[0] = ‘A’;
printf(“%c”, a[0]);
}
a) Compilation Error
b) No output
c) A
d) None

33. main( )
{
char **p =”Hello”;
printf(“%s”, **p);
}
a) Hello b) **p c) Error d) None

34. main( )
{
int count, end=20;
for (count=1; count<=end; count++)
{
if(count %2) continue;
else
else
else
else
else
else
printf(“%d”, count); }

printf(“%d”, count);
}
The output is
a)No display b) Error c) 20 21 d) 21

35. main( )
{
int a=5;
do
{
printf(“%dn”, a);
a = -1;
} while (a>0);
}
a) 0 b) -1 c) Error d) 5

36. main( )
{
int x = 5;
printf(“%d %d”, x++, ++x);
return 0;
}
a) Error b) 6, 6 c) 5, 7 d) 7, 6

37. main( )
{
int z = 4;
printf( “%d”, printf(“ %d %d “, z, z));
}
a) 4 4 3 b) 4 4 5 c) 4 4 4 d) Error

38. int i = 0;
main( )
{
printf(“i = %d”, i);
i++;
val( );
printf(“After i=%d”, i);
val( );
}
val( )
{
i =100;
printf(“val’s i=%dn”, i);
i++;

}

a) i =0 b) i=0 c) Error d) None of the above
val’s i=100 val’s i =100
i =1 i=101
val’s i =100 val’s i =100

39. main( )
{
printf( “%d %c n”);
printf( “%d %c n”);
return 0;
}
a) Error b) d c d c c) Compilation error d) Some garbage value
will be the output

40. main( )
{
int i;
scanf( “%d”, &i);
switch( i ){
case 1 :
printf( “Do”);
case 2 :
printf( “ Re “);
case default :
printf( “ SACHIN “);
}}
The output will be
a) DO Re SACHIN b) SACHIN c) Do Re d) Error

41. # define COND(a > = 65 & & a < = 90)
main( )
{
char a = ‘R’;
if (COND)
printf(“ UPPER CASE”);
else
printf(“ LOWER CASE”);
}

a) LOWER CASE b) UPPER CASE c) ERROR-COMPILE d) RUN-TIME ERROR

42. main( )
{
int a[ ] = { 10, 20, 30, 40, 50};
int j;

for (j = 0; j < 5; j++)
{
printf(“ n %d”, * a);
a ++;
}
}
a) 0..5 b) 0..4 c) Error d) None of the above

43. main( )
{
int a[ ] = { 10, 20, 30, 40, 50}
char *p;
p = (char *) a;
printf( “ %d”, * ((int*) p+4)); }

a) 50 b) 10 c) Error d) None

44. main( )
{
int a[5] = {2, 4, 6, 8, 10);
int i, b =5;
for(i=0; i<5; i++)
{
f(a[i], &b);
printf(“n %d %d”, a[i], b);
}
}
f(int x, int *y)
{
x = *(y) +=2;
}

a) 2 7 b) 4 9 c) 7 2 d) Error
4 9 6 11 9 4
6 11 8 13 11 6
8 13 10 15 13 8
10 15 12 17 15 10

45. main( )
{
int a,b;
b=7; printf(“%d”, a = =b);
printf(“%d”, a=b);
}
(a) 6 7 (b) 7 6 ( c ) 1 7 ( d ) 0 7

46. main ( )
{
int n=20, i = 0;
while(n- - >0);
i = i +n;
}
The end value of i is
(a)210 (b) 20 ( c) -1 (d) 200

47. main( )
{
int i = 0; char ch = ‘A’
do {
printf(“%c”, ch);
} while (i++ <5| | ++ch < =’F’);
}
The output of above program is
(a) ABCDEF (b) AAAAAA BCDEF ( c) A will be displayed infinitely (d)None
of the above

48. Assume that a,b,c are integer variables. Values of a,b and c are 2,3 and 1
respectively.
Which of the following statement is correct regarding the assignment d=a < b < c - 1;
(a) Above statement is syntactically not correct
(b) Value zero will be stored in variable d
(c) Value one will be stored in variable d
(d) Value -1 will be stored in variable d

49. int count, sum;
main( )
{
for(count = 4; sum + = - - count);
printf(“%d”, sum);
}

(a) Programs goes into an infinite loop
(b) 356653 will be displayed
(c) 354453 will be displayed
(d) None of the above

50. main( )
{
static int c =5;
printf(“%d”, c--);
if (c )
main( );

}

5 5 5 5 5 (b) 5 4 3 2 1 (c ) 5 4 3 2 1 0 (d) None of the above

1) what will be the result of executing following program

main( )
{
char *x="New";
char *y="Dictionary";
char *t;
void swap (char * , char *);
swap (x,y);
printf("(%s, %s)",x,y);

char *t;
t=x;
x=y;
y=t;
printf("-(%s, %s)",x,y);
}
void swap (char *x,char *y)
{
char *t;
y=x;
x=y;
y=t;
}

a).(New,Dictionary)-(New,Dictionary)
b).(Dictionary,New)-(New,Dictionary)
c).(New,Dictionary)-(Dictionary,New)
d).(Dictionary,New)-(Dictionary,New)

2) What will be result of the following program

main()
{
void f(int,int);
int i=10;
f(i,i++);
}
void f(int i,int j)
{

if(i>50)
return;
i+=j;
f(i,j);
printf("%d,",i);
}

a).85,53,32,21
b)10,11,21,32,53
c)21,32,53,85
d)none of the above

3)What is the size of 'q'in the following program?
union{
int x;
char y;
struct {
char x;
char y;
int xy;}p;
}q;
a)11
b)6
c)4
d)5

4)Result of the following program is
main()
{
int i=0;
for(i=0;i<20;i++)
{
switch(i)
case 0:i+=5;
case 1:i+=2;
case 5:i+=5;
default i+=4;
break;}
printf("%d,",i);
}
}
a)0,5,9,13,17
b)5,9,13,17
c)12,17,22
d)16,21

5)What is the result
main()
{
char c=-64;
int i=-32
unsigned int u =-16;
if(c>i){
printf("pass1,");
if(c<u)
printf("pass2");
else
printf("Fail2");}
else
printf("Fail1);
if(i<u)
printf("pass2");
else
printf("Fail2")
}
a)Pass1,Pass2
b)Pass1,Fail2
c)Fail1,Pass2
d)Fail1,Fail2
e)none

6) main( )
{
struct employee
{
char name[25];
int age;
float bs;
}
struct employee e;
e.name = “ Hacker”;
e.age = 25;
printf(“%s%d”, e.name, e.age);
}
a) Hacker, 25 b) Hacker 25 c) Error d) None of the above

7) *p++
a)increments p,
b)increments value pointed by p
c) increments both
d none of the above

w
8) What's wrong with the code "char c; while((c = getchar()) !=
EOF) ..."?
a) EOF cannot be used in while loop
b) EOF cannot be used with getchar
c) C should be an integer
d) None of the above

9) What is the O/P of the program given below
main( )
{
static char a[]=”Bombay”;
char *b=”Bombay”;
printf(“%d %d”,sizeof(a),sizeof(b));
}
a. 1 6 b. 1 1 c. 6 6 d. None

10 What is the O/P of the program given below

main( )
{
int I=3;
I=I+ +;
printf(‘%d”,I));
}
a. 3 b. 4 c. undefined d. Error

11What error would the following function give on compilation.
f (int a,int b)
{
int a;
a=20;
return a;
}
a. Missing parantheses in return statement.
b. The function should be defined as
int f(int a,int b)
c. Redeclaration of a.
d. None of the above.

2 )#define str(x) #x
#define Xstr(x) str(x)
#define oper multiply
main( )
{

char *opername=Xstr(oper);
printf(“%s”,opername);
}
a. oper b. multiply c. Error d. None

13)main( )
{
printf(“%c”,7[“sundaram”]);
}
a. S b. m c. 0 d. Error

14)main( )
{
int a[ ]={10,20,30,40,50};
char *p;
p=(char *)a;
printf(“%d”,*((int *)p+4));
}
a. 50 b. 10 c. Error d. None

15)When a array int arr[MAXROW][MAXCOL] is passed to a function fun( ) then the
function fun( ) will be defined as
a. fun(int a[ ][MAXCOL])
b. fun(int a[ ][MAXROW])
c. fun(int (*ptr)[MAXCOL]))
d. fun(int a[ ])

16)main( )
{
printf(“%c”,”abcdefgh”[4]);
}
a. a b. e c. Error d. None

17)main( )
{
printf(“%d %d %d”,sizeof(‘3’),sizeof(“3”),sizeof(3));
}
a. 1 1 1 b. 2 2 2 c. 1 2 2d. 1 1 1

18)main( )
{

struct emp{
char n[20];
int age;}
struct emp e1={“david”,23};
struct emp e2=e1;
if(e1= = e2) printf(“structures are equal”);
}
a. structures are equal
b. No output
c. Error
d. None

19)main( )
{
FILE *fp;
fp=fopen(“x1”,”r”);
}
fp points to

a) The first character in the file
b) A Structure which contains a char pointer which points to the first character in
the file.
c) Name of the file

20)If the following program (myprog) is run from the command line as
myprog “*.c”
What would be the output?
main (int arg c, char *argv[ ])
{
int i;
for (i=1; i<argc; i++)
Printf(“%s”, argv [I]);
}

a) *.C
b) List of all .C files in the current directory
c) “*.C”
d) None

21)Which of the following is true about argv?
a) It is an array of character pointers
b) It is a pointer to an array of character pointers
c) It is an array of integers.
d) None

22)If the following program (myprog) is run from the command line as
myprog Friday Tuesday Sunday
What would be the output?
main(int argc, char *argv[])
{
printf(“%C”, (* ++ argv)[0];
}
a) m b) f c) myprog d) Friday

23)main( )
{
int a;
char *[ ]= “Programming”;
for (a=0; x[a]! = ‘0’; a++)
if (( a%2 = =0) printf(“% C”, x[a]);
}
The output is
a) Programming b) rgamng c) Pormig d) None

24)float *(* x[20]) (int *a)
a) x is array of pointer to functions accepting integer pointer as an argument and
returning a pointer to float.
b) x is pointer to a function which accepts an array of pointers and returns a float
c) x is a pointer to a function that accepts a pointer to an integer array and returns
a character
d) None

25)Declaration for a pointer to function pointer that accepts an argument which is an
array of pointer 5 integers and returns a pointer to a character is
a) char * (* ptr) (int * a[5])
b) char (*x) (int (*a) [])
c) char * (*x) (int a[5])
d) char * (*x[5]) (int a[5])

26) main( )
{
int count, end=20;
for (count=1; count<=end; count++)
{
else
else

else
else
else
else
printf(“%d”, count); }
printf(“%d”, count);
}
The output is
a)No display b) Error c) 20 21 d) 21

27)
main( )
{
int n[25];
n[0] = 100;
n[24] = 200;
printf(“n%d%d”, * n, *(n+24) + *(n+0));
}
a) 100 300 b) 100 200 c) Error d) 300, 100

28)

main( )
{
int i;
scanf( “%d”, &i);
switch( i ){
case 1 :
printf( “Do”);
case 2 :
printf( “ Re “);
case default :
printf( “ SACHIN “);
}}
The output will be
a) DO Re SACHIN b) SACHIN c) Do Re d) Error

29) . main( )
{
int b;
b = f(20);

printf( “%d”, b);
}
int f(int a)
{
a>20 ? return(10) : return(20);
}

a) 20 b) 10 c) No output d) Error

30)
main( )
{
int arr[ ] = { 0, 1, 2, 3, 4};
int *ptr;
for (ptr = &arr[0]; ptr <= &arr[4]; ptr++)
printf(“%d”, *ptr);
}

a) 0 1 2 3 4 b) 1 2 3 4 5 c) Error d) Some Garbage Value

1) main( )
{
struct s1
{
char*str;
int i;
struct s1*ptr;
};
static struct s1 a[ ] ={
{“Nagpur”, 1, a + 1},
{“Raipur”, 2, a + 2},
{“Kanpur”, 3, a}
};
struct s1*p = a;
int j;
for (j = 0; j <=2; j++)
{
printf(“%d”, - - -a[j].i);
printf(“%sn”, ++a[j].str);
}
} a) 1 aipur b) 0 agpur c) 0 aipur d) None
0 agpur 1 aipur 1 agpur
2 anpur 2 anpur 2 anpur

2) #define NULL 0
main( )
{

struct node
{
struct node *previous;
int data;
struct node *next;
};
struct node *p, *q;

p = malloc(size of(struct node));
q = malloc(size of (struct node));

p->data = 75;
q->data = 90;

p->previous = NULL;
p->next = q;
q->previous = p;
a->next = NULL;

while(p!=NULL)
{
printf(“%dn”, p->data);
p =p->next;
}
} a) 90 b) 75 c) 90 d) None
75 90 90

3) main( )
{
struct a
{
int i;
int j;
};
struct b
{
char x;
char y[3];
};
union c
{
struct a aa;
struct b bb;

};
union c u;

u.aa.i = 512;
u.aa.j = 512;

printf(“%d%d”, u.bb.x, u.bb.y[0]);
printf(“%d%d”, u.bb.y[1], u.bb.y[2]);

}
a)2020 b) 0022 c) 0202 d) None

4)main( )
{
int a = 3, b = 2, c =1, d;
d = a| b & c;
printf(“d = %dn”, d);
d = a| b & ~ c;
printf(“d =%dn”, d);
} a) d = 2 b) d = 3 c) d = 1 d) one
d=2 d=3 d=1

5)
What is the output?
line 1 main ( )
line 2 {
line 3 char a{3}{3}=
{{‘a’,’b’,’c’},{‘p’,’q’,’r’},{‘x’,’y’,}}
line 4 char**p;
line 5 *p=a[0];
line 6 printf(“%sn”.*p);
line 7 }
c)
a)Abc Abcpqrxy
d). None of the above
b)Compilation error

6. What will be the output of this program?
#include<stdio.h>

void main(void)
{
int varl=5,var2=5,var3=6,minmax;
minmax=(var1>var2)?(var1>var3) ? varl:var3:(var2>var3)? var2:var3;
printf(“%dn”,minmax);
}
This program will
a. c.
Produce a runtime error Print 5
b. d. Print 6
Produce a compilation error

7. What will be the output of the following program?
main( )
{
int x = 1, y = 4, z = 4;
printf("ans=%d", z >= y && y >= x ? 100:200);
}

a. 100 c. 200
b. 100 200 d. None of the above

8. To get the output
c=0 d=2
What should be coded in the blank space?
main( )
{
enum code
{
add,
delete,
modify,
unchanged
};
............................... ;
CODE c,d;
c = add;
d = modify;
printf("c=%d d=%d",c,d);
}

a. Typedef code CODE c. typedef enum code CODE
b. Typedef enum code d. None of the above

9
#include"stdio.h"
main( )
{
FILE *fp;
Char str[80];

/*TRIAL.C contains only one line:
it’s a round,round,round world!*/

fp=fopen(“TRIAL.C","r");
________________________ ;
puts(str);
}
To get this output "its a round, round, round world!" in an infinite loop, what should
be coded in the blank space.

a. While(fgets(Str,80,fp)!=EOF) c. while(getch(fp)!=EOF
b. While(fp!=NULL) d. None of the above

10)What will be the output of the following program?
#define ISLOWER(a) (a >= 97 && a <= 127)
#define TOUPPER(a) (a-32)
main( )
{
char ch='c';
if(ISLOWER(ch))
ch=TOUPPER(ch);
printf("%c",ch);
}
a. C c. 99
b. C d. None of the above

11)for(; i<5;) is equivalent to
1. while(i<5) statements;
2. do statements;
while(i<5);
3. if(i<5) statements;

a. 1,2,3 b. 2 c. 1,2 d. 1

12) If a = 010011 then a << 2 is

a. 010110
b. 011100
c. 101100
d. None of the above

13. If you are using “open” function for opening a file the file handle should be of
____________ type.

a) FILE
b) int
c) char

14)main( )
{
static float a[ ] = { 13.24, 1.5}
float *j, *k;
j = a;
k = a + 2;
j = j * 2;
k = k/2;
printf(“%f%f ”, *j, *k);

}
a) Error b) Some value c) No output d) None of the above

15)main( )
{
static char s[ ] = “Rendezvous”;
printf(“%d”, *(s+ strlen(s)));
}

a) 0 b) Rendezvous c) ‘0’ d) Error

16)# include “stdio.h”
main( )
{
FILE *fp;
char c;
fp = fopen(“TRY.C, “,”r”);
if(fp = NULL)
{
puts(“Cannot open file”);
exit(1)
}
while((c =getc(fp))! = EOF)

putch(c );
fclose(fp);
}
a) Error c) Each character read would be displayed on the screen

b) No output

17)main( )
{
char ch = `E`
switch(ch)
{
case(ch > = 65 && ch < =90):
printf(“Capital Letter”);
break;
case(ch >=97 && ch<=122):
printf(“small case letter”);
break;
default:
printf(“BAI”);
}
}
a) Error message b) Capital Letter c)small case letter d) BAI

18) Carefully go through the following code
#include <stdio.h>
void main(void);
void main(void)
{
struct s{
int x;
float y;
}s1 = {25,45.00};

union u{
int x;
float y;
}u1;
u1=(union u)s1;
printf("%d and %f",u1.x,u1.y);
}

/* What will this program point ?
a) 25 and 45.00
b) Produce a compilation error
c) 45 and 45.00
d) Produce a runtime error */

19)
Consider the following C program.
#include <stdio.h>
void main(void)
{
unsigned int c;
unsigned x=0x0003;
scanf("%u",&c);
switch(c&x)
{
case 3 : printf("Hello! t");
case 2 : printf("Welcome t");
case 1 : printf("To All t");
default: printf("n");
}
}

If the value input for the variable c is 10, what will be the output
of the program ?

a) The program will generate a compile time error as there is no break
statement for the various case choices.
b) The program will print Hello!
c) The program will print Welcome To All

20)
Study the following program
#include <stdio.h>
void main(void);
void main(void)
{
int var1=5,var2=5,var3=6,minmax;
minmax = (var1 > var2) ? (var1 > var3) ? var1:var3:(var2 > var3) ? var2:var3;
printf("%dn",minmax);
}
This program will
a) Produce a runtime error
b) Produce a compilation error
c) Print 5
d) Print 6

21)
Consider the following C program.
#include <stdio.h>
void main(void)

{
unsigned int c;
unsigned x=0x0003;
scanf("%u",&c);
switch(c&x)
{
case 3 : printf("Hello! t");
case 2 : printf("Welcome t");
case 1 : printf("To All t");
default: printf("n");
}
}

If the value input for the variable c is 10, what will be the output
of the program ?

a) The program will generate a compile time error as there is no break
statement for the various case choices.
b) The program will print Hello!
c) The program will print Welcome To All

main( )
{
int i=3;
switch (i)
{
case 1:
printf("au revoir!”);
case 2:
printf("adieu!");
case 3:
continue;
default:
printf("plain simple goodbye!");
}
}

a. plain simple goodbye c. au revoir adieu
b. Error d. None of the above


main( )
{
static float a [ ]={13.24,1.5,1.5,5.4,3.5};
float *j, *k;
j=a;
k=a+4;
j=j*2;
k=k/2;
printf("%f %f",*j,*k);
}

a. 13.24 1.5 c. Compilation error
b. 15.5 5.4 d. Runtime error

24. What is the output of the following code?
main ( )
{
struct xyz
{
int I;
int k;
} pqr = {100,300};
struct xyz *z;
z=&pqr;
z->I=300;
z->k=100;
abc(z)
}

abc(char *p)
{
p++;
printf(“%dn”,*p);
}

a. 5
b. 1
c. 2

25. What will be the output of the code given below?
main ( )
{
int c =0,d=5,e=10, a;
a=c>1?d>1||e>1? 100:200:300;
printf(“a=%d”,a);
}

a. 300
b. 200
c. 100
d. Error

26. What will this program print?
#define MAX (x,y)(x)>(y)>(y)?(x)(y)
main ( )
{
int I=10,j=5,k=0;
k=MAX(I++,++j);
printf(“%d…%d…%d”,I,j,k);
}

a. 11…12…13
b. 12...11...13
c. 12...6…11

27. What will be the output of the following ‘C’ program?
main ( )
{
int I=0;
switch (I)
{
case 0:
I++ ;
printf(“%d..”,I);
case 1:
case 2:
}
}

a. 1..1..1..
b. 1..
c. 1..1..
d. Error

28. What will be the output of the code given below?
main ( )
{
static char *s [ ] ={
“ice”,
“green”,
“cone”,
“please”
};
static char **ptr[ ]={s+3,s+2,s+1,s};
char ***p=ptr;
printf(“%sn”,**++p);
printf(“%sn”,*--*++p+3);
printf(“%sn”,*p[-2]+3);
printf(“%sn”,p[-1][-1]+1);
}

A cone B ase C reen D None

ase cone ase
reen reen cone

29 What will be the result of the following program?
main ( )
{
void f(int,int);
int i=10;
f(i,i++);
}
void f(int i, int j)
{
if(i>50)
return;
i+=j;
f(i,j);
printf(“%d”,i);
}

a. 85,53,32,21 b. 10,11,21,32,53 c. 21,32,53,85 d. None

30. What will be the output of the following code?
main ( )
{
FILE*fp;
fp=fopen(“TRIAL.C”,”r”);
fclose(fp);

}

a. The file TRIAL.C if existing will be opened in read mode
b. Error will be generated because c file cannot be opened through fopen
c. Error will be generated because fclose( ) cannot be given with the file pointer

31 What is the value of i after the following function is executed 17 times
void test ( )
{
static float i=0.0;
i=7.5;
i=+=7.5;
}

a. 7.5 c. 15.0
b. 15+16*7.5 d. 0.0

32. What is the value of m when the following program runs?
void transform(register int*x)
{
x+=5*3;
}
void main ( )
{
register int m=3;
transform(&m);
}

a. 18
b. 24
c. 3
d. Erroneous program as a register variable has no address

_______________________________________________________________________
_

FUNDAMENTALS OF COMPUTERS

1. What was the name of the first commercially available Microprocessor chip?
a. Intel 8008
b. Intel 8080
c. Intel 4004
d. Motorola

2. The parity bit is added for ______________ purpose

a. Coding
b. Indexing
c. Error detection
d. Controlling

3. A logic gate is an electronic circuit which

a. Makes logic decisions
b. Allows electron flow in only direction
c. Works on binary algebra
d. Alternates between 0 and 1

4. The process of converting analog signal into digital signals so they can be
processed by a receiving computer is referred to as

a. Modulation
b. Demodulation
c. Synchronizing
d. Desynchronozing

5. A distributed data processing configuration in which all activities must pass
through a centrally located computer is called

a. Ring Network
b. Spider network
c. Hierarchical Network
d. Data control Network

6. Communication between computers is always

a. Serial
b. parallel
c. series parallel
d. direct

7. Two basic types of Operating Systems are

a. Sequential and direct
b. Batch and timesharing
c. Direct and interactive
d. Batch and interactive

8. Multiprogramming was made possible by

a. Input/Output units that operate independently of the CPU
b. Operating Systems
c. Both c and d
d. Neither a and b

9. What is the alternative name for application software

a. Utility software
b. Specific software
c. End-user software
d. Practical software

10 Which of the following is not the characteristic of a relational database model

a. Tables
b. Treelike structure
c. Complex logical relationship
d. Records

11. The language used in the application programs to request data from the DBMS is
referred to as the

a. DML
b. DDL
c. Query language
d. Any of the Above

12. In data flow diagrams, an originator or receiver of data is usually designated by

a. square box
b. a circle
c. a rectangle
d. an arrow

13. A. Decision trees are easier for most people to understand than decision tables.

B. Structured English is easier to convert to program code than regular narrative
English.

a. both A and b are true
b. both A and B are false
c. Only A is true
d. Only B is true

14. Who invented the GOTO instruction that tells a computer to jump backwards or
forwards in its program

a. Charles Babbage
b. Ada Augusta Byron
c. JM Jackguard
d. Grace Murray Hooper

15. What is the name of the program coding that is unnecessarily complex and
difficult to follow

a. Pseudocode
b. Spaghetti
c. Complex Code
d. Object Code

16. What is the name of the programming technique, which emphasizes breaking
large and complex tasks into successively smaller sections?

a. Scrambling
b. Structured Programming
c. Micro Programming
d. Sub Programming

17. Data integrity refers to

a. Privacy of data
b. The simplicity of data
c. The validity of data
d. The security of data

18. Which data communication method is used for sending data in both directions at
the same time.

a. Super duplex
b. Simplex
c. Half duplex
d. Full duplex

19. What is the usual number of bits transmitted simultaneously in parallel data
transmission used by microcomputers?

a. 6
b. 9
c. 8
d. 7

20. The transfer of data from a CPU to peripheral devices of a computer is achieved
through

a. modems
b. computer ports
c. interfaces
d. buffer memory

21. The channel in the data communication model can be

a. postal mail services
b. telephone lines
c. radio signals
d. all the above

22. The systematic access of small computers in a distributed data processing system
is referred to as

a. dialed service
b. multiplexing
c. polling
d. conversational mode

23. A characteristic of a multi programming system is

a Simultaneous execution of Program instructions from two applications
b. Concurrent processing of two or more programs
c. Multiple CPU’s
d. All the above

24. In the IBM PC - AT, What do the words AT stand for

a. Additional Terminal
b. Advance Technologies
c. Applied Technologies
d. Advanced terminology

25. Different components on the motherboard of a PC processor unit are linked
together by sets of parallel electrical conducting lines. What are these lines
called?

a. Conductors
b. Buses
c. Connectors
d. Connectivity

26. Execution of instructions from different and independent programs by a computer
at the same instant time is called

a. Multiprogramming
b. Multiprocessing
c. Concurrent Programming
d. Multitasking

27. Which of the following terms is the most closely related to main memory?

a. nonvolatile
b. permanent
c. control unit
d. temporary

28. Which of the following are true?

a. Fields are composed of bytes
b. Fields are composed of characters
c. Records are composed of fields
d. All the above

29 Which of the following hardware component is most volatile?

a. ROM
b. RAM
c. PROM
d. EEPROM

30. Which of the following affects the processing power?

a. Data bus capacity
b. Addressing scheme
c. Register size
d. All the above

31 An integrated circuit is

a. a complicated circuit
b. an integrating device
c. much costlier than single transistor
d. fabricated in a single silicon chip

32 Data processing is

a. The same thing as data collection
b. Similar to computer programming
c. Mostly associated with commercial network
d. Akin to data coding

33 A program written in machine language is called as ___________ program

a. assembler
b. object
c. computer
d. machine

34 A factor in the section of source language is

a. programmer skill
b. language availability
c. program compatibility with other software
d. all the above

35. Which of the following is not transmission medium

a. Telephone lines
b. Coaxial cables
c. Modem
d. Microwave systems

36. 10 GB HD space refers to

a. 10 gigabytes of main memory
b. 10 gigabytes of section memory
c. 10 gigabytes of Virtual memory
d. All the above

37. A byte is
a. 8 bits
b. 4 bits
c. 16 bits
d. 32 bits

38. If you have a 64 kbps Internet line, it means that your maximum data transfer rate
is

a. 64 X 1000 bits per sec
b. 64 X 1024 bits/sec
c. 64 X 1000 bytes/sec
d. 64 X 1024 bytes/sec

39. Unix is

a. Multi-user OS
b. Multi-user and Multitasking OS
c. Multitasking OS
d. Batch OS

40. A stack is a

a. FIFO list
b. LIFO list
c. Linear list
d. Circular list

41. A directory is organized as

a. An inverted tree
b. Is a one-d list of all files in the system
c. Contain a list of all users of the system
d. All the above

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