Oracle
Oracle Placement Question Paper
1. How compiler treats variables of recursive functions
2. What is orthogonal matrix?
3. Given two tables and asked 2 qns on those table ,
4. One is on join and another is on NOT IN
5. Given some qns on pointers( pretty easy)
6. Given five qns on data structures like , lifo, fifo
7. Qtn on primary key
8. How NULL in sql is treated?
9. Given a doubly linked list and asked r->left->right->data ans: r->data
10. Explain const char *ptr and char *const ptr
11. Remaining i didn`t remember
Technical
12. What is the output of the following program?< ?xml:namespace prefix = o ns urn:schemas -microsoft-com office:office" "
#include
#include
13. What is the output of the following program listing?
#include
void main ( )
{
int x,y:
y=5;
x=func(y++);
printf(“%sn”,
(x==5)?”true”;”false”);
}
int func(int z)
{
if (z== 6)
return 5;
else
return 6;
}
A True
B false
C either a or b
D neither a nor b
14. What is the output of the following progarm?
#include
main( )
{
int x,y=10;
x=4;
y=fact(x);
printf(“%dn”,y);
}
unsigned int fact(int x)
{
return(x*fact(x-1));
}
A. 24
B. 10
C. 4
D. none
15. Consider the following C program and chose collect answer
#include
void main( )
{
inta[10],k;
for(k=0;k<10;k++)
{ a[k]=k;}
printf (“%dn”,k);
}
A. value of k is undefined ; unpredictable answer
B. 10
C. program terminates with run time error
D. 0
16. Consider the prog and select answer
#include
void main ( )
{
int k=4,j=0:
switch (k)
{
case 3: j=300;
case 4: j=400:
case 5: j=500;
}
printf (“%dn”,j);
}
A. 300
B. 400
C. 500
D. 0
17. Consider the following statements:
Statement 1 A union is an object consisting of a sequence of named members of various types
Statement 2 A structure is a object that contains at different times, any one of the several members of various types
Statement 3: C is a compiled as well as an interpretted language
Statement 4: It is impossible to declare a structure or union containing an instance of itself
A. all the statements are correct
B. except 4 all are correct
C. statemnt 3 is only correct
D. statement 1,3 are incorrect either 2 or 4 is correct
18. consider the following program listing and select the output
#include
main ( )
{
int a=010,sum=0,tracker:
for(tracker=0;tracker< =a;tracker++)
sum+=tracker;
printf(“ %dn”,sum);}
A. 55
B. 36
C. 28
D. n
19. Spot the line numbers , that are valid according to the ANSI C standards?
Line 1: #include
Line 2: void main()
Line 3: {
4 : int *pia,ia;
5 :float *pafa,fa;
6 :ia=100;
7 :fa=12.05;
8 :*pfa=&ia;
9 :pfa=&ia;
10 :pia=pfa;
11 :fa=(float)*pia;
12 :fa=ia;
13 :}
a. 8 and 9
b. 9 and 10
c. 8 and 10
d. 10 and 11
20. What is the o/p of the follow pgm?
#include
main()
{
char char_arr[5]=”ORACL”;
char c=’E’;
prinf(“%sn”,strcat(char_arr,c));
}
a: oracle
b. oracl
c. e
d. none
21. consider the following pgm listing
#include
main()
{
int a[3];
int *I;
a[0]=100;a[1]=200;a[2]=300;
I=a;
printf(“%dn”, ++*I);
printf(“%dn”, *++I);
printf(“%dn”, (*I)–);
printf(“%dn”, *I);
}
what is the o/p
a. 101,200,200,199
b. 200,201,201,100
c. 101,200,199,199
d. 200,300,200,100
22. which of the following correctly declares “My_var” as a pointer to a function that returns an integer
a. int*My_Var();
b. int*(My_Var());
c. int(*)My_Var();
d. int(*My_Var)();
23. what is the memory structure employed by recursive functions in a C pgm?
a. B tree
b. Hash table
c. Circular list
d. Stack
24. Consider the follow pgm listing?
Line 1: #include
2: void main()
3: {
4: int a=1;
5: const int c=2;
6: const int *p1=&c;
7: const int*p2=&a;
8: int *p3=&c;
9: int*p4=&a;
25. what are the lines that cause compilation errors?
a. 7
b. 8
c. 6 and 7
d. no errors
26. what will be the o/p
#include
main()
{
inta[3];
int *x;
int*y;
a[0]=0;a[1]=1;a[2]=2;
x=a++;
y=a;
printf(“%d %dn”, x,(++y));
}
a. 0,1
b. 1,1
c. error
d. 1,2
what is the procedure for swapping a,b(assume that a,b and tmp are of the same type?
a. tmp=a; a=b;b=temp;
b. a=a+b;b=a-b;a=a-b;
c. a=a-b;b=a+b;a=b-a;
d. all of the above