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Home » Placement Papers » Oracle Placement Papers » Oracle Placement Paper

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Oracle Placement Paper


Oracle Paper
* Some questions are compiler based i.e. given code snippet will compile or not, if not the reason.
* some question are from the prfix/postfix inc/dec operation based code snippets.
* More than 3 question are based on the sorting algorithms.
* some questions are from the pointers based.
* Code snippets involving memory allocation function.
* All the questions are from c 
Some of the question ,i remember, are the following
#include <stdio.h>
#define sqr(x) (x*x)
int main()
int x=2;
printf("value of x=%d",sqr(x+1));

What is the value of x?
a)4 b)5 c)None d)can not compile
Ans: 5 
2. what is the wrong in the following program?
#define LBRACKET {
#define RBRACKET }
#define MAIN main
int MAIN()
int x=2;
a) This program will compile
b) compilation error 
#include <stdio.h>
int main()
int x=4;
int x=2;
a) 4 b)2 c)Nesting not allowed d)dependent on the compiler
4. Go through the following code sinippet
char a[20];
a="Hello Orcale Test";
will this compile?
a) Compilation Error b) Strings are allowed in c but cannot be assigned directly.
c) dependent on compiler
d) will work fine.
5. the expression a+b*c should be conveted to +a*bc. Using tree structure,
Which traversal is the correct one?
a) Postfix traversal b) prefix traversal c) infix traversal d)None
6. what about brk, sbrk
a) system calls b) function calls c) user defined functions 
7. Why the use of alloca() is discouraged?
8. Macros support multiple arguments ?
9. the header file 
a) contains only compiler directives and extern variables
b) contail only structures and unitions
c) a & b
10. what about "char *(*(*a[])())();"

: oracle paper***

1. An index is automatically generated with the following 
a. Check 
b. Not null 
c. Primary key 
d. Foreign key 
2. Select mod(16,3) from emp; 
a. 1 
b. 2 
c. 3 
d. Error in the stmt 
3. The data dictionary view to see the list of constraints enabled 
on a 
table is 
a. user_tables 
b. user_table_constraints 
c. user_constraints 
d. There is no dictionary view available for the same 
4. Identify the pseudocolumns 
a. rowid 
b. sysdate 
c. rowval 
d. dual 
5. select deptno, count(empno) from emp 
where count(empno)>=5 
group by deptno; 
identify the line no which contains the error 
a. 1 
b. 2 
c. 3 
d. 1,3 
6. choose the group function that can be used with any data type 
a. sum() 
b. min() 
c. avg() 
d. all 
7. which of the following sequence is true 
8. which of the proper keyword to deallocate memory 
a. free 
b. delete 
c. clear 
d. remove 
9. what is the index no of the last element of an array with 29 
a. 29 
b. 28 
c. 0 
d. programmer defined 

10. what is the final value of x when the code for(int 
x=0;x<10;x++) is 
a. 10 
b. 9 
c. 0 
d. 1 
11. what is the data type of FILE? 
a. integer 
b. union 
c. pointer 
d. structure 
12. if "a" is an array of 5*5 dimension, a[2][4] is same as 
a. **(a+2+4) 
b. *(a+2) + *(a+4) 
c. **(a+2)+4 
d. *(*a+2)+4) 
13. what is the output of .. 
void main() 

char buffer[10]={"Genesis"}; 

a. 3 
b. 4 
c. 0 
d. illegal pointer subtraction 
14. what is the output for 

static int a[]={5,10,15,20}; 
int * ptr=a; 
int ** ptr_ptr=&ptr; 
printf("\n %d",**ptr_ptr++); 

a. 5 
b. 10 
c. 15 
d. 6 
15. what is the value of expr.. 
a. 2 
b. 3 
c. 4 
d. 4.666666 
e. 5 
16. identify the relationship between the many employees 
in a dept.. 
a. one to one 
b. one to many 
c. many to one 
d. many to many 
17.there was a table given and it was asked which normal form does 
18. the process of including some controlled redundancy for 
sake of performance 
is known as 
a. normalization 
b. Cartesian product 
c. Denormalization 
d. None 
19. in a doubley linked list 
a. the last node contains the address of the first node 
b. each node contains the address of previous and next node 
c. each node contains the address of previous node 
d. none 
20. in a queue each node contains 
a. the address of previous node 
b. address of next node 
c. address of both the previous and next node 
d. none of the above 

oracle paper
The test was of 1 hour 30 ques. g apti and 30 of 
ques. of g apti were very lengthy so don't end up in solving 
them.....time was less......some 15 ques. from arithmetic......and 
logical,statement interpretation,arrangement,tense 
i am enclosing here the 2 C questions : 
1. given a square matrix which consists only of 1 and 0......find 
rows,which cols and which diagonals consist entirely of 1's. 
2. given an array of integers find all possible combinations of 
numbers whose sum equal to 90..... 
ans : knapsack problem (in data structures - aho ullman) 
Note : for them solution was not the criteria.......but the 
was important......the solution should be generalised and 
optimized........optimization was given the top priority........ 
here is the techincal paper : 
plz try to solve them urself by trying on comp. 
1. const int MAX=10; 
{enum a {a,b,MAX}; 
print MAX; 

2. enum object is a const which can only be assigned a value at 
initialization or a variable which can be assigned any value in 
middle of 
the program? 
3. void *p; 
what operation cannot be performed on p? 
ans : arithmetic operation unless it is properly typecasted 
4. char **p="Hello"; 
print p,*p,**p 
5. main() 
{char str[]="Geneius"; 
print (str); 

print(char *s) 

6. what does the function fcloseall() does ? 
7. main() 
{printf("Genius %d",fun(123)); 

fun(int n) 
{return (printf("%d",n)); 

8. difference between definition and declaration. 
9. find the error? 
{int i=10; 
return 2.0; 
return 3.0; 

10. int a=9,b=5,c=3,d; 
d=(b-c)<(c-a) ? a : b; 
print d 
11. 1+2/3*4+1=? 
12. In C++, a variable can be defined wherever needed whereas not 
in C 
13. main() 
{int i=4; 
print i; 

fun(int i) 
{return i/2; 

14. what is an array ? 
15. printf("\" NITK %%SURAHKAL%% !\""); 
16. difference between scanf and gets in case of string input 
17. table t1 m rows and x cols 
table t2 n rows and y cols 
in t1*t2 rows? cols=? 
ans. m*n ,x+y 
18. symbol of realtionship between 2 entities? 
19. which one cannot come in data modelling 
a. customer b. student c. office d. speed 
20. can a database table exist without a primary key ? 
21. whether higher normal forms better than lower forms as far 
redundancy is concerned ? 
22. file is at which level 
ans. conceptual level 
23. what is a foreign key 


Oracle at BIT...well i cleared the written but the interview was 
really rigourous...it was in 4 rounds....with streching upto 8 
per candidate who was selelcted....Oracle took a total of 10 
people(9 BEs and 1 MCA) 

The oracle paper was difficult to remember... 

but i can give brief outline as to what could be studied...The 
Technical consisted of C,Pl/SQL and JAVA....go through Ivan 
Bayross for Pl/SQL and Pointers in C by Kanetkar....some of the 
were directly from there..... 

u may also do DBMS concepts.....as to what is Data 
Modelling,Transactions, Distributed Databases 

In my interview.....first we had a short test on C Programming 
where in i 
was given C programs to write on PREORDER Tree traversal and 
Conversion of 
Infix to Postfix expression...the interview followed where they 
grilled me 
on Java and C preprocessors from head to toe...but was unable to 
clear the 
second round of interview 


section 2:

1. what is sparese matrices?. give (at least) two methods for implemetation
rather than two dimentional array.
2.what are cheap locks/latches?.
3.what is two phase locking?. Name two locks.
4. What are volatile variables in C?. What is their significance ?.
5. will these two work in same manner
#define intp int *
typedef int * inpp;
6. what are binary trees?. what is its use?.

section 3 :

A). write header file containing functions used, etc (C),
problem is to maitain a Queue. user has to give size and type of Queue.
This problem is like this I don't remember exactly.
B). C++
1. What is polymorphism?
2. What is Inheritence?.
3. Mention four Object Oriented Programming Languages?>
4. Mention basic concepts of OOP.
5. What are messages in OOP?.
6. What is garbase collection?.
7.what is object?.
8. what is a class?.

Section 4:

1. expand the following:
a.SEI b. ISO
2. what are different levels of SEI?.
3. What is significance of ISO?>
4. Expand the following:
a. WWW
5. what is Black box testing?.
6. explain the following:
1. white box testing
2. white box testing
3. boundary testing
4 stress
5. negative
6. system
7. unit

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