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* 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
1.
#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()
LBRACKET
int x=2;
printf("%d",x);
RBRACKET
a) This program will compile
b) compilation error
3.
#include <stdio.h>
int main()
{
int x=4;
{
{
{
int x=2;
printf("%d",x);
}
}
}
}
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
constraints.
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
a. WHERE,HAVING,GROUPBY,ORDERBY
b. GROUPBY, WHERE, HAVING, ORDERBY
c. ORDERBY,GROUPBY,WHERE,HAVING
d. NONE OF THE ABOVE
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
elements
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
run?
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 ..
#include<stdio.h>
void main()
{
char buffer[10]={"Genesis"};
printf("%d",&buffer[4]-(buffer));
}
a. 3
b. 4
c. 0
d. illegal pointer subtraction
14. what is the output for
#include<stdio.h>
main()
{
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..
1+2/3*4+1
a. 2
b. 3
c. 4
d. 4.666666
e. 5
16. identify the relationship between the many
employees
working
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
it
follows..
18. the process of including some controlled redundancy
for
the
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
technical.......some
ques. of g apti were very lengthy so don't end up in
solving
them.....time was less......some 15 ques. from
arithmetic......and
rest
15
logical,statement interpretation,arrangement,tense
correction......and
like
that......
i am enclosing here the 2 C questions :
1. given a square matrix which consists only of 1 and
0......find
which
rows,which cols and which diagonals consist entirely of
1's.
2. given an array of integers find all possible
combinations of
the
numbers whose sum equal to 90.....
ans : knapsack problem (in data structures - aho ullman)
Note : for them solution was not the criteria.......but
the
approach
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;
main()
{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
the
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)
{if(*s)
print(++s);
printf("%c",*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?
fun()
{int i=10;
if(i<10)
return 2.0;
else
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;
fun(i=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 Paper====
Oracle at BIT...well i cleared the written but the
interview was
really rigourous...it was in 4 rounds....with streching
upto 8
hrs
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
qs
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
====ORACLE Paper====
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?.
7.
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
b. HTTP
c. HTML
d. TCP/IP
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
8.module
9.destructive
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