Section A
1. Which of the following involves context
switch,
(a) system call
(b) priviliged instruction
(c) floating poitnt exception
(d) all the above
(e) none of the above
Ans: (a)
2. In OST, terminal emulation is done in
(a) sessions layer
(b)
application
layer
(c) presentation layer
(d) transport layer
Ans: (b)
3. For a 25MHz processor , what is the time
taken by the instruction which needs 3 clock
cycles,
(a)120 nano secs
(b)120 micro secs
(c)75 nano secs
(d)75 micro secs
4. For 1 MB memory, the number of address
lines required,
(a)11
(b)16
(c)22
(d) 24
Ans. (b)
5. Semaphore is used for
(a) synchronization
(b) dead-lock avoidence
(c) box
(d) none
Ans. (a)
6. Which holds true for the following
statement class c: public A, public B
a) 2 member in class A, B should not have
same name
b) 2 member in class A, C should not have
same name
c) both
d) none
Ans. (a)
7. Question related to java
8. OLE is used in
a) inter connection in
unix
b) interconnection in WINDOWS
c) interconnection in WINDOWS NT
9. Convert a given HEX number to OCTAL
10. Macros and function are related in what
aspect?
(a)recursion
(b)varying no of arguments
(c)hypochecking
(d)type declaration
11.Preproconia.. does not do which one of
the following
(a) macro
(b) conditional compliclation
(c) in type checking
(d) including load file
Ans. (c)
12. Piggy backing is a technique for
a) Flow control
b) Sequence
c) Acknowledgement
d) retransmition
Ans. (c)
13. In signed magnitude notation what is the
minimum value that can be represented with 8
bits
(a) -128
(b) -255
(c) -127
(d) 0
14. There is an employer table with key
fields as employer number data in every n'th
row are needed for a simple following
queries will get required results.
(a) select A employee number from employee A
, where exists from employee B where A
employee no. >= B
employee having (count(*) mod n)=0
(b) select employee number from employe A,
employe B where A employe number>=B employ
number
group by employee number having(count(*) mod
n=0 )
(c) both (a) & (b)
(d) none of the above
15. Type duplicates of a row in a table
customer with non uniform key field customer
number you can see
a) delete from costomer where customer
number exists( select distinct customer
number from customer having count )
b) delete customer a where customer number
in b rowid
c) delete customer a where custermor number
in( select customer number from customer a,
customer b )
d) none of the above
Section B
1. Given the following statement enum day =
{ jan = 1 ,feb=4, april, may} What is the
value of may?
(a) 4
(b) 5
(c) 6
(d) 11
(e) None of the above
2. Find the output for the following C
program
main()
{int x,j,k;
j=k=6;x=2;
x=j*k;
printf("%d", x);
3. Find the output for the following C
program
fn f(x)
{ if(x<=0)
return;
else f(x-1)+x;
}
4. Find the output for the following C
program
i=20,k=0;
for(j=1;j<i;j=1+4*(i/j))
{k+=j<10?4:3;
}
printf("%d", k);
Ans. k=4
5. Find the output for the following C
program
int i =10
main()
{int i =20,n;
for(n=0;n<=i
{int i=10;
i++;
}
printf("%d", i);
Ans. i=20
6. Find the output for the following C
program
int x=5;
y= x&y
7.Find the output for the following C
program
Y=10;
if( Y++>9 && Y++!=10 && Y++>10)
{printf("%d", Y);
else
printf("%d", Y);
}
Ans. 13
8. Find the output for the following C
program
f=(x>y)?x:y
a) f points to max of x and y
b) f points to min of x and y
c)error
Ans. (a)
9. What is the sizeof(long int)
(a) 4 bytes
(b) 2 bytes
(c) compiler dependent
(d) 8 bytes
10. Which of the function operator cannot be
over loaded
(a) <=
(b) ?:
(c) =
(d) *
11. Find the output for the following C
program
main()
{intx=2,y=6,z=6;
x=y==z;
printf(%d",x)
}
Section C
Section C (Programming
Skills) Answer the
questions based on the following program
STRUCT DOUBLELIST
{ DOUBLE CLINKED
INT DET; LIST VOID
STRUCT PREVIOUS; (BE GIVEN AND A PROCEDURE
TO DELETE)
STRUCT NEW; (AN ELEMENT WILL BE GIVEN)
}
DELETE(STRUCT NODE)
{NODE-PREV-NEXT NODE-NEXT;
NODE-NEXT-PREV NODE-PREV;
IF(NODE==HEAD)
NODE
}
1. In what case the prev was
(a) All cases
(b) It does not work for the last element
(c) It does not for the first element
(d) None of these
Answer the questions based on the following
program
VOID FUNCTION(INT KK)
{KK+=20;
}
VOID FUNCTION (INT K)
INT MM,N=&M
KN = K
KN+-=10;
}
2. What is the output of the following
program
main()
{ int var=25,varp;
varp=&var;
varp p = 10;
fnc(varp)
printf("%d%d,var,varp);
}
(a) 20,55
(b) 35,35
(c) 25,25
(d)55,55
3. Here is the structure declaration of a
doubly linked list
struct dlink {
int nodeid;
struct dlink *next;
struct dlink *prev;
} dlink_t;
A pointer of the head of the linked list is
maintained as a global variable, whose
definition is dlink_t *head; The funtion
remove_element(dlink_t *rp), needs to remove
the node pointed to the rp and adjust the
head. The first node's prev
and the last node's next are NULL.
remove_element(dlink_t *rp)
{
rp->prev->next = rp->next;
rp->next->prev = rp->prev;
if( head == rp)
head = rp->next;
} Which of the following statement is true
about the fution remove_element
a) It work when head is the same as rp
b) It does not work when rp is the last
element on the list
c) It sets the head of the list correctly
d) It works in all cases
Answer :B) It does...
4. Consider the following function written
in c:
#define NULL 0
char *
index(sp,c)
register char *sp,c;
{
do {
if(*sp == c)
return (sp);
} while (*sp++);
return NULL;
}
The first argument sp, is a pointer to a C
string. The second argument, c, is a
character. This function scarches
for the character c, in the string. If it is
found a pointer to that location is returned
else NULL is returned. This
function works
a) Always
b) Always, but fails when the first byte
contais the character c
c) works when c is a non NULL character only
d) Works only when the character c is found
in the string
ans: a
5. What is printed when this program is
executed
main()
{
printf ("%d\n",f(7));
}
f(X)
{
if ( <= 4)
return x;
return f(--x);
}
a) 4
b) 5
c) 6
d) 7
ans: a
6. On a machine where pointers are 4 bytes
long, what happens when the following code
is executed.
main()
{
int x=0,*p=0;
x++; p++;
printf ("%d and %d\n",x,p);
}
a) 1 and 1 is printed
b) 1 and 4 is printed
c) 4 and 4 is printed
d) causes an exception
7. Which of the following is the correct
code for strcpy, that is used to copy the
contents from src to dest?
a) strcpy (char *dst,char *src)
{
while (*src)
*dst++ = *src++;
}
b) strcpy (char *dst,char *src)
{
while(*dst++ = *src++ )
}
c) strcpy (char *dst,char *src)
{
while(*src)
{ *dst = *src;
dst++; src++;
}
}
d) strcpy(char *dst, char *src)
{
while(*++dst = *++src);
}
ans:b
8. Consider the following program
main()
{
int i=20,*j=&i;
f1(j);
*j+=10;
f2(j);
printf("%d and %d",i,*j);
}
f1(k)
int *k;
{
*k +=15;
}
f2(x)
int *x;
{
int m=*x,*n=&m;
*n += 10;
}
The values printed by the program will be
a) 20 and 55
b) 20 and 45
c) 45 and 45
d) 45 and 55
e) 35 and 35
9. what is printed when the following
program is compiled and executed?
int
func (int x)
{
if (x<=0)
return(1);
return func(x -1) +x;
}
main()
{
printf("%d\n",func(5));
}
a) 12
b) 16
c) 15
d) 11
10. COnsider the following of c code in two
files which will be linked together and
executed .
a.c: int i;
main()
{
i = 30;
f1();
printf("%d\n",i)
}
b.c: static int f1()
{
i+=10;
} which of the following is true ?
a) a.c will fail in compilation phase
because f1() is not declared
b) b.c will fail in compilation because the
variable i is not declared
c) will print 30
d) will print 40
e) a & b
ans: e) a & b
11. Consider the following prg
void funca (int *k)
{
*k += 20
}
void funcb (int *x)
{
int m=*x,*n = &m;
*n+=10;
}
main()
{
int var = 25,*varp=&var;
funca(varp);
*varp += 10;
funcb(varp);
printf ("%d and %d\n",var,*varp);
}
The values printed when the above prg is
complied and executed are:
a) 20 and 55
b) 20 and 45
c) 45 and 55
d) 55 and 55
e) 35 and 35
ans: d
12. consider the following program:
# include
class x {
public:
int a;
x();
};
x:() { a=10; cout
class b:public x {
public:
b();
};
b::b() { a=20; cout
main ()
{ b temp;
}
what will be the output of this prg?
a) 10
b) 20
c) 2010
d) 1020
ans: b
