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Infosys  Placement Paper 5


Which of the following involves context switch,
a) system call
b)privileged instruction
c)floating point exception
d)all the above
e)none of the above

Ans: a

For 1 MB memory no of address lines required,
a)11
b)16
c)22
d) 24

Ans: 16

Semaphore is used for
a) synchronization
b) dead-lock avoidance
c)box
d) none

Ans : a

Y=10;
if( Y++>9 && Y++!=10 && Y++>10)
printf("........ Y);
else printf("".... )


Ans : 13

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
d) ........


Ans : a

if x is even, then

(x%2)=0
x &1 !=1
x! ( some stuff is there)


a)only two are correct
b)three are correct

Ans : all are correct

Which of the function operator cannot be over loaded

a) <=
b)?:
c)==
d)*


Ans: b and d

10,20,30,40,50,60 : give the order when put in a queue and in a stack

Ans : Queue : 10,20,30,40,50,60
stack : 60,50,40,30,20,10

Debugging is the process of finding
Ans : logical and runtime errors

Trace the error:

void main()
{
int &a;
/* some other stuff here */
}

Ans: syntax error

A problem with a function named 'myValue' will be given and asked to  find the value of main() for an argument of 150,

Ans : 150

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