Alumnus Campus Placement Paper Technical - C & C++

1. When compiled from command line what are linking options?

2 You have written a code in C++, and u have to use a C library , what would u do?

(Ans: write extern "c" in header files)

3 .Fiber optic backbone is in which OSI layer?

4. void main()
{
int x=1;
int y=1;
int i;
for(i=2;i<=100;i++) { x=x+i;y=y*(i+1)/(i-1); } What are the values of x & y? 5. If we carry out operation (-3)+(-6),then which of the what will be the value of carry and sign flag? 6. void abc(int a[]) { int k=0;int j=50; while(ka[j])
k++;
else
j--;
}
How many times the loop will occur?

7. Integrate e^(x^-2)dx , with limits -infinity to +infinity? What is the final value?

8. Let p be a 16 bit number. The 2's complement of p will be represented by?

9. void main()
{
int a[]={5,4,3,2,1};
int x,y;
int *p=&a[2];
*p++;
x=++*p;
y=*(p++);
printf("%d %d",x,y)'
}
What will be the value of x and y?

10. Let there be a set of 3 numbers. Then number of groups possible?

11. A question on some technique used in DA-converter?

12. Which data structure to use for fastest search?

13. A binary tree contains 1024 elements. What is maximum number of comparisons needed to search an element?

14. s=1-1/4+1/16-1/32...... What is the value of S?

(Ans = 0.8 Hint Its a GP)

15. A C++ class has multiple references to base class. Then some options were given?

16. for(i=0;i<20;i++)
{
a[i]=i;

}
for(i=0;i<20;i++)
{
a[i]=a[19-i];
}
What is final value of array a? Options were there.

17. In Java can a variable be initialized inside a loop?

18. Two dices are thrown. What is the probability that the the number on the first dice is greater or equal to number on the second dice?