Paper: Alumnus campus placement paper (technical - c & c++)

Each Question had 5 options. There were 25 Question in all and all were objective type.

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

2. you have written a code in c++, and you have to use a c library , what would you 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 what will be the value of carry and sign flag?

6. Void abc (int a[])

{

int k=0;int j=50;

while(k<j)

{

if(a[i]>a[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?