Alumnus  Placement Paper   Technical - C & C++   -01 Jan 2011

#### Alumnus  Placement Paper   Technical - C & C++   -01 Jan 2011

• Posted by  FreshersWorld
7 Jan, 2012

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 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(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;
*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 initilised inside a loop?
18    Two dices are thrown.What is the probality that the the number on  the first dice is greater or equal to  number on the second dice?