Alumnus Placement Paper 1

Sample Test paper



1. Find the locus of the point whose sum of distance from 2 fixed points is constant.

2. [-infinity to +infinity]integration(exp(-x*x))

3. The product of any 3 consecutive nos is always divisible by _ ? options[12/6/10/24]

4 int i=0,j=50

while (i
{

if()

{



i++

}

elseif()

{

j--

}

else()

{

j--

}

}



How many times the body of the loopis going to be executed?

options[unknown/25/50/depends on the given condtn]



5 How can you include a library code written in C++ in a source code written in C?

(Options are there)

Ans. Some cross-linked platform(compiler) is required for this.





6 int a[20],i

for(i=0;i<20;i++)

{

a[i]=i;

}

for(i=0;i<20;i++)

{

a[i]=a[20-i]

}

What is the final content of the program.



7 Which data structure should be used for searching an element in an array in constant time in case of

average case? Ans. Hash table(not sure)



8 One question on ISO OSI model.easy one(not remembered)

9 Another question abt. a protocol Ans. Token/Ring

10 If we want to connect two systems to form a network which leyer(OSI) is of most interest to us?

Ans. Physical layer.