Ikanos – Sample Questions 2004 NOV 21

Company: Ikanos

There were three sections:

1. Software

2. Hardware

3. Analytical

Only one MCQ question; all others to be solved analytically.

1.) Each of the letters below represents a non-zero and unique digit.
Find the digit.

one
one
one
+one
—–
ten
Find the digits.
Ans( one = 182 , ten=728).

2. Calculate the maximum permissible propagation delay of each FF in a modulo 1023 counter.

3. Find the error if any –
{

struct *sPtr, *nPtr

for(;*nPtr;nPtr=nPtr->next)

free(nPtr);

}

4. Find the output –
main()
{ void f(int, int);

int i, j;

i=10;

j=10;

f(++i,j++);

}

void f(int i, int j)

{if(i>50)return;

else

i+=j;

f(i,j);

printf(“%d”,i);

}

Ans 413121

5. Implement the following using 4X1 MUX.

A’BC + AB’C +ABC’

6. How will you convert an S-R FF into J-K FF ?