Placement Papers - Cisco

Analytical Questions: 
find perimeter of a trapezium wit 3 sides given and distance b/w parallel  sides given...
A triangle ABC is given, a line DE is paralel to base side and that cuts  the triangle.. the ratio of area of triangle to the area of trapezium  .given DE/BC=3/5..
four concentric circles r given .the radius of 1st circle is x.next is  2x,then 3x and 4x. given that area b/w 2nd and 1st is A and 4th and 3rd  circles being B.find ratio of A to B
difference b/w the perimeteres of two concentric circles is 66.find the  difference b/w radius..
ans 10.5
3/p=6,3/q=15......find p-q 

 Technical Questions: 
#define clrscr() 100
main()
  {
  clrscr();
  printf("%d",clrscr());
 } 
which of the followin is used for avoidin network congestion
 bufferin
 cachin
 sourcequench
 all of de above
main()
{
 int a;
 printf("%d",scanf(%d,&a));
}
wats o/p of this pgm..wat will b printed
ans :0
main()
 {
  printf("as");
  printf("hi");
  printf("is
");
 } wat will b printed.
main()
 {
  unsigned short a=-1;
  unsigned char b=a;
  printf("%d %d ",a,b);
 }
 wat is o/p of the program
a. 65535 -1
b. 65535 65535
c. -1 -1 
arrays base address is 1000....array is a[5][4]..then wat is de
correct address of a[4][3]...
ans:1056
one packet is 64bytes..no of pkts send is 16000..then total no of bytes  send is
ans 1024000
#define maxval 5
int main (void)
 {
  int i=1;
  if(i-maxval)
  {
   printf("inside");
   }
else
  {
  printf("out");
  }
find o/p???
#define a 3+3
#define b 11-3
main()
{
 printf("%d",a*b);
}
wat is o/p?????
A question in which segment address is given ..logical address is 800..base  addresses also given ..u hav 2 find physical address..
There was a question on processor speed in nanocycles..then it performs a  instruction in x cycles..dont remember
main()
{
 int *i;
 int s=(int *)malloc(10*sizeof(int));
 for (i=0;i<10;i++)
  {
   printf("%d",i*i)
  }
wats o/p