ISRO CS 2014

Write the output of the following C program

#include <stdio.h>

  int main (void)
  {
  int shifty;
  shifty = 0570;
  shifty = shifty >>4;
  shifty = shifty <<6;
  printf("the value of shifty is %o",shifty);
  }

The following three 'C' language statements is equivalent to which single statement? y=y+1; z=x+y; x=x+1

How many lines of output does the following C code produce? 
 

#include<stdio.h>
float i=2.0;
float j=1.0;
float sum = 0.0;
main()
{
    while (i/j > 0.001)
    {
        j+=j;
        sum=sum+(i/j);
        printf("%f\n", sum);
    }
}

What is the output of the following C program?

#include <stdio.h>
#define SQR(x) (x * x)
int main()
{
    int a;
    int b = 4;
    a = SQR(b + 2);
    printf("%d", a);
    return 0;
}

Consider a 50 kbps satellite channel with a 500 milliseconds round trip propagation delay. If the sender wants to transmit 1000 bit frames, how much time will it take for the receiver to receive the frame?

Which of the following is not a valid multicast MAC address?

A mechanism or technology used in Ethernet by which two connected devices choose common transmission parameters such as speed, duplex mode and flow control is called

The five items: A, B, C, D, and E are pushed in a stack, one after other starting from A. The stack is popped four items and each element is inserted in a queue. The two elements are deleted from the queue and pushed back on the stack. Now one item is popped from the stack. The popped item is

Consider the following sorting algorithms. 
I. Quicksort 
II. Heapsort 
III. Mergesort 
Which of them perform in least time in the worst case?

Which of the following is true with respect to Reference?