ISRO CS 2017 - May

Question 71

What is the output of the following program? 

#include 
int tmp=20;
main( )
{
printf("%d ",tmp);
func( );
printf("%d ",tmp);
}
func( )
{
static int tmp=10;
printf("%d ",tmp);
}

• 20 10 10
  

• 20 10 20
  

• 20 20 20
  

• 10 10 10
  

Question 72

A B-Tree used as an index for a large database table has four levels including the root node. If a new key is inserted in this index, then the maximum number of nodes that could be newly created in the process are

• 5
• 4
• 1
• 2

Question 73

Which of the following operator(s) cannot be overloaded?

• . (Member Access or Dot operator)
• ?: (Ternary or Conditional Operator )
• :: (Scope Resolution Operator)
• All of the above

Question 74

What is the output of this C++ program?

#include 
using namespace std;
void square (int *x)
{
*x = (*x)++ * (*x);
}
void square (int *x, int *y)
{
*x = (*x) * --(*y);
}
int main ( )
{
int number = 30;
square(&number, &number);
cout << number;
return 0;
}

• 910
• 920
• 870
• 900

Question 75

Which of these is a super class of all errors and exceptions in the Java language?

• RunTimeExceptions
• Throwable
• Catchable
• None of the above

Question 76

The linux command “mknod myfifo b 4 16”

• Will create a character device if the user is root
• Will create a named pipe FIFO if the user is root
• Will create a block device if the user is root
• None of the above

Question 77

An Ethernet frame that is less than the IEEE 802.3 minimum length of 64 octets is called

• Short frame

• Small frame

• Mini frame

• Runt frame

Question 78

The default subnet mask for a class B network can be

• 255.255.255.0
• 255.0.0.0
• 255.255.192.0
• 255.255.0.0