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Home » Placement Papers » Verifone Placement Papers » Verifone Placement Paper

New Click here to Download 2017 Latest placement papers of this company New

 

Verifone Placement Paper


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Verifone Interview.


Here, we had three single man panels. They are seeing the subjects 
taken and asking questions in that mainly. They didn't go deep into
any subject and they were just asking overview. When they catch any
new word they are asking about it. 

These are some of the questions asked to us.(not to a single person.)

What is a finite Automata.
what is a turing machine.
how many processors are there in a pentium microprocessor. in Sparc.
difference between risc and cisc.
is risc always fast.


what is a real time system.
name some real time OS
what are the characteristics of Real time OS.
is DOS a real time OS.
what is a kernel,shell.

what is binary search, traversal, hashing etc.
given a scenario what is the suitable data structure.
write a code to count the no. of 1's in a binary rep. of a number.
memory taken for char *, int * etc.
char *cp; int *ip; cp++,ip++ - what is the result.
compare the no. of bytes in unix and Dos for long char short int.
how to make programs portable on unix and Dos under such circumstances.
in c++, what is a constructor, destructor etc. 
what is friend etc.



what is waterfall model, prototype model etc.
what is testing. what is unit testing, integration testing etc.

What is indexing in databases? 
What is atomicity?
Can recursive pgms be written in C++, Write a recursive pgm to 
calculate factorial in c++.
What is best data structure to store the processes info in a real time 
operating system?




1]. The following variable is available in file1.c


static int average_float;

all the functions in the file1.c can access the variable


[2]. extern int x;

Check the answer

[3]. Another Problem with 

# define TRUE 0

some code

while(TRUE)
{
some code 

}


This won't go into the loop as TRUE is defined as 0


[4]. A question in structures where the memebers are dd,mm,yy.

mm:dd:yy
09:07:97

[5]. Another structure question 

1 Rajiv System Analyst

[6]. INFILE.DAT is copied to OUTFILE.DAT


[7]. A question with argc and argv . 

Input will be

c:\TEMP.EXE Ramco Systems India


-----------------------------------------------------------------------


main()
{
int x=10,y=15;
x=x++;
y=++y;
printf("%d %d\n",x,y);
}




----------------------------------------------------------------------


int x;
main()
{
int x=0;
{
int x=10;
x++;
change_value(x);
x++;
Modify_value();
printf("First output: %d\n",x);
}
x++;
change_value(x);
printf("Second Output : %d\n",x);
Modify_value();
printf("Third Output : %d\n",x);
}

Modify_value()
{
return (x+=10);
}

change_value()
{
return(x+=1);
}

----------------------------------------------------------------------------

main()
{
int x=20,y=35;
x = y++ + x++;
y = ++y + ++x;
printf("%d %d\n",x,y);
}

-----------------------------------------------------------------------


main()
{
char *p1="Name";
char *p2;
p2=(char *)malloc(20);
while(*p2++=*p1++);
printf("%s\n",p2);
}
----------------------------------------------------------------------


main()
{
int x=5;
printf("%d %d %d\n",x,x<<2,x>>2);
}

--------------------------------------------------------------------

#define swap1(a,b) a=a+b;b=a-b;a=a-b;
main()
{
int x=5,y=10;
swap1(x,y);
printf("%d %d\n",x,y);
swap2(x,y);
printf("%d %d\n",x,y);
}

int swap2(int a,int b)
{
int temp;
temp=a;
b=a;
a=temp;
return;
}
----------------------------------------------------------------------


main()
{
char *ptr = "Ramco Systems";
(*ptr)++;
printf("%s\n",ptr);
ptr++;
printf("%s\n",ptr);
}

---------------------------------------------------------------------

#include<stdio.h>
main()
{
char s1[]="Ramco";
char s2[]="Systems";
s1=s2;
printf("%s",s1);
}

-----------------------------------------------------------------



#include<stdio.h>
main()
{
char *p1;
char *p2;
p1=(char *) malloc(25);
p2=(char *) malloc(25);
strcpy(p1,"Ramco");
strcpy(p2,"Systems");
strcat(p1,p2);
printf("%s",p1);
}


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