Technical Questions

Q:

How would you obtain segment and offset addresses from a far address of a memory location?

Answer

#include "dos.h"


main()


{


    Char far *scr = ( char far *) 0xB8000000;


    Char *seg, *off;


    Seg = (char *) FP_SEG ( scr );


    Off = ( char *) FP_OFF ( scr );


}


 

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Subject: Programming

0 2353
Q:

What are the flags in 8086?

Answer

In 8086 Carry flag, Parity flag, Ausiliary carry flag, Zero flag, Overflow flag, Trace flag, Interrupt flag, Direction flag, and Sing flag.

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Subject: Hardware

0 2343
Q:

What would be the output of the following program?

/* sample.c */

main ( int argc, char **argv )

{

     argc = argc - (argc -1);

     printf ("%s", argv[argc - 1]);

}

Answer

C: \SAMPLE.EXE

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Subject: Programming

0 2339
Q:

Different IP address on same network?

Answer

There are two IP address assigned to each device on a Wi-Fi network.


 


An Internal (Private) and an External (Public) IP address.


 


Internal IP address is used for communication between Your computer and a smartphone or whatever devices that are connected to that Wifi network. This is unique for each. If they are same the system cannot differentiate between each device.


 


While, the External IP address is that visible to the the internet - the websites, the internet connected Apps so on. By default, Routers with NAT (all routers today have it) assign same Public IP address to all devices under its network.

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9 2325
Q:

What is a drawback of MVT?

Answer

It does not have the features like



  1. ability to support multiple processors

  2. virtual storage

  3. source level debugging

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0 2317
Q:

The Microsoft Access wildcards are ____ and ____ .

A) asterisk (*); percent sign (%)   B) percent sign (%); underscore (_)  
C) underscore(_); question mark (?) D) question mark (?); asterisk (*)
 
Answer & Explanation Answer: D) question mark (?); asterisk (*)

Explanation:
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Filed Under: Operating Systems
Exam Prep: Bank Exams
Job Role: IT Trainer

10 2316
Q:

Write a c program for merge sort.

Answer

#include
#define MAX 50

void mergeSort(int arr[],int low,int mid,int high);
void partition(int arr[],int low,int high);

int main(){
  
    int merge[MAX],i,n;

    printf("Enter the total number of elements: ");
    scanf("%d",&n);

    printf("Enter the elements which to be sort: ");
    for(i=0;i<n;i++){
         scanf("%d",&merge[i]);
    }

    partition(merge,0,n-1);

    printf("After merge sorting elements are: ");
    for(i=0;i<n;i++){
         printf("%d ",merge[i]);
    }

   return 0;
}

void partition(int arr[],int low,int high){

    int mid;

    if(low<high){
         mid=(low+high)/2;
         partition(arr,low,mid);
         partition(arr,mid+1,high);
         mergeSort(arr,low,mid,high);
    }
}

void mergeSort(int arr[],int low,int mid,int high){

    int i,m,k,l,temp[MAX];

    l=low;
    i=low;
    m=mid+1;

    while((l<=mid)&&(m<=high)){

         if(arr[l]<=arr[m]){
             temp[i]=arr[l];
             l++;
         }
         else{
             temp[i]=arr[m];
             m++;
         }
         i++;
    }

    if(l>mid){
         for(k=m;k<=high;k++){
             temp[i]=arr[k];
             i++;
         }
    }
    else{
         for(k=l;k<=mid;k++){
             temp[i]=arr[k];
             i++;
         }
    }
  
    for(k=low;k<=high;k++){
         arr[k]=temp[k];
    }
}


Sample output:

Enter the total number of elements: 5
Enter the elements which to be sort: 2 5 0 9 1
After merge sorting elements are: 0 1 2 5 9

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Subject: Programming

0 2316
Q:

What is FtDisk?

Answer

It is a fault tolerance disk driver for Windows NT.

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