Technical Questions

Q:

What is an operating system?

Answer

 


An operating system is a program that acts as an intermediary between the user and the computer hardware. The purpose of an OS is to provide a convenient environment in which user can execute programs in a convenient and efficient manner. It is a resource allocator responsible for allocating system resources and a control program which controls the operation of the computer hardware.

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2 1999
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 1998
Q:

What would be the output of the following program, if the array beigns at address 65486?

main()

{

    int arr[] = {12,14,15,23,45};

    printf ("%u %u", arr, &arr);

}

Answer

65486  65486

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Subject: Programming

0 1997
Q:

In loading programs into memory, what is the difference between load-time dynamic linking and run-time dynamic linking?

Answer

For load-time dynamic linking: Load module to be loaded is read into memory. Any reference to a target external module causes that module to be loaded and the references are updated to a relative address from the start base address of the application module.


With run-time dynamic loading: Some of the linking is postponed until actual reference during execution. Then the correct module is loaded and linked.

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0 1985
Q:

What would be the output of the following program?

main()

{

    char a[] = "Visual C++";

    char *b = "Visual C++";

    printf ("\n%d %d", sizeof (a), sizeof (b));

    printf ("\n%d %d", sizeof (*a), sizeof (*b));

Answer

11  2


 1   1

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Subject: Programming

1 1983
Q:

Why the temporary registers W and Z are named so i mean we start from A, B, C, D, E then H and L coz H stands for higher bit and L for lower bit of the address pinted by memory pointer.. but wats W and Z for?

Answer

As W and Z alphabets are not widely used similarly as W and Z is internally used they would have been named so

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Subject: Hardware

0 1982
Q:

C program to find whether a number is palindrome or not.

Answer

 #include<stdio.h>
int main(){
    int num,r,sum=0,temp;

    printf("Enter a number: ");
    scanf("%d",&num);

    temp=num;
    while(num){
         r=num%10;
         num=num/10;
         sum=sum*10+r;
    }
    if(temp==sum)
         printf("%d is a palindrome",temp);
    else
         printf("%d is not a palindrome",temp);

    return 0;
}

Sample output:
Enter a number: 131
131 is a palindrome

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Subject: Programming

1 1980
Q:

What is microprocessor?

Answer

Micro processor is a program-controlled device, which fetches the instruction from memory, decodes and executes the instructions. Most Micro Processor are single-chip devices.

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Subject: Hardware

0 1975