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Technical Questions

Why Technical Knowledge?

In today's employment world, Information Technology plays major role. Technical knowledge along with Aptitude & Reasoning has become the doorway to software companies. When IT is extensively developing day to day, one should definitely acquire technical knowledge aiming to see career growth in software industry.


What in Technical Knowledge?

Programming Languages - to develop front end applications.

Database - to develop and maintain back end/ database applications.

Networking - understanding devices connected in network to communicate with each other as well as other networks.

Hardware - understanding processors, memory storage devices, Input & Output devices and more.

Operating System - to communicate between the software and Hardware in a computer.

Software Testing - the process of evaluating a system with the intend to satisfy specified requirements.


How to prepare for Technical Interviews?

One should be curious to knowledge updates; Software world is that place where you should keep updating with new market technology trends. Get some basic knowledge about all technical concepts as the logic remains same with any language and one can get the ease of working with any language in your company. Thoroughly get updates from your friends, IT magazines, Internet, News, etc. one can get knowledge from real time people through blogs.

Popular Latest Rated
Q:

Write a c program to print multiplication table

Answer

 #include<stdio.h>
int main(){
  int r,i,j,k;
  printf("Enter the number range: ");
  scanf("%d",&r);
  for(i=1;i<=r;i++){
      for(j=1;j<=10;j++)
           printf("%d*%d=%d ",i,j,i*j);
      printf("\n");
  }
  return 0;
}

Sample Output:
Enter the number range: 5

1*1=1 1*2=2 1*3=3 1*4=4 1*5=5 1*6=6 1*7=7 1*8=8 1*9=9 1*10=10
2*1=2 2*2=4 2*3=6 2*4=8 2*5=10 2*6=12 2*7=14 2*8=16 2*9=18 2*10=20
3*1=3 3*2=6 3*3=9 3*4=12 3*5=15 3*6=18 3*7=21 3*8=24 3*9=27 3*10=30
4*1=4 4*2=8 4*3=12 4*4=16 4*5=20 4*6=24 4*7=28 4*8=32 4*9=36 4*10=40
5*1=5 5*2=10 5*3=15 5*4=20 5*5=25 5*6=30 5*7=35 5*8=40 5*9=45 5*10=50

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Subject: Programming

0 2194
Q:

Point out the error, if any, in the following program.

main()

{

    int a = 10;

    void f();

    a = f();

    printf ( "\n %d", a );

}

void f()

{

    printf ( "\n Hi ");

}

Answer

In spite of defining the function f() as returning void, the program is trying to collect the value returned by f() in the variable a.

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Subject: Programming

0 2184
Q:

What is program counter in 8085?

Answer

Program counter holds the address of either the first byte of the next instruction to be fetched for exectuion or the address of the next byte of a multi byte instruction, which has not beeb completely fetched. in both the cases it gets increnented automatically one by one as the instruction bytes get fetched. Also Program register keeps the address of the next instruction.

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Subject: Hardware

0 2178
Q:

Will the following function work?

f1 ( int a, int b )

{

    return ( f2 (20) );

}

f2 ( int a )

{

    return ( a * a );

}

Answer

Yes

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Subject: Programming

0 2176
Q:

What would be the output of the following program assuming that the array beigns at location 1002?

main()

{

   int a[3][4] = {

                            1 , 2 , 3 , 4

                            5,  6 , 7, 8

                            9, 10 , 11, 12

                       };

    Printf ("\n%u %u %u", a[0] + 1, *( a[0] + 1), *( *(a + 0) + 1) );

}

Answer

1004  2  2

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Subject: Programming

1 2174
Q:

What is LATCH?

Answer

Latch is a D-type flip-flop used as a temporary tsorage device controlled by a tiing singnal, which can store 0 or 1. the primary function of a Latch is data storage. It is used in output devices such as LED, to hold the data for display.


To Store Monitor programs.

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Subject: Hardware

0 2172
Q:

Which Stack is used in 8085?

Answer

LIFO (Last In First Out) stack is used in 8085. In this type of Stack the last stord information can be retrieved first

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Subject: Hardware

0 2159
Q:

Write an RTL Description for D latch and D flip flop?

Answer

For D latch: always@(enable) q<=d;


For D flip flop: always@(opsedge clock) q<=d; 

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Subject: Hardware

0 2153