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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:

C program to find the factorial of a given number

Answer

 #include<stdio.h>
int main(){
  int i=1,f=1,num;

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

  while(i<=num){
      f=f*i;
      i++;
  }

  printf("Factorial of %d is: %d",num,f);
  return 0;
}

Sample output:
Enter a number: 5
Factorial of 5 is: 120

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Subject: Programming

0 2044
Q:

What is a device queue?

Answer

A list of processes waiting for a particular I/O device is called device queue.

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Subject: Operating Systems

0 2044
Q:

What are deadlock prevention techniques?

Answer

Mutual exclusion


Hold and wait


No preemption


Circular wait

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Subject: Operating Systems

0 2043
Q:

What are types of threads?

Answer

User thread


Kernel thread

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Subject: Operating Systems

1 2038
Q:

Have you used Threads in Servelet?

Answer

Yes, single thread module

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Subject: Hardware

0 2036
Q:

Differ between static and dynamic RAM?

Answer

Static RAM: no refreshing, 6 to 8 MOS transistors are required to form one memory cell, information stored as voltage level in flip flop. 


Dynamic RAM: refreshed periodically, 3 to 4 transistors are required to form one memory cell, information is  stored as a charge in the gate to substrate capacitance.

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Subject: Hardware

1 2035
Q:

What is flag?

Answer

Flag is a flip-flop used to store the information about the status of a processor and the status of the insturction executed most recently.


A software or hardware mark that signals a particular condition or status. A flag is like a switch that can be either on or off. The flag said to be set when it is turned on.

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Subject: Hardware

0 2032
Q:

What will be output of following c code?

#include <stdio.h>
int main()

{
    int i;
    for(i=10;i<=15;i++){
         while(i){
             do{
                 printf("%d ",1);
                 if(i>1)
                      continue;
             }while(0);
             break;
         }
    }
    return 0;
}

Answer

Output: 1 1 1 1 1 1
For loop will execute six times.


 


 


 


Note: continue keyword in do-while loop bring the program its while condition (while(0)) which is always false.

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Subject: Programming

0 2028