Technical Questions

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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0 2047
Q:

What are * and? when using them for wildcards in windows?

Answer

* - any characters, aribitary among


? - single character

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Subject: Hardware

0 2046
Q:

What are deadlock prevention techniques?

Answer

Mutual exclusion


Hold and wait


No preemption


Circular wait

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0 2045
Q:

What are types of threads?

Answer

User thread


Kernel thread

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1 2041
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 2039
Q:

Have you used Threads in Servelet?

Answer

Yes, single thread module

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Subject: Hardware

0 2039
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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0 2035
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 2032