Technical Questions

Q:

What is the strength of the signal transmitted by powerful cell phones?

Answer

the powerful cell phones can transmit a signal of 3 watts.

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Subject: Hardware

0 3024
Q:

Point out the error, if any, in the while loop.

main()

{

  int i = 1;

  while ()

  {

     printf ( "%d", i++);

     if (i >10) 

     break ;

   }

}

Answer

The condition in the while loop is a must.

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Subject: Programming

0 3010
Q:

What are the key object oriented concepts used by Windows NT?

Answer

Encapsulation, Object class and instance.

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1 3008
Q:

public static void main string[] args Meaning is?

Answer

Here in this declaration public static void main string[] args, each keyword has its importance.


 


1. public - Here public is an access specifier which allows the main method to be accessible everywhere.


 


2. static - static helps the main method to get loaded without getting called by any instance/object.


 


3. void - void clarifies that the main method will not return any value.


 


4. main - It's the name of the method.


 


5. String[] args - Here we are defining a String array to pass arguments at the command line. args is the variable name of the String array.

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8 2999
Q:

What are the static and dynamic hazards in logic circuits?

Answer

If for a short period of time circuits goes to some different logic level then it is spposed to have then it is called static hazard. e.g., If the final logic value of output of given circuit becomes one vent if if is supposed to be zero then it is called static-0 Hazard and vice versa. Dynamic Hazard is the one in which the circuit output goes to some other logic level more than once then finally settling down to some appropriate level.

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Subject: Hardware

0 2998
Q:

 In enterprise data modeling, which is incorrect?

A) You review current systems. B) You implement the new database.
C) You describe the data needed at a very high level of abstraction. D) You plan one or more database development projects.
 
Answer & Explanation Answer: B) You implement the new database.

Explanation:
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Filed Under: Database

1 2995
Q:

There is a mistake in the following code. Add a statement in it to remove it.

main()

{

     int a;

     a = f (10, 3.14) ;

     printf ( " %d ", a );

}

f (int aa, float bb)

{

    return ( ( float ) aa + bb );

}

Answer

Add the following function prototype in main ():


float f ( int, float );

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Subject: Programming

0 2974
Q:

The no of entities participating in a relation is called

A) Relation B) Degree of relationship
C) Recursive relationship D) None of the above
 
Answer & Explanation Answer: B) Degree of relationship

Explanation:

The no of entities participating in relation is called Degree of relationship

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Filed Under: Database
Job Role: Database Administration

0 2965